BOTANICAL NOTES. 269 



the perianth rotate — at least until after flowering it 

 folded itself round the akene. Specimens nearly as large 

 as those described, have been collected at Tehachapi Pass. 



E. riibescens Greene, which also has "filaments villous at 

 base," differs in no way from the ordinary form of nudum, 

 with glabrous involucres, and more or less fistulous stems, 

 except in having flowers of a deeper rose-color than usual. 

 It is, however, found in paler and even white forms on the 

 same island, as is shown by Mr. Brandegee's specimens, 

 and an almost identical form was found by the writer near 

 the Klamath River, in Siskiyou county, with not " sulphur" 

 but bright yellow flowers. 



E. arhorescens Greene, and E. giganteum Watson, are 

 the luxuriant island forms respectively of E. fasciculatum 

 Smith, and E. cinereum Benth., differing in no way from 

 some of the mainland forms of these species, except in hav- 

 ing wider leaves and a more diffuse inflorescence. 



