CATALOGUE. 65 



This is a strikingly showy plant ; stem rises gracefully to a height of 5 feet 

 often, and is crowned with a cluster of scarlet mottled flowers. 



The lax, scattering arrangement of the leaves is in striking contrast to 

 the usually more crowded arrangement in E. asperum. Judging from the 

 description in Flora of North Am. T. & G. p. 95, I should think its 

 nearest affinity would be E. datum, Nutt. MSS. Still it appears distinct 

 from this, all the more probably so, as the only points at which it was 

 taken were Camp Grant, Ariz., and Mount Graham, near by, but 5,000 

 feet higher, where it had developed some local peculiarities without bring- 

 ing it any nearer known species. The stem of the mountain plant was 

 more light, airy, leaves smaller and more numerous, and pods longer, but 

 with essentially the habit of the same species at the foot of the mountain. 



I am loth to name a new Erysimum, for reasons which are apparent to 

 all who have studied the genus. Still, this seems too well marked a species 

 to pass it b} r . 



Thelypodium integri folium, Endl. — South Park, Colorado (645.) 

 Nevada and Utah. 



Thelypodium linearifolium, Gray. — Very smooth, 3°; leaves few, 

 linear or linear-lanceolate, sessile, 2-3' long, 2-3" wide, slightly glaucous; 

 petals purplish, with claws twice as long as the sepals ; style very short ; 

 seeds immarginate, oblong. (154.) Pescao, N. Mex. 



Thelypodium sagittatum, Endl. — Carlin, Nev. 



Thelypodium longifolium, Watson. (Streptantlms micranthus, Gray, 

 PI. Fendl. p. 6.) — Stem slender, 2°, roughish below, glabrous above; flow- 

 ers 1-2" long ; leaves hirsute, somewhat toothed, or lower leaves distinctly 

 dentate; pods erect or pendulous, terete. Sanoita Valley, Arizona. (610.) 

 Altitude, 6,500 feet. 



Thelypodium Weightii, Gray (PI. Fendl. p. 7).— Biennial "?, 2-3° 



high; smoothish leaves, narrowly lanceolate ; lower ones pinnatifid, deeply 



dentate or even sub-entire ; upper ones sub-entire or entire. All tapering 



into petioles, upper ones 2" wide, 1-2 J' long; pedicels in fruit £-§' long, 



spreading. Pods erect, or nearly so, li-2^' long, filiform. Petals white, 



clawed, a little longer than the sepals. The aspect of the plant is peculiar 



from its densely spicate flowers, leaving- a mass of long, thread-like pods at 

 r> hot 



