1904] GOODDING.: SOUTHWESTERN PLANTS 55 
bunches with very few sterile shoots, by its remarkably viscid pubescence, 
elongated cymes, broader and thicker calyx lobes, and much shorter and 
more deeply cleft petals. 
Collected by the writer in the Uintah Mountains, Utah (no, 1246), where 
it grew in some profusion. 
‘ Draba valida, n. sp.— Perennial. with a tap root: stem usually 
single but much branched from the base; stem and branches 
somewhat rigidly erect, the main stem 1.2-2% high, exceeding 
the branches by 4-5°™; rather finely hirsute throughout: basal 
leaves numerous, 1.5—2°™ long, spatulate, obtuse, entire or 
coarsely toothed: stem leaves sessile, oblong, entire or occasion- 
ally coarsely two to four-toothed, 1-1.5™ long; calyx oblong, 
obtuse, 1.5-2™" long, sparingly clothed externally with long 
hairs: petals white, oval to obcordate and attenuate at base, 
2-3™™ long: pedicels erect, stout, 2-4™" long: pods oblong, 
4-7™™ long, clothed with short branched hairs: stigma almost 
sessile. 
The type (no. 1402) of the above species was collected by the writer at 
Dyer Mines, Uintah Mountains, Utah. 
/AMELANCHIER RUBESCENS Cinerea, n. var.—A peculiarly ashy - 
colored divaricate shrub, distinguishable from A. rubescens Greene 
by-the much denser pubescence on the leaves and inflorescence, 
by the nearly obtuse oval leaves which are acutely serrate to the 
base, and by the shorter more broadly campanulate calyx with 
linear acute lobes. 
Collected by the writer at St. George, Utah, May 13, 1902 (no. 780). 
/Cowania alba, n. sp.—A quite freely branched bush, 1.5-2.5™ 
high, with white bark and light colored wood: leaves 3~5-cleft 
at the ends and tapering to rather broad petioles, 8-11™ long, 
dark green above, somewhat viscid and barely tomentose beneath, 
edges strongly revolute and resinous-dotted, crowded at the ends 
of small branchlets which are scaly from the persistent stipules of 
previous years: flowers white, about 15™™ in diameter: calyx 
tube very narrowly funnelform, clothed with short silvery pubes- 
cence, usually slightly resinous-dotted (not glandular-tipped 
pubescence), strongly veined; lobes narrowly oblong, obtuse, 
strongly net-veined, 3™™ long: petals oblong, obovate, very irregu- 
