242 



GRAYIA BRANDEGEI, Gray, new species, Proc. Ain. Acad., xi, 101. 



Inerinis, sesquipedalis, leviter furfuraceo-cinerea ; foliis spathulato- 

 linearibus; thecis minoribus flavidulis oblato-orbiculatis quandoque 

 trialatis basi latissime retusis, alls subundulatis ; ovario basilari papu- 

 loso. 



Found only at the most western topographical station, San Juan 

 Valley, 3.200* feet. 



ALTERNANTHERA LANUGINOSA, Torrey. 



Pueblo and San Juan Valley. 

 AMBLOGYNE TORREYI, Gray, Proc. Am. Acad., 5, 169. 



Cafion City. 



ASCLEPIAS INCARNATA, L. 



Canon City. 



POLYGONUM CONVOLVULUS, L. 



Colorado Springs introduced. 



POLYGONUM HARTWRIGHTII, Gray, Proc. Am. Acad,, 1870, 249. 



Canon City. 

 POLYGONUM COARCTATUM, Dougl. 



Parrott City. 

 ERIOGONUM INFLATU^I, Torrey. 



San Juan Valley common. 

 ERIOGONUM SALSUGINOSUM, Hook. 



San Juan Valley common. 

 ERIOGONUM DIVARICATUM, Hook. 



San Juan and Mancos Valleys. 

 ERIOGONUM THOMASII, Torrey. 



Southwestern Colorado. 

 ERIOGONU3I RENIFORME, Torrey. 



Southwestern Colorado. 

 ERIOGONUM ACAULE, Nutt. 



San Juan Valley. 



ERIOGONmi RACE310SUM, Nutt. 



Common at 8,000 feet in Southwestern Colorado. 

 ERIOGONUX CORYMBOSUIVI, Benth. 



Slopes of the Mesa Verde. 

 ERIOGONUM CORYMBOSUM, var. divaricatum, T. & G. 



Slopes of the Mesa Verde. 



ERIOGONUM MICROTHECUM, Nutt., var. confertifolium, Benth. 



Southwestern Colorado. 

 ERIOGONUM MiCROTHEcmi, var. kptophyllum, T. & G. 



Southwestern Colorado common. 

 ARCEUTHOBIUM DIVARICATUM, Englm. 



Cariso and Mancos Mesas, 6,000 feet-parasitic upon Pinus edulis. 



