[Federal Register Volume 87, Number 163 (Wednesday, August 24, 2022)]
[Rules and Regulations]
[Pages 51928-51932]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2022-18223]


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DEPARTMENT OF THE INTERIOR

Fish and Wildlife Service

50 CFR Part 17

[Docket No. FWS-R4-ES-2020-0125; FF09E22000 FXES1113090FEDR 223]
RIN 1018-BE41


Endangered and Threatened Wildlife and Plants; Removing Adiantum 
vivesii From the Federal List of Endangered and Threatened Plants

AGENCY: Fish and Wildlife Service, Interior.

ACTION: Final rule.

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SUMMARY: We, the U.S. Fish and Wildlife Service (Service), are removing 
the plant Adiantum vivesii (no common name) from the Federal List of 
Endangered and Threatened Plants (List). This determination is based on 
a thorough review of the best available scientific and commercial data 
indicating that Adiantum vivesii is not a distinct species, but rather 
a sterile hybrid that does not have the capacity to establish a lineage 
that could be lost to extinction. Here, we have determined that 
Adiantum vivesii is not a discrete taxonomic entity and does not meet 
the definition of a species as defined under the Act, and that its 
original listing was based on data or interpretations of data that were 
in error; therefore, we are delisting it.

DATES: This rule is effective September 23, 2022.

ADDRESSES: This final rule, supporting documents, and the public 
comments received on the proposed rule are available on the internet at 
https://www.regulations.gov under Docket No. FWS-R4-ES-2020-0125.

FOR FURTHER INFORMATION CONTACT: Edwin Mu[ntilde]iz, Field Supervisor, 
Caribbean Ecological Services Field Office, P.O. Box 491, 
Boquer[oacute]n, PR 00622; [email protected]; telephone 787-405-
3641. Individuals in the United States who are deaf, deafblind, hard of 
hearing, or have a speech disability may dial 711 (TTY, TDD, or 
TeleBraille) to access telecommunications relay services. Individuals 
outside the United States should use the relay services offered within 
their country to make international calls to the point-of-contact in 
the United States.

SUPPLEMENTARY INFORMATION:

Previous Federal Actions

    On June 9, 1993, we listed Adiantum vivesii as an endangered 
species (58 FR 32308), due primarily to its limited distribution and 
low numbers of individuals.
    We completed two 5-year reviews for Adiantum vivesii, the first on 
June 10, 2008 (see the announcement initiating the review at 70 FR 
53807, September 12, 2005), and the second on September 25, 2018 (see 
the announcement initiating the review at 82 FR 29916, June 30, 2017). 
Both 5-year reviews recommended delisting due to the entity not meeting 
the Act's definition of a species; they found that the original data 
used at the time the entity was classified was in error. Peer reviewer 
comments received on the 5-year status review (2008) were part of our 
thorough review of the best available scientific and commercial data 
used to make our determination.
    On July 30, 2021, we proposed to delist Adiantum vivesii because it 
is not a listable entity under the Act; our proposal further explained 
that the original data used at the time the species was classified were 
in error (86 FR 40996). In that document, we requested information and 
comments from the public and peer reviewers on our proposal to delist 
Adiantum vivesii.

Summary of Changes From the Proposed Rule

    There are no changes in this final rule from our proposed rule (86 
FR 40996; July 30, 2021) based on the comments we received and that are 
summarized below under Summary of Comments and Recommendations.

