1921] 
PAYSON—MONOGRAPH OF THE GENUS LESQUERELLA 213 
May 30, 1900, Nelson 6954 (Mo. Bot. Gard. Herb., Rky. Mt. 
Herb., U. S. Nat. Herb. in part, and Geo. Osterhout Herb.); 
Freezeout Hills, July 11, 1898, E. Nelson 4854 (Rky. Mt. Herb.). 
With the exception of one collection (Nelson 6954), typical 
condensata is recorded only from western Wyoming. Since no 
other collections of condensata have been made at Laramie and 
since it is quite possible that the collections from the western 
and eastern parts of the state were inadvertently mixed in the 
distribution, it is assumed that condensata is confined to western 
Wyoming, and that the variety laevis occurs in eastern Wyoming 
and southern Montana, but not within the range of typical 
condensata. Due to an unfortunate error in distribution the 
type collection of the variety laevis was labelled Draba glacialis 
and consequently may be located under that name in herbaria. 
L. condensata and its variety differ from alpina chiefly in the 
much-reduced stems and in the constant reduction of their 
ovules to two in each cell. The variety laevis is distinguished 
from the typical form by the character of the pubescence, and 
although this at first may seem of slight consequence, it appears 
to be invariable and is so characteristic that the two may be 
easily separated without the aid of a lens. "These forms are two 
of a number of interesting pulvinate plants, not uncommon on 
the high plains of southern Wyoming, that give to the vegeta- 
tion an aspect quite alpine, an appearance that is always a little 
surprising at so low an altitude. 
42. L. Garrettii Payson.!' 
Perennial, stellate-pubescent throughout, stellae small, rays 
numerous, forked near the base, distinct or irregularly coherent; 
stems very slender, erect or decumbent, unbranched, 3-5 em. 
long; terminal bud apparently developing a fertile stem; radical 
leaves 1-3 cm. long, blade entire, obtuse, spatulate or narrowly 
elliptical, gradually narrowed to the very slender and much 
longer petiole; flowers 3-7; petals very narrowly spatulate, 
! Lesquerella Garrettii sp. nov., perennis humilis ube pomo meg undique 
argentea; caulibus tenuissimis erectis vel procumbens S s 3-5 cm. 
pedice llis erectis vel leviter sinuosis; siliculis subg obsit dio 4 mm. diametro 
stellato-pubescentibus, distincte stipitatis; stylis 4-5 mm. longis; loculis s daria 
funiculis con adnatis; seminibus immargina eU collected in Big Cotton- 
wood Canyon, Salt Lake County, Utah, June 28; 1905, by A. O. Garrett 1344 (Mo. 
Bot. IM "He rb.). 
