TYPIFICATION OF TWO BUCKLEY GRASS NAMES REVISITED: MUHLENBERGIA TEXANA AND M. MONTICOLA (POACEAE)

3 Pages·1993·1.6 MB·English

by  Laurence J Dorr

TWO
OF BUCKLEY NAMES
TYPIFICATION GRASS
AND
MUHLENBERGIA TEXANA
REVISITED:
MONTICOLA
(POACEAE)
M.
DORR
LAURENCE
PAUL PETERSON
M.
and
J.
Department Botany
of
NHB-166,
S?nithsonian Institution
DC
Washington, 20360, U.S.A.
INTRODUCTION
Samuel B. Buckley (1862) based new species of grass on collections he made
In Texas and also specimens that had been deposited in the herbaria of the
Academy
of Natural Sciences of Pliiladelphia (PH) and Elias Durand (now P-
DU). Asa Gray (1862; see also Buckley 1870) took exception to Buckley's work
on grasses and wrote a scathing review^ which clarified details pertinent to the
typification of these names. In his review, Gray 862) noted that he had borrowed
1
(
the specimens that Buckley had used in preparing his paper and that he showed
them
to the agrostologist George Thurber. Details concerning Buckleys work
habits and the specimens that he examined are complicated. Consequently,
made Com-
mistakes frequently are in selecting lectotypes for Buckley names.
ments on the lectotypifications of two Buckley grass names are given below\
Muhlenbergia texana Buckley
In a recent revision of the annual species oi Muhlenbergia Schreber (Poaceae),
&
Annable
Peterson (1991) designated Wright 739 (US) the lectotype of
as
MO
Muhlenbergia texana Buckley and they considered a duplicate at to be an
isolectotype. Their choice, however, must be superseded. Fortunately, changing
change name.
the lectotype does not the application of
this
First, there no evidence that Buckley used Wright 739 material in describing
is
comments name
was on
this species. Gray's (1862) indicated that this based
Academy
material in the (PH), which presumably was collected by Buckley:
No
Muhlenbe^'gia Texana. specimens were communicated unc]er this name, but
'^
name
one given by Mr. Buckley to the Academy's herbarium under the oi'Agrostis
BuckU
harhatis, may, from the description, be the plant intended. This a form
is
diSporobolus ranmJosus/'
now
Secondly, Buckley did not have access to the Wright specimens that are
in the U.S. National Herbarium (US). The Wright material that Buckley used
Academy
to describe other species of gniss was in the herbarium of the (PH) and
Durand (now P-DU).
possibly that of
&
Peterson Annable (1990 mistakenly wrote Wright 739 Wright
Finally, for
589-591.
SiDA
1993
15(4):
1
SiDA 1993
590 15(-1):
GH NY
Nash
7j6. Wright 7j9 at and is Arhtukt wrightii (the type is Rcverchon
GH, US
NY,
1061, not a Wright collection). Wr/gbt 736 at and is Mub/cukrgu/
Buckley.
lexaru/
Academy
Buckley (PH)
There original material o(Al//b/a//m'gu/ texafk/ in the
is
that can serve as the lectotype of this name. It is part ofa sheet with fou r spec mens,
i
Grays
one of which labeled ''Agrost/s k/rhcnisl Buckl." by Buckley. (1862)
is
published comments were attached Buckley's specimen and was annotated
to
it
by Thurber: nwudosiis Rth./ This think M/{hleul?ergid Texana
^'Sporobohis 1 is/
We
Buckl./G[eorge}T[hurber}/' here select the material labelled
A^'rai'//V/;^yr/;^^^
PH We
by Buckley lectotype. have seen no duplicates of this collection.
at
iis
Muhlenbergia monticola Buckley
Buckley (1862) cited no collector and gave scanty localitydataC'Northwestern
when
Texas") he described Muhlenbergia monticola Buckley.
