WEST AMBRIOAN CBirOIFBB-«). 81 



florescence, most 10 or 12-flowered ; bracts oblong-linear, slender- 

 pointed, none with woolly margin : corollas and achenes as in 

 the last. 



This is n. 1690 of the Death Valley Expedition from the 

 Sierra Nevada in Inyo Co., listed in the report as Bigelovia Bo- 

 landri, which type can not, I think, have been known by him who 

 made this reference ; and, in the U. S. Herb, the sheet was long 

 since placed in the cover of C. Parryi, which it is like in habit, 

 though different in character. 



Macbokbma BoLANDai. Linosyris Bolandri, Gray, Proc. 

 Am. Acad, vii, 354. Chrysothammis Bolandri, Greene, Eryth. 

 111,114. My remarks in Erythea, as to the seeming desirability 

 of removing this type to Macronema, seem now more than ever 

 forcible ; for, in looking over the numerous sheets of Macronema 

 discoidea now in the U. S. Herb., I detect something like a half- 

 dozen specimens of the Bolandrian shrub, some of them from 

 the original station, that have by others been taken for, and 

 labelled as M. discoidea. It is even hardly more than a sub- 

 species of this genus ; for it differs from that one with which 

 people so easily confuse it, by no clearer characters than those 

 of a rather narrower and more pointed leaf, and slightly nar- 

 rower heads more numerous and apt to be crowded together. 

 And there are two or three other forms under the aggregate M. 

 discoidea that might almost as well be distinguished as this one. 



Certain West American Cruciferae. 



The Calif ornian cruciferse in general, and perhaps more 

 especially that extensive list of species that have been variously 

 referred to Arabis, Strefianthus, Catclanthus, Stanfordia, and 

 Thelypodium have occupied a good share of my most careful and 

 critical attention during the last quarter-century. 



Fifteen years ago, having in preparation the Flora Francis- 

 cana, I could see no alternative between dividing the Streptanthus 

 series into two or three genera, or restoring to it Caulanthus 

 and Stanfordia ; and I decided in favor of the latter course. It 

 was not satisfactory ; and it has for some years seemed to me 

 Lkaflkts, Vol. i, pp. 81-88, Deo. 21, 1904, 



