voL. 5] Flora of the Providence Mountazns. 149 
Acacia Greggit Gray. 
Prunus fasciculata Gray, Very abundant. 
Luetkea cespitosa (Nutt). f 
flolodiscus discolor (Pursh). 
Coleogyne ramosissima Torr. 
Cercocarpus intricatus Watson. Leaves narrow and very pu- 
bescent. 
Cowania Mexicana Don. Flowers white or cream color. 
Cowania Mexicana var. dubia. Stamens much less in number 
than in the typical species; carpels two or three; tails of the fruit 
short, not plumose but covered with short, dense, spreading, 
bristle-like hairs. This form was also collected by Dr. C. A. 
Purpus on Morey Peak, Nevada, in 1898, and he considered it a 
hybrid between Cowania and Purshia. Prof. A. M. Jones in- 
forms me he has noticed it, and supposed:it to be a depauperate 
form of Cowania Mexicana. It needs study in the field to arrive 
at its true botanical status. — 
Fallugia paradoxa Endl. 
Amelanchier alnifolia Nutt. 
Fleuchera rubescens 'Yorr, 
Cotyledon sp. 
@nothera chameneriotdes Torr. 
CGinothera cespitosa Nutt. 
Gaura coccinea Nutt. The specimens are without fruit but are 
evidently perennial. 
Mentzelia albicaulis Doug}. 
Mentzelia levis 'T. & G. 
Echinocactus cylindraceus Engelm. 
Cereus Engelmann Parry. 
Cereus Mojavensis Engelm. 
Opuntia chlorotica Engelm. & Big. 
Opuntia rutila Nutt. 
Cynomarathrum Parryt C. & R. 
Garrya Veatchit flavescens C. & EB. 
Symphoricarpos longiflorus Gray. 
Galium Aparine I,. 
Galium angustifolium Nutt. Too young. 
