MOSSES AND LIVERWORTS. 191 







slightly, curved and exannulate capsule, conic operculum, slender pedicel and very long, narrow 

 calyptra, descending below the capsule and embracing the pedicel. It resembles small forms of 

 H. scitum, Beauv. and H. gracile, Br. & Sch., but differs essentially from both in its calyptra 

 and in not having an annulus. (Plate X.) 



H. NOTEROPIIILUM, Sulliv. et Lesqx. Muse. Bor.-Amer. exsiccat., n. 348; Sulliv. in Gray's 

 Manuel of Bot., '2d ed.,p. 478. Margins of small streams. 



H. SERPENS, Linn ; Amblystegium serpens, Bryol. Europ. AmUyst. monogr.,p. 9, t. 3. Common. * 



H. KIPARIUM, Linn.; Amblystegium riparium, Bryol. Europ. AmUyst. monogr.,p. 14, t. 8. / 

 Wet places, frequent. 



H. ADDNCUM, Hediv.; Bryol. Europ. Hyp. monogr., p. 35, t. 24. Grows with the last. t- 



H. MYOSUROIDES, Linn.; Isothecium myosuroides, Brid.; Broyl. Europ. Isothec. monogr., p. 7, ji 

 t. 2. Near San Francisco, dry woods. 



H. NUTTALLII, Wils.; Bryol. Brit. , pp. 334 and 339; Sulliv. and Lesqx. Muse. Bor.-Amer. 

 exsiccat., n. 3386. On decayed trees, south of San Francisco. 



H. OiiEGANUif, Sulliv. in Mem. Amer. Acad. of Arts and Sci., v. IV, n. ser.,p. 1*79 ; Crypto- * 

 gamia of the U. S. Expl. Expd., t. XIII, ined. In woods, on the ground, mostly in damp 

 localities. 



The collection contains five or six other species of hypnum ; but the specimens are too imper- 

 fect to admit of determination. 



HEPATIC^. 



FEGATELLA CONICA, Corda.; Nees. Hepat. Europ. IV, p. 181; Conocephalus vulgaris, Bischoff. 

 de Hepat. in Nov. Act. Acad. Nat. Cur. XVII 2, p. 1001, t. 69, /. 4. On wet rocks, and on 

 the ground near springs. 



FIMBRIARIA TENELLA, Nees. Hepat. Europ. IV, p. 271 ; Bischoff. de Hepat., I. c. t. 69, /. 11. 

 On dry ground, in shady places. 



EEBOCLIA HEMISPH^ERICA, Raadi.; Bisclioff. de Hepat., 1. c. t. 69, /. 1. Dry, shaded rocks. * 



DUVAIJA TEXERA, Gottsche. in G. L. and N. Synop. Hepat., p. 554 ; Marchantia tenera, Hooker 

 in Kunth. Synop. Plant., p. 45. Moist earth. 



ANTHOCEROS L^VIS, Linn.; G. L. and N. Synop. Hepat., p. 586. Springy, gravelly places. + 



METZGERIA FURCATA, Nees.; Jungermannia furcata, Linn.; Hook. Brit. Junger., t. 56. Damp, 

 mossy rocks. 



FOSSOMBRONIA pusiLLA, Nees.; Jungermannia pusilla, Hook. Brit. Junger., t. 69. Damp earth, 

 frequent. 





k 