&
was Gray 862) who name was based on Wright 731
indicateel that this
It (1
PH
P-DU)
733 Clearly these Wright collections at (or are syntypes and only one
•
PH
of them can serve the lectotype. Annotations on the material at (both Wright
as
731 &c 733 are mounted on the same sheet) indicate that A. S. Hitchcock thought
He
Buckley's species was based on two different elements. annotated Wright 73
M
and Wright 733 Subsequently, Hitchcock
as AT. monticola as parrigl/z/nisYnsty,
.
(1950), in presenting a synonymy of Al. ?uonticola, listed Wright 73 U but he did
&
not designate the type of this name. Peterson Annable (1990 considered
it
MO
US
Wright 731 at to be the holotype and Wright 73 at an isotype thereby
1
lectotyplfying the name. Buckley, however, did not examine either
effectively
specimen. Hestudied Wrigbt73 at the Academy (PH) or in Durands herbarium
I
We PH
(now P-DU). Consequently,
here select the material at as lectotype.
MO
US
duplicates of Wright 731 at and become isolectotypes. However, AI.
synonym
of because of publication.
/nonlicola a AI. earlier
is teniiifolia
Shaw (1987) indicated that Wright 73 was made up of a single number
field
1
{972) of a grass that Wright collected on hills in the *Tass of the Limpia" on
August 24, 1849- There reasonable certainty that duplicates oiWright 731 are
is
McVaugh
Limpia
part of a single gathering. (1948) determined the Pass of the
to be the same as Wild Rose Pass, northeast of Fort Davis, Jeff Davis Co., Texas.
TAXONOMIC SUMMARY
Muhlenbergia
texanaBuckley,Proc. Acad. Nat. Philadelphia 91 1862.
14:
Sci.
Podusmum (Buckley) Bush, Amcr. Midi. 7:41. 192 Typf. [U.S.A.]
ti^xcinum N^icuralisc
1 .
V
Norrlu-ru Texas Agrostis Ihirkids Buckl/'l, May, {leg. S. B. Bmk/cy?] (LrxTO'J'VPii, here
PH!).
clesitrnared:
nom.
= Agrostis Ihirbatis Buckley ex Gray, Proc. Acad. Nat. Sci. Philadelphia l4; 33-1. 1862,
nud., pro syn.
nom.
= iWuhlmbtr^hi l)i{ckleyctnd Scribner in Coulter, Contr. U. S. Natl. Herb. 1(2); 56. SyO,
1
SLiperfl.
Dorr and
Peterson,
Muhlenbcrgia
591
Muhlenbergia
tenuifolia (H.B.K.) Kunth, Gramin.
Revis. 63. 1829.
1(4):
Mubkukygid
= Buckley, Proc. Acacl. Nat. Philadelphia 14:91. 1862; Gray,
w^;;/^/Vf?/^ Sci. Prtic.
Acad. Nat, Sci. Philadelphia 14: 334. 862. Type. [U.S.A. Texas. "Side of the Pass
hills in
1
Aug
of the Limpia," 24 18491, Charks Wright 731 (Lectotype, here PH!;
selected:
MO!,
IsoLEcroTYPES:
US!).
See Peterson and Annable (1991) other synonyms.
for
ACKNOWLEDGMENTS
GH, MO,
The NY, PH, US
curators of and kindly examine
lent or allowccl to
LIS
specimens
in their care.
REFERENCES
Bi;cKLEY, B. 1862. Descriptions of plants.-No. Proc. Acad, Nat, Philadelphia 14:88-
S. 3. Sci.
100.
1870. Remarks on Dr. Gray's notes on Buckley new plants of Texas. Proc. Acad.
s
Nat. Philadelphia 22:135-138.
Sci.
A
Gray, A. 1862. report upon Mr. B. Buckley's "Description of Plants, No. Gramincae,"
S.
3,
Academy
Published in the Proceedings of the of Natural Sciences of Philadelphia, February,
1862. Proc. Acad. Nat. Philadelphia 14:332-337.
Sci.
HrrcHCOCK,A.S. 950 Manual
[1951]. of the grasses of the United States, Ed. 2. U.S. D. A. Misc.
1
Publ. No, 200.
Wr
Wild Rose Pass, an obscure locality and actual Dosition.
its
1(4):207-213-
&
M.
Peterson,
P. C. R, AiNNABLE. 1991. Systematics of the annual species of M/d-)/e//krgia
Monogn
(Poaceae-Eragrostideae). Bot, 31:1-109.
Syst,
Wrigl
We