NOTEWORTHY PLANT RECORDS FROM LOUISIANA

2012·0.91 MB·

by  Chirstopher S Reid

NOTEWORTHY
PLANT RECORDS FROM
LOUISIANA
Christopher Reid 1 Lowell Urbatsch
S.
and
Department of Herbarium
Wildlife Fisheries Louisiana State University
Louisiana
2000 Quail Drive
USA
Room
Baton Rouge, Louisiana 70808, 202 Life Sciences Building
USA
[email protected] Baton Rouge, Louisiana 70803,
[email protected]
ABSTRACT
n Rhynchospora
bergii, Polygala brevi/olia,
RESUMEN
Panicum Schoeno-
UenLRedentes especlmenes de Eleocharis engelmannii, Eragrostis barrelieri, Fimbristylis schoenoides, hallii var./ilipes, y
plotus etuberculatus se consideran notables ya que hay pocas citas de estos taxa en Louisiana.
INTRODUCTION
new and
Recent floristic work in Louisiana has resulted in the discovery of plant records other significant col-
&
and Faulkner
Reid
Reid 2008;
kctions (Reid Faulkner 2006; MacRoberts et 2007; Reid et al. 2007; et al.
al.
2010). In this paper we report six species new to Louisiana and noteworthy collections of seven additional taxa.
and name.
Accounts of these records are presented alphabetically by family scientific
CYPERACEAE
typerus fuscus
L.
Maryland,
Connecticut,
Tucker etal. (2002) report the distribution of this exotic sedge to include California,
and Virginia in the
New South Dakota,
Massachusetts, Pennsylvania,
Missouri, Nebraska, Nevada, Jersey,
Arkansas and Mississippi
United been discovered in
States, and Ontario and Quebec Canada. has since
in It
& Both
Louisiana.
®fyson records of C. fuscus in
Carter The specimens below represent the first
2010). cited
and Bryson
New McKenzie (1998)
are from and Orleans. etal.
the Mississippi River bank between Baton Rouge
data
America and present ecological
^Carter North
on occurrence in
(2010) provide detailed information its
illustrations.
274 Journal of the Botanical Research Institute of Texas
6(1)
De
DUKE). The Soto Parish specimen
collected in 1967 fromJefferson Davis Parish (Thieret 27938, cited below
from Louisiana.
apparently the second record of this species
is
cm
km S of Frierson; lat/long: 32013'54.1"N, 93°42'23" W, abundant in wet swale growing in several of water, with Cyperus pseudavegttus,
schoenoides Vahl
Fimbristylis (Retz.)
Thomas and Allen (1993) report this species for Louisiana based on a specimen collected from a roadside ditch
Tammany The
in the vicinity of the community of Goodbee in St. Parish in 1960 Hebert 385, LSU). specimen
(
km
cited below was collected ca. 3.5 northeast of Goodbee and documents the continued existence of this ex-
otic sedge in that area ca. 50 years after its original discovery.
WMA,
Tammany Lake Ramsay Savannah Sof Lake Ramsay Sub<
specimens: Parish:
St.
NW
ATV
common
mi of Covington; 30°3r25"N, 90°10'41"W, along tr
5.5 air lat/long:
i.
VDB, VSCX same 13 Oct 2009, Reid 7289 (ANHC, EIU, LSU, MO).
locality,
Lipocarpha micrantha Tucker
(Vahl) G.
MacRoberts and MacRoberts (2006) report Lipocarpha micrantha from Caddo Parish in the extreme north-
western corner of the state based on a specimen coUected in 1959 (Shireman 56, LSU) from the shoreline of
Cross Lake. Lloyd and Tracy (1901) report L. micrantha from the bank of South Pass, which is part of the Mis-
sissippi River Delta in Plaquemines Parish. R.S. Cocks collected L. micrantha from “banks of the Mississippi
New
River, Orleans” near the turn of the 20th century Cocks NO). These records of Lipocarpha micrantha
s.n.,
(
known
were the only ones from Louisiana prior to 2010. Since the most recent of which is ca. 50 years old, the
species was ranked as historical for Louisiana (NatureServe 2010). Specimens cited below from Iberville,
Mary
new The Parish
Plaquemines, and Charles Parishes represent occurrences discovered in 2010. St.
