VoL. 5] Vegetatzon of the Colorado Desert. 153 
Eriogonum angulosum Benth. 
Eriogonum Palmeri Watson. 
Eriogonum fasciculatum polifolium (Benth). 
Eriogonum phyllanthum Benth. 
Eriogonum inflatum Torr. 
Eurotia lanata Moq, 
Grayia polygaloides H. & A. 
Euphorbia schizoloba Engelm. 
Luphorbia albomarginata 'T. & G. 
Quercus chrysolepis Liebm. 
Arceuthobium divaricatum Engelm, 
Ephedra Nevadensis Watson. 
Pinus monophylla ‘Torr. & Fremont. 
Juniperus Californica Utahensis Engelm. 
Calochortus Nuttallit 'T. & G. 
Yucca Mohavensis Sargent. 
Agave sp. 
Pellea Wrightiana Hook. 
Cheilanthes Fendleri Hook. 
Notholena Parryi Eaton. 
Notholena Newberryi Eaton. 
Notholena tenera Gillies. 
Stipa coronata Thurber. 
Melica frutescens Scribner. 
Sitanion sp, 
Poa, two species. 
NOTES ON THE VEGETATION OF THE COLORADO 
DESERT. 
BY T. S. BRANDEGEE. 
The Colorado Desert is a name given to an extent of land situ- 
ated between the eastern base of the mountains of San Diego and 
San Bernardino Counties and the Colorado River. On the north 
it merges into the Mojave Desert, without any well-defined di- 
viding line, and on the south extends a short distance into Lower 
