33 



row to accord with tlie specimen I have from collection of Hall and 

 Harbour, but the lower petals are so decidedly those of D. elatum 

 that I am constrained so to name it. (96.) 



D. Menziesii, DC. Snake River. June. (97.) 



AcoNiTUM NASUTUM, Fisch. Comparing plants of the present collec- 

 tion with those of the same species in collection of Hall and Harbour 

 I find them shorter, more leafy, with larger flowers, and much nar- 

 rower lobes to the leaves. (98.) 



AcT^A SPICATA, L., var. Aeguta, Torr. Flowers absent. Pedicels 

 vary from less than a quarter to more than half an inch in length in 

 the fully-formed fruit. There is no perceptible thickening of the ped- 

 icel with age, and this I take to be the most reliable characteristic 

 furnislied by the frnitiqg specimens. 



Thalictbum Almnum, L. South Park ; altitude, 10,000 feet. Tvpical 

 specimens large. (94.) 



T. Fendleei, Engl. South Parkj altitude, 10,000 feet. Only female 

 specimens obtained. (93.) 



BEEBERIDACE^. 



Bbrberis Aquifolium, Pursh. West of the main range, on Snake 



Eiver. June. (57.) 



FUMAEIACEJ5. 



CoEYDALis AUREA, Willd., var, CUEVISILIQUA, Eng. Everywhere 

 common in the mountains, and flowering from May through Julv. 



CEUCIFER^. 



Nastuetium siNUATU^r, mitt. (618.) San Lais Valley, on the alka- 

 line flats ; leaves absolutely coriaceous though beautifully and reon- 

 larly pinatifid. 625 is from Apex; like the other, though with much 

 thinner leaves. 



N. OBTUSUX, iSTutt. Twin Lakes. (617.) 

 N. PALUSTRB, DC. Twin Lakes. " (627.) 



■AL 



(626.) 



San Luis Valley. September. 



Aeabis hirsuta, Scop. South Park. Twin Lakes. (650, 652.) 

 A. Drummondii, Gray. South Park. July. (655.) 

 A. RETEOFEAOTA, Grab. Common and variable. 

 Cardamine oordifolia, Gray. Clear Creek and South Park. fCOS 

 609, 610.) ^ ' 



Vesicaria Ludoviciana, DC. Clear Creek Caiion. June. In flower. 

 (6i7.) Subalpine. 



V. MONTANA, Gray. From dry plains of South Park. With straighter 

 pedicels, smoother and more oblique fruit than the specimens' fur- 

 nished by Hall and Harbour. (611.) 



Physaria'dIdymocaepa, Gray. Clear Creek and South Park Alnine 

 and subalpine. (642,618.) 



Draba alpina, L. South Park ; at from 12,000 to 13,500 feet elevation 

 (646.) July. 



D. aurea, Vahl. Alpine woods. July. (633, 634.) 



D. streptocarpa, Gray. Alpine, along with aurea. My specimens 

 furnish a singuhir example of transposition of characters usually reli- 

 able, in distinguishing between these Si^ecies; i. e., aurea and stre^to- 



3b 



