Hegaticce of North Amm't-a. {7 



I'ar. Californica Aust. MS. Dark or brownish red; stems 

 somewhat irregularly branched; leaves obliquely ovate, obtuse 

 or acuminate-apiculate, convex, decurved, with sometimes a few 

 firmer and deeper colored but not enlarged cells scattered or in 

 an oblique central row; amphigastria obovate, emarginate, flat 

 or with recurved margins toward the apex; involucral leaves 

 often connate with the amphigastria to the sinus, the lobes 

 entire, obtuse or acute, the lower often narrow, channeled and 

 somewhat contorted, with one or more hairs on the margin 

 near the base; inner involucre oblong, triquetrous, strongly 

 keeled below, the mouth usually emarginate. (F. Nisquallensis 

 Aust. Hep. Bor.-Amer. No. 108, not of Sulliv., F. tamarisci ( ?) 

 of Bolander's Cat., F. uncijiom var. Californica Grottsche MS. 

 (?) of Bolander's Cat.) 



Hob. On rocks and on the bark of spruce and larch trees; common 

 in the Atlantic States ; the var. on rocks near San Francisco, Cal. (Bolan- 

 der) and along the coast 



*Bib. Syn. Hep. p. 441 (sub F. Asagrayana). 



Delin. Sulliv. Mosses U. S. t. VII. 



Exsic. Muse. Alleghan. No. 266; Hep. Bor.-Amer. No. 107, 108. 



JJ Leaves oblong from a narrowed base. 



17. F. fraligifolia Tayl. Stems procumbent, subpin- 

 nate, the branches flattened, alternate, somewhat remote; 

 leaves subimbricate, ascending, oblong-rotund from a nar- 

 rowed base, recurved, entire, marked with a moniliform line, 

 the auricle oblong-galeate ; amphigastria obovate-rotund, plane, 

 appressed, bifid at the apex, entire or angulate at the margins; 

 inner involucre obovate-cordate, concave dorsally, unicarinate 

 ventrally, smooth; involucral leaves subequilobed, obtusely 

 few toothed. ( F. polysticta Mont., F. Sullimntice Aust.) 



Hob. On trees in cedar swamp near Urbana, 0. (Sullivant). (Eu.) 

 Bib. Syn. Hep. p. 437; Hep. Europ. p. 28; Torrey Bull. Ill, 16; 

 VI, 306. 



ff Texture of the leaves uniform. 

 J Amphigastria double the iri<Hli of the stem. 



18. F. Donnellii Aust. Monoecious, reddish, very 

 small; stems with long black hairs interwoven, usually pin- 

 nately or somewhat clustered branching; leaves ovate-rotund, 



