274 CALIFORNIA ACADEMY OF SCIENCES. 



gins, shorter than the acnte inner ones: internal bracts 

 broadly spatnlate, scarious on the margins. 



E. gracillimum, Watson. Involucres few-flowered on slen- 

 der pedicels: perianth rose-colored: segments oblong, nearly 

 equal, often crenulate, internal bracts spatnlate, few. 



Tlie species was originally described from very small 

 specimens. It is often two feet in height. 



E gossypinum. O tie to two feet high, intricately branched, 

 becoming decumbent: stems obscurely angular: radical 

 leaves elliptic, somewhat woolly beneath, cauline in the 

 axils of small united bracts: upper bracts naked beneath, 

 woolly above: involucres on pedicels 1 — 6 lines long, turbi- 

 nate, cleft to the middle : segments oblong, obtuse, glabrous 

 without and densely long-villous within, about 5-flowered: 

 perianth pale rose-color: segments nearly linear, the inner 

 slightly longer and acute: internal bracts linear-spatulate, 

 lon<r-villous on the inner surface: stamens 9: akenes lenticu- 



o 



lar. 



Near Bakersfield, July, 1884. In appearance much like 

 the following species. The flowers are not to be seen without 

 dissection, being involved in a cottony tuft. 



E. denotatum. Nemacaulis denudata and N. foliosa, Nutt. 

 PL Gamb. N. Nwttallii, Gray. Stems very slender, terete; 

 leaves spatulate, densely woolly: involucres sessile, divided 

 to the base; segments acute: bracts linear spatulate, very 

 slender, densely clothed with long wool on the inner surface. 



I have not felt myself at liberty to disregard the earliest 

 specific name, which, although not strictly correct, is as 

 much so as many others of the genus. 



E. Greggii, Torr. & Gray. This species I have not seen, 

 and it is included in the section from the description only. 



CHORIZANTHE. 



C. pungens, Benth. var. nivea. Very slender, decumbent, 

 sparingly villous: margins of the involucre broadly scarious 

 perianth yellow, with white margin. 