Background

Regulatory Framework

    Section 4 of the Act (16 U.S.C. 1533) and its implementing 
regulations (50 CFR part 424) set forth the procedures for determining 
whether a species is an endangered species or a threatened species. On 
July 5, 2022, the U.S. District Court for the Northern District of 
California vacated regulations that the Service (jointly with the 
National Marine Fisheries Service) had promulgated in 2019 (Center for 
Biological Diversity v. Haaland, No. 4:19-cv-05206-JST, Doc. 168 (CBD 
v. Haaland). As a result of that vacatur, regulations that were in 
effect before those 2019 regulations now govern listing and critical 
habitat decisions. Our analysis for this decision applied those pre-
2019 regulations. However, given that litigation remains regarding the 
court's vacatur of those 2019 regulations, we also undertook an 
analysis of whether the decision would be different if we were to apply 
the 2019 regulations. We concluded that the decision would have been 
the same if we had applied the 2019 regulations. The analysis based on 
the 2019 regulations is included in the decision file for this 
decision.
    The following discussion contains information that was presented in 
the proposed rule to delist Adiantum vivesii (86 FR 40996; July 30, 
2021). A thorough discussion of the species' description, habitat, and 
life history is also found in that proposed rule.

Entity Description

    Adiantum vivesii was found growing in colonies (clusters) where the 
rhizome (rootstock or underground stem) spreads horizontally. The 
fronds (leaves) are distichous (arranged in one plane) and erect-
spreading with broad and irregular lance-oblong blades. The blades have

[[Page 51929]]

two or three alternate or occasionally subopposite pinnae (segment of 
leaf), with a larger terminal pinna. The terminal pinnae are stalked 
often somewhat inequilateral with approximately 10 to 13 pairs of 
alternate, narrowly oblong-falcate pinnules (smaller segments of a 
leaf), shaped unequally cuneate at the base. The irregularly branched 
stalks are lustrous purple-black with hairlike scales. The rachis (axis 
of a fern leaf) and costae (central vein of a leaf) are more densely 
covered with hairlike scales than the stipe. The outer sterile margins 
of the pinna are irregularly serrulate (serrated teeth), and the tissue 
is dull green on both sides. Five elliptic to linear sori (sacks of 
spores) are borne along the basal half of the acroscopic (facing the 
apex) margin. The sori are also close or contiguous, but remain 
distinct, and the indusium flap (tissue covering the sori) is gray-
brown and turgid, with an erose (irregular) margin (Proctor 1989, p. 
140; USFWS 1995, pp. 1-2).

Distribution and Habitat

    Adiantum vivesii was found in the limestone or karst region of 
northwestern Puerto Rico. This region is underlain by limestone rocks 
of the Oligocene or Miocene age. Topography varies throughout the karst 
region, from extremely rugged to gentle rolling hills. Canyons, 
sinkholes, and subterranean rivers, as well as these rolling hills, are 
the most common features of the region. Soils in the limestone hills 
are shallow, well-drained, alkaline, and interspersed between limestone 
outcrops (Lugo et al. 2001, pp. 13-26; USFWS 1995, pp. 6-7). Adiantum 
vivesii occurs within the semi-evergreen seasonal forests of the 
subtropical moist forest life zone (Ewel and Whitmore 1973, p. 20). 
This life zone, which covers 58 percent of the total area of Puerto 
Rico and the U.S. Virgin Islands, is delineated by a mean annual 
rainfall of between 1,000 to 1,100 millimeters (mm) (40 to 44 inches 
(in)) and about 2,000 to 2,200 mm (80 to 88 in) and a mean temperature 
between about 18 and 24 degrees Centigrade (64.4 and 75.2 degrees 
Fahrenheit) (Ewel and Whitmore 1973, p. 20). Adiantum vivesii occurs in 
a deeply shaded hollow at the base of a privately owned limestone hill 
in the municipality of Quebradillas (USFWS 1995, p. 7).
    When the species was listed in 1993, it was known from only one 
population, which was estimated at 1,000 plants or growing apices by 
Proctor (1991, p. 5). The population was later documented in 2000 at 
the same location occurring in an area of 21 meters (m) by 10 m (68.9 
feet (ft) by 32.8 ft) by Sep[uacute]lveda-Orengo (2000, p. 21). In the 
vicinity of this area, eight other species of the genus Adiantum were 
found (A. cristatum, A. fragile, A. latifolium, A. melanoleucum, A. 
pulverulentum, A. tenerum, A. tetraphyllum, and A. wilsonii). The fern 
Adiantum tetraphyllum was growing intermixed within the area occupied 
by Adiantum vivesii (Sep[uacute]lveda-Orengo 2000, p. 22). Surveys 
conducted in 2017 at the type locality (the location where the specimen 
was first identified) were unable to identify material that 
morphologically matched the original type specimen (despite 
similarities), nor any clonal stand of Adiantum vivesii material as it 
had been described there in 1991 and 2000 (Possley et al. 2020, p. 6). 
These results suggest that Adiantum vivesii is extirpated from the only 
known location.

