238 



A diminutive species, hardly to be compared witli any other of this 

 country. — AsA Gray. 



ISTear the banks of the Eio Grande, where the Los Piiios trail begins 

 to ascend the Sierra Madre. September. 



Brickellia linifolia, D. C. Eaton, King's Rep., p. 137. 

 Common in Southwestern Colorado. 



Briokellta microphtlla, var. scal)ra. Gray, Proc. Am. Ac, xi, 74. 



Foliis parvulisrigidioribuspapilloso- vel hirtello-scabris ; pappo tantum 

 16-20-chaito. 



Very common upon the sandstone-rocks of the Mesa Verde. Also 

 collected by Dr. Parry. 



Aster 2s"oy^-Angli^93, L. 

 Caiion City. 



Aster pauciflorus, ]S"utt. 



Growing about a warm soda-spring in the Animas Valley. In this 

 species, the pappus separates readily from the achenium, with the 

 bristles slightly connected at their base. 



Aster Coloradoensis, Gray, new species, Proc. Am. Acad., xi, 76. 



Machjer ANTHER A sed perennis, nanus, tomentuloso-canescens ; cau- 

 libus in caudice lignesceute confertis plurimis monocephalis ; foliis imis 

 spathulatis, summis fere linearibus, omnibus argute dentatis, dentibus 

 spinuloso-setiferis ; iuvolucri hemisph?erici squamis pluriserialibus sub- 

 ulatis laxiusculis ; ligulis 35-40-linearibus j)urpureis elougatis ; acheniis 

 brevibus turbinatis creberrime cauo-villosis. 



Found in the mountains of Northern Colorado by nearly all collectors, 

 and passed over as a form of a species of Maclicnanthera. 



Southwestern Colorado, San Juan Pass, 12,000 feet altitude. 



Erigeron STEN0PHYLLU3I, var. tetrapleurum, Gray. 

 In rocky localities of the Mancos Canon and Mesa Verde, 5,500 feet. 



Erigeron flagellare, Gray. 

 Canon City and Southwestern Colorado. 



Erigeron BiGELOYii, Gray, Bot. Mex. Bound., 78. 



Flats of the San Juan Valley, 5,200 feet. 

 TowNSENDiA Fendleri, Gray. 



Wet Mountain Valley and Huerfano Creek. 



TOWNSENDIA INCANA, l!s'utt. 



Mesas of Southwestern Colorado. 



ToWNSENDIA STRIGOSA, iSTutt. 



Flats of the San Juan Valley, 5,000 feet. 



BiGELOYiA Wrightii, Gray. 



San Juan Valley, 5,000 to 4,000 feet. 

 Grindelia microcephala, DC. 



Mancos Valley, 7,500 feet altitude. 

 Aplopappus Nuttallii, T. & G. 



Mesas near Rio Mancos, 7,000 feet altitude. 



Aplopappus lanceolatus, T. & G. 

 Near lake of San Luis Valley. 