St.
mixed with a sheet of Cyperus surinamensis Rottb. appears this small annual sedge may be overlooked in
It
Louisiana, rather than truly rare.
Rhynchospora inundata Femald
(Oakes)
in
Louisiana is
Rhynchospora inundata is not reported as occurring in Louisiana by Thomas and Allen (1993).
col-
specimen
eluded in the range of R. inundata by Moore (1997) and Krai possibly on the basis of a
(2000),
by
Tammany annotated
from
lected St. Parish in 1978 (Lqyacana and Pravata VDB). This specimen is
s.n.,
e
GA
Moore Fernald.
as R. inundata while its duplicate at annotated by Krai as Rhynchospora careyana
is
specimens,
viewed scanned images of these specimens. Well-developed rhizomes are present on both
inflorescence
spikelets are immature. Spikelets are dense relative to the characteristic open, sparsely populated
which*
described for R. inundata by McMillan (2007). The specific locality the community of Florenville,
is
GA
We
typified by wet flatwoods with conspicuous Taxodium ascendens Brongn. suspect the specimens at
VDB actually
we not
which did
are in fact R. careyana, is very abundant in the vicinity of Florenville. However,
275
cited below unambiguously vouch
for the presence of R. inundata in the Louisi-
W
ROW,
vil’s Lake, side of gas line below big
c
W
km
Hombeck,
5.4 air of lat/long: 31°19'52'
i.
ill!
in lake, 28Jul 2009, Reid 7130 (ANHC, LSU, TE L, VDB); 1 3 Aug 2009, Reid 7159 w/Allain and Moore (LSU, VSC); 21 Sep 2009, Reic
and Singhurst (E1U, LSU).
w/Jona
Schoenoplectus etuberculatus (Steud) Sojak
The record cited below is only the second extant population of Schoenoplectus etuberculatus known from Loui-
siana. Diggs et al. (2006) regard this species to be of conservation concern in Texas. The rarity rank assigned to
by NatureServe G3G4,
etuberculatus (2010) indicating potentially
S. is its global rarity.
W
ROW, km N
:imens: Sabine Parish: Devil’s Lake, side of gas line below big cutover sandhill 5.9 of LA 473 via gated private
W W
km
km
ofjet. w/LA 392, ca. 5.4 air of Hombeck, lat/long: 31°19'52,’N, 93027,24,,W, apparently natural lake of unknown
rally fertile culms, 28Jul 2i 7133 (LSU); 21 Sep 2009, Reid 7219 w/Jones and Singhurst (LSU).
OROBANCHACEAE
This specimen represents the second extant occurrence of this federally-listed, endangered plant in Louisiana
km
known
(NatureServe 2010). This population is ca. 11 northwest of the previously population in Allen Par-
on E
of Ragley, ca. 35 pi
POACEAE
Eragrostis Daveau
barrelieri
This Old World native found in disturbed areas and, in the United States, most frequent in the southwest,
is is
with
scattered southeastern occurrences (Peterson 2003). Allen et al. (2004) report E. barrelieri to occur in five
Louisiana parishes: Calcasieu, Cameron, Lafayette, Lincoln, and Webster. The specimens cited below repre-
new
sent parish records. Both specimens were collected along the Mississippi River below Baton Rouge.
Panicum
bergii
Arechav.
The
specimen of Panicum bergii cited below is apparently the first from Louisiana as it is not reported for the
NRCS
state by Thomas USDA,
and Freckmann and Lelong Allen or (2010).
Allen (2003), et (2004), It
al.
(1993),
•s regarded America by Gould Freckmann and Lelong
as an exotic in the U.S. and native to South (1975),
(20°3), Diggs and USDA, NRCS Correll andJohnston (1970) suggest some of the material
et (2010).
al. (2006),
ln Texa
s is native and that the distribution of the species is bicentric. Rosen (2007) treats P. bergii as a native
am
Phitropical inventory of a Texas coastal prairie remnant.
disjunct in his
floristic
Panicum
Vasey Waller
hallii var. filipes (Scribn.)
