DISCOVERY OF SUBULARIA-AQUATICA L IN COLORADO AND THE EXTENSION OF ITS RANGE

3 Pages·1993·1.1 MB·English

by  J K Nelson

RHODORA,
Vol. 95, No. 882, 155-157, 1993
pp.
DISCOVERY OF
SUBULARIA AQUATIC
A
IN
L.
COLORADO AND
THE
EXTENSION OF RANGE
ITS
JoDY Nelson and Harmon
K. William
E.
ii
ABSTRACT
f
A
new
record for the vascular flora of Colorado reported. Subularia aquatica
is
L. was found growing on muddy, bottom
a subalpine lake in north-central Col-
orado during the field season of 1992. This extends previously known range
its
in the Southern Rocky Mountains by approximately 220 miles (354 km) to the
east from the Utah localities and 270-280 miles (435-450 km) southeastward
from Wyoming
its localities.
Key
Words:
Subularia aquatica Colorado, vascular range extension
L., flora,
work summer new
Field during the of 1992 has added a record
to the vascular of Colorado. Treatments by Coulter
flora (1885),
Rydberg Femald
Gleason Harrington
(1917), (1950), (1952),
(1954), Gleason and Cronquist Mulligan and Calder(1964),
(1963),
Dom(1988),
Weber(1976, and Weber and Wittman
1987, 1990),
do
(1992), not indicate that Subularia aquatica L. occurs in Col-
I
orado.
I
I
Subularia aquatica L. a dwarf, aquatic or littoral mustard,
is
when
which submerged
in or
the flowers are either self-pollinating
mous
common
(Mullig
bottoms
(Gleason,
1952).
The
Colorado
discovery of aquatica in v
5.
(R75W
Wilderness Area, Larimer County,
Mullig
found growing
Calder aquatica often in
(1964) report that 5. is
grass
OL
The Colorado specimens were
species of Limosella examples.
as
muddv bottom
lake
mann
there.
discovery
Moun
Rocky
Southern
Widely northern
across the
distributed
155
.1^^
I
Rhodora
156 [Vol.95
Greenland, northern Europe the Urals, then disjunct
Iceland, to
Kamchatka, and then extending from Alaska to Newfoundland,
to
southward North America
into Cal-
furthest distribution in
is
its
Wyoming
and and
ifomia, Utah, (Mulligan Calder, 1964).
The Colorado from Mirror
closest collections to the location are
New
Duchesne Utah and Fork
Lake, Co., Lakes, Sublette Co.,
Dinwoody Creek, Fremont Co., and Yellowstone Lake, Yellow-
Wyoming
and
stone National Park, in (Mulligan Calder, 964).
all 1
This discovery of aquatica L, in Colorado extends range
its
>S'.
eastward from Utah by approximately 220 miles (354 km) and
Wyoming
range southeastward from the localities by approx-
its
270-280 (435^50
imately miles km).
Voucher specimens are being deposited the University of
at
Northern Colorado Herbarium Greeley (gree), the University
at
Moun-
of Colorado Herbarium Boulder and Rocky
at (colo), the
Herbarium Laramie
tain at (rm).
Dan Moore
Special thanks are given to Bach and John for their
assistance.
LITERATURE
CITED
Coulter, M. 888. Manual of Botany of Rocky Mountain Region. Ivison,
the
J.
1
New
Blakeman, and
Taylor, Co., York, N.Y. 452
pp.
DoRN,
R. D. 1988. Vascular Plants of Wyoming. Mountain West P Chey
Wy.
enne, 340
pp.
M.
FeRNALD. L. 1950. Grav'^i Manual of Rntanv Rth Amf>riran Book
f-H
New
York, N.Y. 1632
pp.
Gleason, H. a, 1952. The new and Brown of
Britton Flora the
Illustrated
Lancas
Lancaster Press,
655
Pa.
ter. pp.
AND
A. Cronquist. Manual
1963. of Vascular Plants of Northeastern
United Stales and Adjacent Canada. D. Van Nostrand New York,
Co.,
Inc.,
N.Y. 810
pp.
Harrington,
H. D. 1954. Manual of the Plants of Colorado. Sage Books,
Denver: 666
pp.
Mulligan, and
G. A. A. Calder. 1964. The genus Subularia (Cruciferae).
J.
Rhodora
127-135.
66:
Rydberg,
a. Rocky
P, 1917. Flora of the Mountains and Adjacent Plains.
Steinman and
Foltz, Lancaster, Pa. 1110
pp.
W.
Weber,
A. Rocky
1976. mountain Colorado Associated University
flora.
—
Press. Boulder, Co. 479
pp.
1990. Colorado Western
Flora: Slope. Colorado Associated University
.
Press, Boulder, Co, 530
pp.
990. Colorado Flora: Eastern Slope. University Press of Colorado,
1
Niwot, Co. 396
pp.
Harmon—
Nelson and
157
1993] 5'wZ)M/ar/fl
—
AND WiTTMANN.
R. C. 1992. Catalog of the Colorado Flora: 3 Biodivcrsity
Baseline. University Press of Colorado, Niwot, Co. 215
pp.
DEPARTMENT
OF BIOLOGICAL
SCIENCES
ROSS
228
NORTHERN COLORADO
UNIVERSITY OF
t
CO
GREELEY,
80639
t
I
r
t