680 Colorado Plants. [ November, 
The following notes refer mostly to the species not mentioned 
im Porter and Coulter’s Flora: 
Argemone hispida Gray, is quite frequent along the base of the 
foot-hills below Denver with A. mexicana, but the stem is more 
hispid. 
Polanisia graveolens Raf., by the roadside at the entrance to 
Boulder Cañon. i 
Ampelopsis quinquefolia Mx., collected in Queens Cañon, dif- 
fers from the eastern form in the flowers being more persistent, 
the petals strongly reflexed, the leaves with larger and more 
acuminate teeth, and with remarkably falcate tips; the pedicels are 
more slender and drooping in fruit. 
Psoralea tenuiflora Pursh, on the plains, not common. 
Robinia Neo-Mexicana Gray, several clumps of trees on the side 
of the railroad in Southern Colorado. 
Crategus coccinea L., var. by the roadside at the entrance to 
Boulder Cafion: very conspicuous on account of the profusion 
of red fruit, the leaves are larger, the thorns stronger and often 
with rudimentary ones from their side. 
Saxifraga chrysantha Gray. Pike’s Peak, very scarce. 
Townsendia eximia Gray. Veta Pass, Southern Colorado, not 
common. 
Aster Pattersonii Gray. By the side of the railroad near Forks’ 
Creek station. 
Erigeron ursinum Eaton. Near Georgetown. 
Pericome caudata Gray. Dr. Gray in examining this plant 
detected one or two delicate awns, the presence of which is 
likely to affect the genus; he says: “ Pericome caudata has some- 
times in its fullest development one or two slender, sparsely hir- 
sute, rather deciduous awns surmounting the margins of the 
akene.” Hence this plant collected in Queens Cafion becomes 
variety, or rather forma, aristata. _ 
Helianthus Maximiliana Schrad. This plant is moving west- 
ward along the sides of the railroad. 
Artemisia arctica Less. Pike’s Peak. 
Arnica alpina, Collected by T. Meehan near Pueblo. 
Senecio Fendleri, Pike’s Peak trail. 
Senecio spartioides. Near Manitou Springs. 
Senecio rapiifolius Nutt. Clear Creek Cañon and Garden of 
the Gods. 