Taxonomy

    Adiantum vivesii was believed to be a fern of the family 
Pteridaceae. It was described by Dr. George R. Proctor in 1985, from 
specimens collected by Miguel Vives and William Estremera at San 
Antonio Ward in the municipality of Quebradillas (Proctor 1989, p. 
140). Non-genetic research on Adiantum vivesii after it was described 
as a species suggested this fern is a single sterile hybrid plant, 
rather than a population of individuals of a species (Sep[uacute]lveda-
Orengo 2000, entire). Excavations at different points throughout the 
entire ``population'' of Adiantum vivesii found rhizome, or underground 
stem, connections between most of the apparent individual ferns 
(Sep[uacute]lveda-Orengo 2000, p. 21). Plantings of two 10-centimeter 
(4-inch) rhizome segments (planted in pots using the same soil from the 
colony location) of Adiantum vivesii grew into healthy plants within 
about 3 months (Sep[uacute]lveda-Orengo 2000, p. 21). Production of 
sporangia (structures from which the reproductive gametophytes arise) 
was observed throughout the year, but actual gametophytes (structures 
containing sperm and eggs, or gametes) were not observed. The lack of 
gamete production but growth of fronds from rhizome segments suggests 
that the Adiantum vivesii ``population'' consists of only one 
individual with rhizome proliferations (below-ground stems).
    A morphometric analysis of Adiantum vivesii and the co-occurring 
species, Adiantum tetraphyllum, was conducted on 21 vegetative 
characters and one spore character (Sep[uacute]lveda-Orengo 2000, p. 
22). In conjunction with the morphometric analysis, the following 
studies of Adiantum vivesii and Adiantum tetraphyllum were conducted: 
chromosome counts; light microscopy observations of fresh or dried 
pinnules, sori, and sporangia; and scanning electron microscopy (SEM) 
of rhizomes, fertile pinnules, and spores. The morphometric analysis 
showed significant differences between Adiantum vivesii and Adiantum 
tetraphyllum for 16 of the vegetative characters as well as spore size, 
revealing that Adiantum vivesii is morphologically different. Based on 
the results, the morphological features that best distinguish Adiantum 
vivesii from Adiantum tetraphyllum are the number of lateral pinnae and 
the number of pinnules on each lateral pinna, which are fewer in 
Adiantum vivesii. Although there are morphological differences, 
chromosome number in each taxon appears to be similar 
(Sep[uacute]lveda-Orengo 2000, p. 23), indicating Adiantum vivesii is 
not a polyploid (possesses more than two sets of chromosomes), a common 
cause of sterility in plants.
    Based on spore observations in the light microscopy and SEM 
studies, Adiantum vivesii appears to be a sterile hybrid 
(Sep[uacute]lveda-Orengo 2000, p. 31). The greater variation in spore 
size in Adiantum vivesii observed in these studies was mainly produced 
by spore abortion. These observations of sori containing abortive 
sporangia and spores suggested Adiantum vivesii is indeed a hybrid 
(Sep[uacute]lveda-Orengo 2000, p. 29). Further, the forms of the spores 
of Adiantum vivesii are different from Adiantum tetraphyllum because of 
the collapse of the exospore (outer layer of the spore membrane) that 
is associated with the absence of the protoplast (plant cell with no 
cell wall). Mature spores of Adiantum vivesii are more compactly 
constructed than those of Adiantum tetraphyllum, with the sporangia 
appearing as more or less globular objects tightly grouped together, 
which is consistent with the sorus (spore-producing structure) of a 
hybrid (Sep[uacute]lveda-Orengo 2000, p. 28).
    Based on the initial taxonomic analysis discussed above, Adiantum 
vivesii does not appear to be a distinct species (Sep[uacute]lveda-
Orengo 2000, entire). This analysis showed that sporangia and spores 
were produced throughout the year, but signs of sexual reproduction as 
gametophytes or small plants were not observed. The plant instead 
reproduces vegetatively (asexually), and the entire colony seems to be 
the result of vegetative reproduction via rhizomes from a single, 
sterile individual (Sep[uacute]lveda-Orengo 2000, pp. 26-31).
    More recently, the Fairchild Tropical Botanical Garden (Fairchild) 
has

