43 



r 



AUTEMESTA DRA.CUNCULOIDES5 Parsh. Twin Lakes. (530, 531.) 



A. Canadensis, Miclis. (532.) 



A, TRTDENTATA, Nutt. Twiu Lakes. (431.) 



A. LuDOVioiANA, Nutt. Valley of the Upper Arkansas Kiver and San 



Luis Valley. (529.) (Var. 429.) 

 A. LuDOYiciANA, Xutt., var. Mexican A, forma tenuifolia, Gray. 



Eeniarkable; very likely a species. Sau Luis Valley. September. 



(539.) 

 A. FRiCriDA, Willd. Along with Apliyllon fasciculatum^ T. & G. Para- 

 sitic attachments from the latter, uniting the rootlets of the two. I do 

 not recollect to have seen this Apliyllon growing, except in the com- 

 pany of the Artemesia. (409.) 

 A. SC0PUL0EU3I, Gray. South Park. Alpine. (430.) 

 A. BOREALis, Pallas. South Park. Alpine. (535, 536.) 

 Gnaphalium strictum, Gray. San Luis Valley and Twin Lakes. 



(425, 427.) 423 depauperate. 

 G. PALUSTRE, :N"utt. San Luis Valley. (426, 428.) 



Antennaria Carpathica, R. Br. (208, 433, 434.) 

 A. DioiCA, Gaert. (435-445 all forms of the same species.) Common. 

 Thelesperma gracile, Gray. Denver, June. (540, 543.) 

 Senecio spartioides, T. & G. Valley of the Upper Arkansas Eiver. 



September. (589.) 

 S. LUGENS, Richards, var. foliosus, Gray. Twin Lakes and South 



Park. (567.) (587 the same, but less tomentose.) 

 8. TRIANGULARIS, Hook. Twin Lakes. July. (563.) 

 S. Andinus, ^utt. Twin Lakes. (564,565.) 

 S. AUREUS, L., var. BOREALis, T. & G. Verging toward crocensy 



Gray. (558, 566, 581.) (582, var, borealiSj with round radical leaves. 



585 same as form collected by Professor Gray at Empire. 586 nearly 



582.) 

 8. AUREUS, L., var. alpinus. Gray. Buffalo Peak. (577.) 



S. AUREUS, L,, var. averneri^efolius, Gray. (588.) 



S. CA]N^uS, Hooker, var. Union Creek Pass. (559.) 



S-CERNUUS, Gray. Twin Lakes. July. (583.) 



S. Fendleri, Gray. Twin Lakes. (557.) 



S. EREMOPHILUS, Eichards. Narrow-leaved. San Luis Valley. (561.) 



S. Fremontii, T. &. G. (571,572,576.) Common at 11,500 feet and 



upward. 

 S. SoldenellA, Gray. South Park; altitude, 12-13,000 feet. (573, 



575.) 



S. BiGELOVii, Gray, var. monocephala. Twin Lakes. (587, 674.) 



S. LONGILOBUS, Bcuth. (073.) 



ViLLANOVA chrysanthemoides, Grav. Twin Lakes. Cottonwood 



Creek. (479, 545.) 



Tetradymia canescens, DC, var, inermis, Gray, Sau Luis Valley. 



(449, 855.) 



Arnica alpina, Laest., var. angustifolia, Vahl. Clear Creek. June. 



(569.) 

 A. foliosa, N"utt. Twin Lakes. July.. (568.) 

 A. corbifolia. Hooker. Clear Creek. June. (570.) 

 Cnicus Parryi, Gray. Twin Lakes. (460.) 

 C. Drummondii, T. & G. Acaulescent. Twin Lakes. (461.) 

 C, Dru3IM0]N^dii, T. & G. Caulescent. (462.) 

 C. Arizoisicus, Gray. (463.) 



Malacothrix Fendleri, Gray. Bowlder. (466.) 

 Crepis runcinata, T. & G. San Luis Valley. (664.) 



