234 



MALVASTRUM LEPTOPHYLLUM, Gray, PI. Wright, p. 17. 



Valleys of the San Juan and La Plata. 

 SPH^ERALCEA EMORYI, Torrey, PL Wright, 1, 21. 



Valleys of the San Juan, La Plata, and Mancos. 

 THAMNOSMA TEXANUM, Gray. 



Soda Spring Ledge, Gallon City, 5,400 feet altitude. 

 GLOSSOPETALON SPINESCENS, Gray, PL Wright, ii, 29. 



Near Hovenweep Castle, 5,250 feet altitude. 

 KHAMNUS (FRANGULA) CALIFORNICUS, Esch. 



Valley of the Auimas, 6,500 feet altitude. 

 POLYGALA ACANTHOCLADA, Gray, new species, Proc. Am. Acad., xi, 



p. 73. 



Fruticulosa, bipedalis, ramosissima, subcinereo-pubescens, spinis gra- 

 cilibus arinata; foliis lineari-spathulatis rigidulis (lin. 3-4 lougis); flori- 

 bus subaxillaribus sparsis albidis lin. 2 longis pedicello basi bibracteato 

 parum brevioribus; alis obovatis sepalis creteris duplo niajoribus corol- 

 lam adsequantibus ; carina breviter cymbifornii nuda dorso unibonata. 



Growing upon a bluff side near the San Juan Biver in Utah, not far 

 from the Colorado boundary. 



LUPINUS SILERI, Watson. 



Trail between Parrott City and the Mancos, 7,500 feet altitude. 

 LUPINUS SITGREAVII, Watson, Proc. Am. Ac., viii,527. 



Common in Southwestern Colorado, 7,000 feet altitude. 

 TRIFOLIUM ERIOCEPHALUM, Xutt. 



Lost Canon and Parrott City, 8,600 feet altitude. 

 TRIFOLIUM BRANDEG-EI, Watson, new species, Proc. Am. Ac., xi, p. 



130. 



Dwarf, perennial, cespitose, and acaulescent, glabrous, the inflores- 

 cence slightly villous; stipules scarious; leaflets elliptic-oblong, thin, 

 acutish, entire, a half to an inch long; peduncles about equaling the 

 leaves ; flowers spicate in a loose naked head, purplish, seven lines long; 

 calyx-teeth lanceolate, acuminate, a little longer than the campanulate 

 tube ; ovary stipitate, 7-ovuled. 



A very showy species, common in the Sierra La Plata. 



HOSACKIA WRIGHTII, Gray, Plant. Wright, p. 42. 



Southwestern Colorado, 8,000 feet altitude. 

 DALE A LAN AT A, Spreng. 



Valley of the San Juan, 6,000 to 4,000 feet. 

 PETERIA SCOPARIA, Gray, PL Wright, p. 50. 



La Plata Valley. 

 ASTRAGALUS DIPHYSUS, Gray. 



Southwestern Colorado, 6,000 feet, 

 ASTRAGALUS BIGELOVII, Gray. 



Valley of the Mancos, 5,000 to 6,000 feet. 



ASTRAGALUS SUBCOMPRESSUS, new species. 



A. racemoso sect. Galegiformium admodum siniilis; deutibus calycis 

 brevioribus ; corolla ochroleuca; legumine falcato lateraliter compreso 



