45 



r 



P. ACTJMINATUS, Dougl. There is great variation Id the margins of the 

 calyx-lobes, and iu the degree to which these are ciliated, in my speci- 

 mens; also in the size and color of the flowers ; yet the specimens, 

 evidently, represent one and the same species. South Park and Clear 

 Creek. June. (302.) (303.) 



P. SECUNDiFLORTJS, Benth. Probably too near to P. acuminatus, Dougl. 

 South Park. August. Altitude, 10,000 feet. Sterile filament dilated 

 and densely bearded with long orange-colored hairs, which are deepest 

 in color at the apex of the filament. Bentham describes my specimen 

 neatly, (DC, Prod., X, p. 325.) (300.) 



P. ALBiDU^, Nutt. Sterile filament conspicuously bearded, and limb 

 pubescent within. (292.) 



P. HUMiLis, l!^utt. Manifest tendency in the cauline leaves to become 

 serrate j thyrse more lax ; bra(;ts larger; and altogether more luxuriant 

 specimens than the one 1 have from collection of Parry, Hall, and 

 Harbour, yet evidently the same species as their 387. South Park j 



high ground. 



P. G-LAUCUs, Grab., var. stenopetalus, Gray. (298.) Half-Moon 



Creek. Altitude, 11,000 feet. (297 is a thin form.) 

 P. CONFERTUS, Dougl., var. CCERULEO-PUEPUEEUS, Gray. South Park. 



July. Altitude, 10,000 feet. (293.) (291.) 

 Chionophila Jamesii, Benth. High alpine. Specimens much more 



luxuriant than those on which the description was founded. (332.) 

 MiMULUS Jamesii, Torr. Denver. June. (312.) 

 M. luteus, L. Twin Lakes. August. 10,000 feet. (313.) 

 M. luteus, L., var. alpjnus. Gray. Twin Lakes ; in brooks. (313 bis.) 

 M. FLORiBUNDUS, Dougl. San Luis Valley. September. (311.) 

 Gratiola VIRGI^^IA^A, L. San Luis Valley. September. (323.) 

 LmoSELLA AQUATICA, L. Twiu Lakes and San Luis Valley. (972, 



973,986.) ^ V J 



Synthyris plantaginea, Benth. Clear Creek and South Park. June. 



Altitude, 8-10,000 feet. (316.) 

 S. ALPiNA, Gray. South Park. 



Veronica AMERIOA^^A, Schweinitz. South Park. July. (336.) 



V. ALPINA, L. Mosquito Pass. Alpine. July. (332.) 



V. SERPYLLIFOLTA, L. (331.) (333 an exceedingly slender form from 



Twin Lakes.) 

 V. PEEEGRiNA, L. Twin Lakes. July. (330.) 

 V. PEKEGRiNA, L., var. DIFFUSA, Eotlirock. Much more branched, and 



with leaves resembling the bracts entirely ; flowers not seen ; friiit 



like the last, of which it is evidently but a variety. San Luis Valley. 



On alkaline flats. (335.) 



Oastilleia linari^folia, Benth. Twin Lakes. July: altitude, 

 9-10,000 feet. (288.) 



C. PALLIDA, Kunth. South Park. 10,000 feet. July. (285.) 



0. INTEGRA, Gray. Varies with leaves from linear to broadly lanceolate. 



(289, 290.) 287 is also probably a mere variety of the above. 



Orthogarpus luteus, J^'utt. Twin Lakes. Moist ground. Altitude 



9,500 feet. 



Ehinanthus crista-galli, L. (321.) 



Pedictjlaris Grcenlandica, Eetz. (P. sttrrecfa, Benth.) South Park. 



10-11,000 feet. (281.) 

 P. CRENITLATA, Benth. South Park. (283.) ■ 

 P. SuDETiCA, Willd. South Park. (279.) 



F. BRACTEOSA, Benth. Mosquito Pass. July. Galea evidently biden- 

 tate just under the apex. (284.) 



? 



