239 



APLOPAPPUS ARMERIOIDES, Nutt. 



Mesas of Southwestern Colorado, 7,000 feet. 

 APLOPAPPUS GRACILIS, Gray, Plant. Fend., 76. 



Mancos Plains, 7,500 feet altitude. 

 BACCHARIS WRIGHTII, Gray, Plant. Wright, 101. 



Soda Spring Ledge, Canon City. 

 DICORIA BRANDEGEI, Gray, Proc. Am. Ac., xi, 76, new species. 



Diffusa, pube substrigulosa cinerea ; foliis lanceolatis obtusis subiu- 

 tegerriuiis ; capitulis laxe racemoso-paniculatis parvis ; involucri squama 

 interna florem fcemineum fulcrante unica casteris haud longiore achenio 

 oblongo turgido margine calloso-dentato subdiuiidio breviore. 



An interesting accession to the genus, requiring considerable modifi- 

 cation of the character. 



Common along the San Juan, between McElrno and Eecapture Creeks. 



OXYTENIA ACEROSA, Kutt., PI. Gambell, 172. 



Very abundant in the dry gulches running into the San Juan at about 

 4,500 feet altitude. 



EXCELIA FRUTESCENS, Gray, Proc. Am. Ac., viii, 657. 

 Kocky edges of mesas, Southwestern Colorado. 



ENCELIA MICROCEPHALA, Gray, Proc. Am. Ac., viii, 657. 



San Juan Valley, 4,500 feet. 

 HYMENANTHERUM (LOWELLIA) AUREUM, Gray, Plant. Fend., 89. 



Canon City, Colorado Springs, Pueblo, and on the Huerfano. 

 WYETHIA SCABRA, Hook., Proc. Am. Ac., viii, 655. 



La Plata Valley, 5,000 feet ; base of Cariso. 

 WYETHIA ANGUSTIFOLIA, Nutt. 



Valley of Los Pinos Creek, 8,000 feet. 

 BALSAMORHIZA SAGITTATA, Xutt. 



Mesas of La Plata and Los Pinos Creeks, 8,000 feet. 



ACTINELLA TORREYANA, Gray. 



Mesas of Southwestern Colorado common. 

 HYZVIENOPAPPUS FLAYESCENS, Gray, Plant. Feud., 97. 



San Juan Valley, 4,500 feet altitude. 

 HYMENOPAPPUS LUTEUS, Nutt. 



San Luis Valley. 

 SCHKUHRiAiXTEaRiFOLiA,var.o&Zo^z/oZia, Gray, Proc. Am. Ac., ix, 199. 



Hovenweep, McElmo common 4,500 to 6,000 feet. 

 SCHKUHBIA NEOMEXICANA, Gray, PI. Feud., 96. 



Eio Grande Valley, near Del Xorte plants small, not 2 inches high. 

 ARTEMISIA BIENNIS, Willd. 



!NTear Canon City and Parrott City. 

 ARTEMISIA BIGELOVII, Gray. 



Abuudant in the Arkansas Valley. 



