1902] BRIEFER ARTICLES 67 
hole, Uinta co., Wyoming. It occurred in the bed of a drying-up marshy 
lake. 
nium obtusatum, n. sp.— Bulb rather thick, 3-5™ long, 
deeply imbedded in the soil: leaves oblong-elliptical, 1o—-20™ long, 
3-5™ wide, obtuse but usually apiculate, never mottled: scape stout, 
usually 2—-3-flowered (1-5): perianth segments pale yellow, drying with 
a purple tinge (in the field drying white), 2.5—3.5°" long, 6-15"" wide, 
usually reflexed: filaments dilated at the base and tapering gradually 
to a point at the anther; anthers 5—8™" long, dark purple: stigma 
deeply 3-lobed ; style very slender, usually equaling or exceeding the 
stamens. 
This species is most closely related to £. grandiflorum, from which it dif- 
fers in its very broad, obtuse leaves, its pale yellow and purple-tinged (at 
least when dry) flowers, its shorter, dark-purple anthers, and its dilated fila- 
ments. It probably has also been referred to E. Hendersoni, but this is out 
of the question since that calls for mottled leaves, purple perianth segments, 
fleshy subacute auricles at the base of the inner perianth segments, the two 
scales subglobose-inflated, very slender attenuate filaments, and a shortly 
3-lobed stigma (ours deeply 3- lobed), none of which characters £. obtusatum 
possesses. It is barely possible that, in large part, the Erythroniums of Mon- 
tana, as well as those of northern Wyoming and adjacent Idaho, are to be 
. included in this species. 
Two collections of it are at hand: Yellowstone park, Glen creck: 1889, 
Aven Nelson and Elias N, elson, no. 5606 (type); Idaho, Continental divide. 
1899, same collectors, no. 5480 (co-type). 
: _Erythronium parviflorum (Wats.).—A low iat with opposite leaves: 
bulb slender, 3-5 long: scape slender, ro—20™ long: leaves —s. a 
: tapering gradually to acuteness at both ends, ro—-15™ long, 3-4™ wide: __ 
flowers rarely more than one, the peduncles abruptly curved in the form 
2 peceprat crook: perianth segments broadly lanceolate-acuminate, 
es g, about 1° wide, bright yellow with a very pale greenish base, Z 
| reflexed: filaments slender, 1-1.5°" long; anthers short, a 
: lighter than the petals : style clavate : —_ and esc broadly : 
g to even oval, 2-3" long. 
ey eee ee eens Ok eae SREY te OO SiC MN IAIN RI ee Sear OE Te Re eRe EER POE rie A AiR aa ee Me Nye seine ge Pee RS 
: differs from £. grandiflorum ical in bene Ee 
smaller bright yellow flowers with light | colored centers, its” 
iftorum Wats. is dary indefinite and incompl , but 
refers to the * above a which i is 5 well Ayia! * ames rank. 
