lf('/)((fic(t' of North A iHiT /'(•(/. 35 



densely paloueeous underneath; peduncle about 2.5 cm. high, 

 pale, naked, sulcate. 



Hab.—Vndor wet rocks, Cal. (Bolander). 

 Bib.— Fro. riiil. Acad. 1869, p. 229. 



IV. GRIMALDIA Raddi. 



Carpocephalum peduncled, 8-4-lobed, decurrent, hemi- 

 si)heric or conoidal, papillose and porose at the apex. Calyptra 

 rupturing by lobes. Capsule circuniscissile in the middle. 

 Androecium on the same or a different thallus, disciform, oval, 

 obovate or obcordate, immersed in the apex of the thallus, pap- 

 illose. Thallus thick, deeply canaliculate, dichotomous, inno- 

 vating from the apex, articulated, closely areolated and porose- 

 scabrous above, the thick keel covered with imbricated scales 

 often extending beyond the margin as a fringe. Epidermis very 

 thick. Gemma3 wanting. Named for I), (h-'nnahli, an Italian 

 botanist. 



1. G. barbifrons Bisch. Thallus linear-obcuneate, 0.6 

 — ] .3 cm. long, 3 — 4 mm. wide, 2-lobed at the apex, pale-green 

 with distinct white pores above, strongly involute when dry, 

 the scales often extending far beyond the margin and becoming 

 whitish; peduncle profusely paleaceous at the base and apex; 

 nionoicious, the androecium obcordate. (G. frac/ran.i Corda., 

 includes 6'. srsailis Sulliv. ) 



Hub.— rhin soil on rocks. la. (Horton), 111. {Hall), Tex. (Wright), 

 N. J. {Amtin), N. Y. iMiiiS Walerbury), Conn. (Eaton). (Eu.) 

 Bib.— Syn. Hep. p. 550 ; Hep. Europ. p. 156. 

 Delin.—SuWW. Mosses U. S. t. VII. 

 £'.i-.siV.— Hep. Bor.-Amer. No. 133. 



2. G. Oalifornica Gottsche, MS. is an unpublished spe- 

 cies from California. 



V. DUVALIA Nees. 



Carpocejihalum peduncled, hemispheric, entire, cavernose- 

 papillose above, concave and not decurrent beneath. Outer in- 

 volucre inti-amarginal. Inner involucre wanting. Capsule 

 deopt'rrulating above the middle. Andr.eeiuni suboi-ldeular. 



