^OME GENERA OF EAPINE^UK 133 



12. P. rENTACH,ETA. Steplianomevia peniacha^ia, Eaton, 

 Bofc. King Exp. 199. t. 20 (1870). Western Nevada ; also iu 

 nortliern Arizona and New Mexico by the writer. Very near 

 tlie last ; quite like it, indeed, in all points excepting the 

 reduced number of bristles to the pappus. 



13, P. Sghottil Hemijptilmm Scholtii, Gray, Bot. Mex, 

 Bound. 105 (1859). jOn the Gila Eiyer, southern Arizona ; 

 only once collected and that many years ago ; the pappus 

 paleaceous rather than plumose-bristly, palea sparsely plu- 

 mose at summit. ^ 



11. P. Thurberi. SlGphanomeria Thurha% Gray, Mem. 

 Am. Acad, v. 325 (1854). New Mexico and Arizona. 



15. P. LACTUCINA 



Proc 



Am. xlcad. vi. 552 (1865). A low leafy species of the Sierra 

 Nevada at middle or hi^h altitudes ; the heads few and the 

 whole aspect of the plant that of a small Lactuca. 



16, P. ciGHoniACEA. Stephanomeria cichoriacea^ Gray, 

 I.e. Southern California, in the Coast Kanges chiefly ; most 

 abundant on some of the outlying islands. A stout, coarse, 

 usually tufted plant, having little in common with the types 

 of the desert regions, except the technical character of a 



plumose pappus, * 



Enumeration of the North American Loti. 



None but American botanists have altogether excluded the 

 genus Loins from the American flora. Those celebrated 

 authorities in Europe who have admitted a kindred genus, 

 Tlosackia, as embracing a part of our species, have always 



