62 BOTANY. 
1874, I had regarded this as an unusual form of A. hirsuta. Twin Lakes, 
Colorado (650) 
Arasis Drummonpu, Gray.—South Park, Colorado. (655.) 
Arasis Hotseitu, Hornem.—Common and variable. Colorado and 
Nevada. 
CaRDAMINE CorDIFOLIA, Gray.—1-2°. Generally erect, from a fibrous 
root, which not unfrequently is in the water; leaves all petioled, cordate in 
outline, irregularly repand-dentate or sinuate, sparingly ciliate; siliques 
erect, twice as long as the pedicels. Common in Colorado at 10,000 feet 
altitude, in swamps and mountain streams. (608, 609, 610.) 
Vesicaria Lupoviciana, DC.—Hoary throughout, with a stellate 
pubescence, erect, 6-10’ high, usually branching; root-leaves spatulate ; 
stem-leaves linear to linear-lanceolate, all obtuse; flowers yellow; petals 
obovate, one-half longer than the sepals; pods oval, somewhat inflated, 
rather shorter than the style; pedicels 6-9” long. Colorado. (641.) 
Vesicaria Montana, Gray.—Colorado. (647.) By some oversight, I 
transposed the labels of these two species in distribution of the collection 
of 1873. 
Puysaria pipymMocarpa, Gray.—Alpine and sub-alpine in Colorado. 
(642, 648.) The Expedition has it also from Nevada and Utah. 
Drasa aupina, L.—A very attractive little perennial found in Colorado 
at 10,000 to 13,500 feet altitude; its favorite habitat being above timber 
line. (646.) 
Drasa aurea, Vahl.—Pubescent, erect ; stem usually quite leafy; leaves 
lanceolate, acute, entire or sub-entire; siliques lanceolate, acute, nearly 
twice as long as the pedicels, hairy and more or less twisted ; style 4” long; 
petals yellow. A very variable species, of extended range. The Expedi- 
tion has it from Colorado, New Mexico (Loew 633 and 634); and from 
the higher mountains of Arizona, the var. stylosa of Gray (1111). 
Draza streProcarpa, Gray.—Alpine in Colorado, along with aurea. 
My specimens furnish a singular example of transposition of characters ° 
usually reliable in distinguishing between these species; 7. €., aurea and 
streptocarpa. The specimens which have the fruit most characteristic of 
streptocarpa are in other respects most like (generally including length of 
