//( /j<ih'c(r ()/' Xorl/t Amcrlni. 7U 



'"). R. Hallii Aust. Size, sporogoninm iind geiienil luihit 

 like the last: loaves more incurved at the apex; inner involucre 

 larger, elliptic-oblong, si;l)inflated, narrower at the apex, the 

 mouth often somewhat fleshy; involucral leaves smaller, more 

 equally l)ilol)ed. 



7/a/>.-Saleni, Ore. {Hall). 

 Bib.— Tovrey Bull. VI, li». 



(). R. Xalapensis Mont. Stems procumbent, densely 

 jiinnately branching, flaccid; leaves densely imbricate, orbicu- 

 lar, obtuse, complicate, somewhat inflated at base, the lobe 

 broad, subrotund, produced above the stem, the margin undu- 

 late, the base acutely excised and somewhat adnate to the stem : 

 sporogouium on a terminal or lateral branch; inner involucre 

 elongate, funnel form, the mouth compressed, obsoletely crenate. 



Hub. — On wet rocks, Tallulah Falls, Ga (SullivcDd, Lesi/uerea.c). (.Eu.) 



7^/6.— Syn. Hep. p. 255. 



Ex.nc. — Hep. Bor.-Amer. No. 88b. 



** Leares loosely imhricafe. 



7. R. Sullivanti Anst. Stems close, subparallel, iml)ri- 

 cate-caespitose; branches short, diverging; leaves subimbricate, 

 flaccid, rotund-oval, falcate, convex, more or less decurved at 

 the apex, abruptly complicate ventrally at the base, the margin 

 subrepand-dentate, the inferior rounded and carinate, the lobe 

 rather small, subinflated at the apex, obtusely triangular or 

 semicircular-rotund, the inner margin adnate to the stem and 

 parallel with it; sporogony j)hase unknown. 



Hub.— On rocks in mountain regions; Ga. (Snllirunt, Lesi/aeretu). 

 Bib— Torrey Bull. A'l, lit. 

 Kttiic.—llep. Bor.-Amer. No. 88c. 



8. R. spicata Aust. Stems short, prostrate, strongly 

 innovate-branching; leaves semivertical or subascending, broad- 

 ly obovate, obtuse, entire, inflated at the base, very obtusely 

 complicate for a short space then bilobed, the lobes convex on 

 l)oth sides, the ventral smaller l)y half, triangular-ovate, ol)tuse, 

 adnate to the inner margin of the stem; leaves of the branches 

 smaller, more inflated at the base; inner involucre oblong from 



