868 PROCEEDINGS OF THE AMERICAN ACADEMY 



Gray, 1. c, excl. var, R. alismcEfolius, Benth. PI. Hartw. 295, as to 



the Eastern plant only, & Gray, Man. 41, not Gayer, — Canada to 



Georgia. The American analogue of R. Lingua. 



= = Strictly perennial, with thickened-fibrous and fascicled roots, 

 terrestrial : stems short, erect or assurgent, not rooting from nodes 

 above ground : mature akenes turgid, and with introrsely apical or 

 subapical rather short subulate beak. 



R. ALisM^FOLiDS, Geyer, fide Benth. PI. Hartw. 295, as to Geyer's 

 original and the Hartweg plant, but not the Eastern species, as is well 

 shown by Watson, Proc. Am. Acad. xix. 289. — Idaho to California. 

 R. Bolanderi, Greene, Bull. Calif. Acad. ii. 58, answers to the type of 

 this species. 



Var. ALiSMELLUS, Gray, Proc. Am. Acad. vii. 328, &c. The var. 

 montanus, Watson, Bot. King, is partly this, partly a larger form 

 which answers better to the robuster type of the species. The Asiatic 

 7?. Pseudo-Hirculus, Schrenk, which I had collated to this, is quite 

 different, and probably an entire-leaved form of R. pulcheUns. 



R. Lemmoni, Gray, Proc. Am. Acad. xi. C9. Has more turgid 

 and villous-pubescent akenes in an oblong head ; and the lower part 

 of the low stem is often villous. It has been found only in Sierra 

 Valley by its discoverer, Lemmon, and in S. Utah by Siler. Speci- 

 mens of the preceding have been distributed under this name, leading 

 to some confusion. 



H— H — (— -1— Terrestrial species, with at least some lobed or divided 

 leaves, and no stoloniferous rooting or creeping stems, except in 

 R. repens and R. septentrionalis. Under this head the remaining 

 species are disposed. 

 ■H- Calyx clothed externally with long and soft black or brown hairs : 

 arctic-alpine and low perennials, with solitary large flowers, none 

 with leaves divided to base. 



R. Macauleti, Gray, Proc. Am. Acad. xv. 45. Roots a fascicle 

 of fleshy fibres : leaves short-petioled, soft pilose or soon glabrous, 

 thick, varying from almost linear with truncate 2-3-dentate apex to 

 obovate-spatulate and obtusely 3-10-toothed : petals flabelliform, cren- 

 ulate, mostly half-inch long, deep yellow. — Also published in U. S. 

 Engineers' Keport, 1878, p. 1883, Ruffner's Expl., as R. nivalis. — 

 Alpine region of the Rocky Mountains in S. Colorado, at 11,700 feet, 

 Lieut. M'Coulpy., Mr. Pease. This is too near R. Altaicus, Laxm., 

 which is R. frigidus, Willd. and Reichenb. Ic. Crit. iii. t. 289, and 

 the R. sidphureus of some authors. IMature fruit is wanting. 