Hitchcock (1950) reports this taxon to occur at Shreveport, Louisiana. This report accounts for the inclusion
of
P. hallii var. filipes in Caddo Parish by Allen et al. (2004). Allen et al. (2004) also cite a specimen from Webster
Parish (Jeansonne s.n., LTU), collected from a nursery in Sibley, Louisiana. The P. hallii var. filipes record pre-
sented below is apparently only the third from Louisiana and is the first for which the associated natural com-
munity known.
is
N LA
a Prairie, of 3276 via Missile Base
ai
32°18'28”N, 93°48'23"V
lat/long:
,
POLYGALACEAE
Polygala brevifolia Nutt.
Thomas
Polygala brevifolia is not included in the Louisiana Flora by and Allen (1998) or Allen (1997); thus, it is
new on known
reported as to Louisiana the basis of the specimen cited below. This record extends the range of
known NRCS
the species slightly to the west as is from adjacent Hancock County, Mississippi (USDA, 2010).
it
SCROPHULARIACEAE
Veronica beccabunga
L.
Veronica beccabunga L. is reported for the first time to occur in Louisiana. Introductions of this European native
have been reported from locations scattered from Illinois eastward to Maryland, West Virginia, and possibly
NRCS
Virginia northward into Canada, and also for a few of counties in California and Nevada (USDA, 2010;
Weakley 2010). has been reported from documentation in Louisi-
It ca. one-half the counties in Michigan.
Its
km km
ana
represents range extensions of well over 1100 from Ohio and West and over 2700 from
Virginia
California and Nevada (USDA, PLANTS 2010). The Louisiana location from the Wax Lake Delta and is ac-
is
cessible only by boat. It was collected as part of the Coastwide Reference Monitoring System (CRMS) project of
the Louisiana Department
of Natural
Resources.
sea 22
level, Jul 2009, Dufrene
XYRIDACEAE
Xyris smalliana Nash
Xyris smalliana was included Thomas and Al-
in the Louisiana Flora by MacRoberts then excluded by
(1984),
len (1993). Voucher specimens supporting smalliana by Krai
the inclusion of Louisiana in the range of Xyris
unknown
Loui-
(2000) are to us. Therefore the specimens cited below confirm the presence of X. smalliana in
ACKNOWLEDGMENTS
George and Gordon we discov-
Dickson
allowed where
field surveys of Dickson northwest Louisiana
Prairie in
occur-
ered Panicum
hallii var. Charles Bryson (SWSL) made Cyperusfuscus
filipes. us aware of
of the possibility
ring in Louisiana and kindly provided specimens of taxon from We appreciate Jason Sing-
this Mississippi.
277
and showing
of Texas Parks Wildlife for Reid several populations of Xyris smalliana in southeast Texas,
hurst
which greatly helped in developing a search image for the species and increased the efficiency of finding in
it
Freckmann (UWSP)
Robert kindly provided determinations of Dichanthelium and Panicum. Robert
Louisiana.
We
(VDB) kindly provided verifications of Xyris smalliana and Rhynchospora inundata. appreciate
Krai staff at
VDB Army
GA and for providing images of Rhynchospora specimens. Christopher Brantley of U.S. Corps of
Engineers facilitated access to Bonne Carre Spillway where we discovered populations of Cyperus fuscus,
We
barrelieri, and Lipocarpha micrantha. thank Nelwyn Mclnnis and Latimore Smith of The Nature
Eragrostis
We
we
Conservancy for allowing access to Abita Flatwoods Preserve where collected Polygala are
brevifolia.
Cook and Dowden Hancock Management
indebted to Barry Terry of Forest for allowing our surveys of Devil’s
We
we
Lake where discovered Rhynchospora inundata and Schoenoplectus etuberculatus. thank D.C. Albach,
We
Institute ofBotany, University of Vienna, for identifying Veronica. express our gratitude to David Daigle for
Cow
we
allowing our access to several properties he manages, including Creek Savannah, where discovered
We
Schwalbea americana. commend his excellent management of this and other ecologically important sites.
Department and
Reid would like to express his appreciation for his employer, Louisiana of Wildlife Fisheries,
for providing the support necessary to conduct effective fieldwork and for paying the cost of this and other
publications. Department of Biological Sciences, Louisiana State University also supported various aspects of
We
and an anonymous
this work. appreciate the constructive reviews of Richard Carter reviewer.
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