TRIGLOCHIN CONCINNA (JUNCAGINACEAE), A NEW FAMILY, GENUS, AND SPECIES FOR TEXAS

2 Pages·2003·1.1 MB·English

by  B L Turner

TRIGWCHIN CONCINNA
AGINACEAE),
(JUNC
NEW
AND
A
FOR TEXAS
GENUS,
FAMILY, SPECIES
The University ofTexas at Austin Tlie University of Texas at Austin
McCombs
Plant Recourses Center School of Business
MBA
University Station F0404 Program Office
1
Austin, TX 787 12-0471, U.S.A. University Station B6004
1
Austin,TX 7871 2-0205,
U.S.A.
Triglochin a genus of about 20 species, most of these confined to aquatic habi-
is
more
tats in the temperate regions of the world (Thieret 1988). has not previ-
It
&
ously been reported for Texas (cf Haynes Hellquist 2000; Turner et 2003),
al.
.
New
although at least two species of the genus have been collected in Mexico
&
(Correll Correll
1972).
On
2003
July 26, a survey for plants along a saline aquatic habitat near
Ruidosa (Presidio County), Texas revealed Triglochin concinna var debilis (M.E.
embankment
Jones) Howell (Fig, growing along the of a perennial sulfur
J.T. 1)
We
stream. have followed the taxonomy of Thorne (1993) in recording this taxon,
we
although aware Haynes and
are that Hellquist (2000) position the latter in
broad concept maritima
their of
L.
T.
sulphur streams and about M.W. Tu rner 99 (SRSC, TEX).
tinajas.
uncommon
The was
species noted to be relatively at the site, although at least
four or five plants were noted along a path of about 40 meters. was growing
It
number
with a of other rarely encountered semiaquatic species of the Trans-
Pecos such as Anemopsis californica, Samolus and Eustoma exaltatum.
sp.,
Mr
The sampled upon the property of James Blumberg of Ruidosa,
site sits
We
him
Texas. are grateful to for permitting us entry to his property; indeed, he
accompanied us on our impromptu providing helpful comments on this
visit,
or that collecting
site.
D.S. and H.B. Correll. 972. Aquatic and wetland
1
\:
Washington
EPA, D.C.
5.
and Amer
2000.
lA. C.B. Hellquist. Triglochin, in N.
Fl.
1988. The Juncaginaceae the southeastern
.W. in
Jepson
THORNt, 993. Triglochin.Jhe Iiigher plants of California. Berkeley:Univ.
R.F.
1
of California Press.
and
Turner, H. Nichols, G. Denny, O. Dohon. 2003.
B.L.,