[[Page 51930]]

collaborated with the Service on the assessment of endangered ferns 
including Adiantum vivesii (Possley and Lange, 2016 and 2017, p. 4; 
Possley et al. 2020, pp. 5-11). In 2017, fieldwork was conducted to 
assess the colony of Adiantum vivesii and collect material for genetic 
analyses. Fairchild engaged Dr. Emily Sessa from the University of 
Florida (UF) to assist on a genetic study to validate whether Adiantum 
vivesii is a hybrid as indicated by Sep[uacute]lveda-Orengo (2000, p. 
29).
    Leaf material for DNA extraction was collected in the field in 
Puerto Rico in February 2017, and from herbarium specimens, including 
the isotype (duplicate or very similar type specimen) for Adiantum 
vivesii. A total of 27 specimens from the genus Adiantum were sampled 
from the field and herbarium specimens (all material of Adiantum 
vivesii was from herbarium specimens): 5 identified as A. latifolium, 2 
as A. obliquum, 3 as A. petiolatum, 4 as A. pyramidale, 5 as A. 
tetraphyllum, 4 as A. vivesii, and 4 unidentified Adiantum individuals 
(Possley et al. 2020, p. 6).
    The analysis found that five samples, including the Adiantum 
vivesii isotype, had sequence variants that fell in different groups, 
which indicate their hybrid origin (Possley et al. 2020, p. 10). The 
genetic sequencing further indicates that Adiantum vivesii is of hybrid 
origin with Adiantum petiolatum as one parent and the other parent 
likely being Adiantum tetraphyllum (Possley et al. 2020, p. 10).
    The Act and supporting regulations define a species as any species 
or subspecies of fish, wildlife, or plant, and any distinct population 
segment of any vertebrate species that interbreeds when mature, but do 
not further define the terms ``species'' or ``subspecies'' used in this 
definition. Rather, per 50 CFR 424.11(a), the Service shall rely on 
standard taxonomic distinctions and the biological expertise of the 
Department of the Interior (Department) and the scientific community in 
determining whether a particular taxon or population is a species for 
the purposes of the Act. The standard biological definition of a 
``species'' is a group of organisms that are capable of interbreeding 
when mature. The application of this definition becomes more 
complicated with plant species, as many can exhibit asexual 
reproduction (NRC 1995, p. 50). For this reason, we consulted with 
experts to assist in determining the appropriate treatment for this 
entity (Riibe 2020, pers. comm.; Sessa 2020, pers. comm).
    Based upon expert input, here we are considering a species to be a 
distinct unit with a natural evolutionary trajectory, meaning that it 
has the ability to establish a lineage that could be lost to extinction 
(NRC 1995, p. 54; Riibe 2020, pers. comm.; Sessa 2020, pers. comm.). In 
the case of Adiantum vivesii, it was determined to be a sterile hybrid 
by Sep[uacute]lveda-Orengo (2000, entire), indicating that Adiantum 
vivesii is unable to sexually reproduce and is unlikely to perpetuate 
into the future. This research also demonstrated that the only known 
population was comprised of clonal individuals resulting from rhizome 
proliferations, some of which eventually fragmented.
    Despite the extensive botanical research and inventories in Puerto 
Rico by the late Dr. George Proctor (former authority on ferns across 
the Caribbean) and other experts, Adiantum vivesii remains only known 
from the type locality. Additionally, during the latest field surveys 
at the type locality (2017), the Fairchild team was unable to locate 
material that morphologically matched the type specimen (despite 
similarities), nor any clonal stand of Adiantum material as described 
by Proctor and Sep[uacute]lveda-Orengo (Possley et al. 2020, p. 6). The 
team collected a variety of morphotypes from the type locality for 
genetic sequencing at the University of Florida; however, none of the 
material was a genetic match to Adiantum vivesii. These results suggest 
that Adiantum vivesii is extirpated from the only known location. 
Recent research has confirmed that Adiantum vivesii is a sterile hybrid 
that does not have the capacity to establish a lineage that could be 
lost to extinction (Possley et al. 2020, pp. 6-10). Consequently, we 
have determined that Adiantum vivesii does not qualify as a listable 
entity under the Act; the original data used at the time the entity was 
classified were in error; and thus Adiantum vivesii should be delisted.

Summary of Comments and Recommendations

    In the proposed rule published in the Federal Register on July 30, 
2021 (86 FR 40996), we requested that all interested parties submit 
written comments on our proposal to delist Adiantum vivesii by 
September 28, 2021. We also contacted appropriate Federal and State 
agencies, scientific experts and organizations, and other interested 
parties and invited them to comment on the proposal. Newspaper notices 
in both Spanish and English inviting general public comment were 
published in El Nuevo D[iacute]a on July 31, 2021. We did not receive 
any requests for a public hearing nor any substantive information 
during the comment period.
    In addition, in accordance with our joint policy on peer review 
published in the Federal Register on July 1, 1994 (59 FR 34270), and 
our August 22, 2016, memorandum updating and clarifying the role of 
peer review of listing actions under the Act, we solicited expert 
opinion from eight knowledgeable individuals with scientific expertise 
that included knowledge of ferns and plant taxonomy. The selected 
experts were asked to help us identify any oversights, omissions, and 
inconsistencies; provide advice on reasonableness of judgments made 
from the scientific evidence; help us ensure that scientific 
uncertainties are identified and characterized; provide advice on the 
overall strengths and limitations of the scientific data used in the 
document; and inform us of any scientific information that we did not 
use. We received no responses from any of the peer reviewers.
    During the comment period, we received four comments from the 
public on the proposal to delist Adiantum vivesii. We did not receive 
any comments from the Commonwealth of Puerto Rico or Federal agencies. 
All comments are posted at https://www.regulations.gov under Docket No. 
FWS-R4-ES-2020-0125.
    Some public commenters did not state whether or not they support 
the delisting; others did not support delisting, but did not provide 
any evidence that Adiantum vivesii was actually a listable entity. 
Commentors mostly supported keeping Adiantum vivesii on the List in 
order to preserve its habitat even though it does not qualify as a 
listable entity and the original data used at the time the entity was 
classified were in error. One commentor further stated that the 
entity's midvein, which makes the leaf asymmetric, and its low number 
of pinnae give Adiantum vivesii unique morphological features. We 
acknowledge that Adiantum vivesii has unique morphological features; 
however, this fact, in and of itself, does not indicate that the entity 
is listable under the Act or that the original data used at the time 
the entity was classified were valid. The Act and supporting 
regulations define a species as any species or subspecies of fish, 
wildlife, or plant, and any distinct population segment of any 
vertebrate species that interbreeds when mature. Because the Act did 
not further define ``species,'' in our proposed rule, we considered a 
species to be a distinct unit with a natural evolutionary trajectory, 
meaning that it has the ability to establish a lineage that could be 
lost to extinction (NRC 1995, p. 54; Riibe 2020, pers. comm.; Sessa 
2020, pers. comm.). As

[[Page 51931]]

Adiantum vivesii is a sterile hybrid that does not have the capacity to 
establish a lineage that could be lost to extinction, we have 
determined that the entity does not qualify as a listable entity under 
the Act and the original data used at the time the entity was 
classified were in error. None of the commenters provided information 
to dispute this.

Delisting Determination

    Section 4 of the Act (16 U.S.C. 1533) and its implementing 
regulations (50 CFR part 424) set forth the procedures for adding 
species to, removing species from, or reclassifying species on the 
Lists of Endangered and Threatened Wildlife and Plants. Our regulations 
at 50 CFR 424.11 identify three reasons why we might determine that a 
listed species is neither an endangered species nor a threatened 
species: (1) The species is extinct; (2) the species has recovered, or 
(3) the original data used at the time the species was classified were 
in error.
    Under section 3 of the Act and our implementing regulations at 50 
CFR 424.02, a ``species'' includes any subspecies of fish or wildlife 
or plant, and any distinct population segment of any species of 
vertebrate species which interbreeds when mature. As such, a species 
under the Act may include any taxonomically defined species of fish, 
wildlife, or plant; any taxonomically defined subspecies of fish, 
wildlife, or plant; or any distinct population segment of any 
vertebrate species as determined by us per our Policy Regarding the 
Recognition of District Vertebrate Population Segments Under the 
Endangered Species Act (61 FR 4722; February 7, 1996).
    Our implementing regulations provide further guidance on 
determining whether a particular taxon or population is a species or 
subspecies for the purposes of the Act; under 50 CFR 424.11(a), the 
Service shall rely on standard taxonomic distinctions and the 
biological expertise of the Department and the scientific community in 
determining whether a particular taxon or population is a species for 
the purposes of the Act. For listing determinations, section 4(b)(1)(A) 
of the Act mandates that we use the best scientific and commercial data 
available for each species under consideration. Given the wide range of 
taxa and the multitude of situations and types of data that apply to 
species under review, the application of a single set of criteria that 
would be applicable to all taxa is not practical or useful. In 
addition, because of the wide variation in the kinds of available data 
for a given circumstance, we do not assign a priority or weight to any 
particular type of data, but must consider it in the context of all the 
available data for a given species.
    To determine what constitutes a listable entity under the Act, we 
evaluate and consider all available types of data, which may or may not 
include genetic information, to determine whether a taxon is a 
distinguishable species or subspecies. As a matter of practice, and in 
accordance with our regulations, in deciding which alternative 
taxonomic interpretations to recognize, the Service rely on the 
professional judgment available within the Service and the scientific 
community to evaluate the most recent taxonomic studies and other 
relevant information available for the subject species. Therefore, we 
continue to make listing decisions based solely on the best scientific 
and commercial data available for each species under consideration on a 
case-by-case basis.
    In making our determination whether Adiantum vivesii is a listable 
entity, we considered all available data that may inform the taxonomy 
of Adiantum vivesii, such as ecology, morphology, and genetics, as well 
as expert opinion (Riibe 2020, pers. comm.; Sessa 2020, pers. comm). 
Here, we considered the ability of an entity to establish a lineage 
that could be lost to extinction in our determination of whether the 
species constitutes a listable entity.
    After a review of all information available, we determined to 
remove Adiantum vivesii from the List of Endangered and Threatened 
Plants at 50 CFR 17.12. Since the time of listing, additional studies 
have shown that Adiantum vivesii is not a distinct species, but rather 
a sterile hybrid with rhizome proliferations that lacks the ability to 
establish a lineage that could be lost to extinction. As a result, we 
have determined that Adiantum vivesii was listed based on data or 
interpretations of data that were in error and that the entity is not a 
listable entity under the Act; therefore, we are delisting it.

Determination of Status

    Our review of the best available scientific and commercial 
information available indicates that Adiantum vivesii is not a valid 
taxonomic entity and that original data for classification of Adiantum 
vivesii when it was listed was in error. Therefore, we are removing 
Adiantum vivesii from the List of Endangered and Threatened Plants. 
Adiantum vivesii does not require a post-delisting monitoring plan 
because the requirements for a monitoring plan do not apply to species 
that are delisted for not meeting the statutory definition of a species 
because the original data for classification were in error.

Effects of This Rule

    This rule revises 50 CFR 17.12(h) by removing Adiantum vivesii from 
the Federal List of Endangered and Threatened Plants. On the effective 
date of this rule (see DATES, above), the prohibitions and conservation 
measures provided by the Act, particularly through sections 7 and 9, 
will no longer apply to Adiantum vivesii. Federal agencies will no 
longer be required to consult with the Service under section 7 of the 
Act in the event that activities they authorize, fund, or carry out may 
affect Adiantum vivesii. There is no critical habitat designated for 
Adiantum vivesii, so there will be no effect to 50 CFR 17.96.

Required Determinations

National Environmental Policy Act (42 U.S.C. 4321 et seq.)

    We have determined that environmental assessments and environmental 
impact statements, as defined under the authority of the National 
Environmental Policy Act (NEPA; 42 U.S.C. 4321 et seq.), need not be 
prepared in connection with determining a species' listing status under 
the Act. We published a notice outlining our reasons for this 
determination in the Federal Register on October 25, 1983 (48 FR 
49244).

Government-to-Government Relationship With Tribes

    In accordance with the President's memorandum of April 29, 1994 
(Government-to-Government Relations with Native American Tribal 
Governments; 59 FR 22951), Executive Order 13175 (Consultation and 
Coordination with Indian Tribal Governments), and the Department of the 
Interior's manual at 512 DM 2, we readily acknowledge our 
responsibility to communicate meaningfully with recognized Federal 
Tribes on a government-to-government basis. In accordance with 
Secretarial Order 3206 of June 5, 1997 (American Indian Tribal Rights, 
Federal-Tribal Trust Responsibilities, and the Endangered Species Act), 
we readily acknowledge our responsibilities to work directly with 
Tribes in developing programs for healthy ecosystems, to acknowledge 
that Tribal lands are not subject to the same controls as Federal 
public lands, to remain sensitive to Indian culture, and to make 
information available to Tribes. We have determined that there are no 
Tribal lands that may be affected by this rulemaking.

[[Page 51932]]

References Cited

    A complete list of all references cited in this rule is available 
at https://www.regulations.gov at Docket No. FWS-R4-ES-2020-0125, or 
upon request from the Caribbean Ecological Services Field Office (see 
FOR FURTHER INFORMATION CONTACT).

Authors

    The primary authors of this rule are the staff members of the Fish 
and Wildlife Service's Species Assessment Team and the Caribbean 
Ecological Services Field Office.

List of Subjects in 50 CFR Part 17

    Endangered and threatened species, Exports, Imports, Plants, 
Reporting and recordkeeping requirements, Transportation, Wildlife.

Regulation Promulgation

    Accordingly, we amend part 17, subchapter B of chapter I, title 50 
of the Code of Federal Regulations, as follows:

PART 17--ENDANGERED AND THREATENED WILDLIFE AND PLANTS

0
1. The authority citation for part 17 continues to read as follows:

    Authority: 16 U.S.C. 1361 1407; 1531 1544; and 4201 4245, unless 
otherwise noted.


Sec.  17.12   [Amended]

0
2. In Sec.  17.12, paragraph (h), amend the List of Endangered and 
Threatened Plants by removing the entry for ``Adiantum vivesii'' under 
FERNS AND ALLIES.

Martha Williams,
Director, U.S. Fish and Wildlife Service.
[FR Doc. 2022-18223 Filed 8-23-22; 8:45 am]
BILLING CODE 4333-15-P