Cuticle at margin of the mouth of capsule splitting into about 16 scale- 

 like fragments which roll back and reveal the pseud-annulus, com- 

 posed of several layers of cells, and forming the thickened mouth of 

 capsule ; peristome rudimentary and adhering to the pseud-annulus, 

 or consisting of one or several rows of irregular filamentous teeth ; 

 endostome a conical tubular 32-plicate membrane, thickened along 

 the angles of the folds, and slightly twisted to the right. Spores 

 very small, spherical. 



Small as this genus is, the remarkable variation in the peristome has 

 led to its division into two sections Eubuxbaumia for B. aphylla, Polyodon 

 for B. indusiata the difference in the form and texture of the capsules also 

 affording an additional distinction. 



The actual presence of leaves was first noticed by Robert Brown 

 (Linn. Trans, xii, p. 583). 



CLAVIS TO THE SPECIES. 



Capsule depressed on upper surface, firm, with a thickened margin ; peristome one row of 

 short imperfect cilia. 



B. aphylla. 



Capsule ovate-oblong, thin, the cuticle loose and splitting up beneath ; peristome of four 

 rows of cilia. 



B. indusiata. 



i. BUXBAUMIA APHYLLA. L. 



Capsule pachydermous, glossy, depressed on the upper surface, 

 with a thickened margin. Peristome a single row of short, imperfect 

 teeth adhering to the inside of the margin of mouth (T. Ill A). 



SYN. Muscus capillacens aphyllos, capitulo crasso bivalvi BUXB. PI. min. cogn. cent. II, 8, 



tab. 4, f. 2 (1728). DILL. Hist. muse. 477, n. 5, et 554, tab. 68, f. 5 (1741), et Herb. 

 Buxbaumla HALL. Enum. stirp. Helv. i, 10 (1742). 



Hippopodlum FABRIC. Prim. fl. butisbac. 31 (1743). EHRH. Phytoph. n. 10 ; Beitr. IV, 

 146 (1789). 



Buxb. aphylla L. Diss. Buxb. II, 10, et VII, 15 (1757) ; et Amcen. acad. V, 83 et go 

 (1760). OEDER Fl. Dan. 1.44 (1761), et t. 2752, fig. i. WEB. Spic. Fl. Gott. 130 

 (1778). RETZ. Fl. Scand. Pr. n. 1188 (1779). EHRH. Hann. Mag. 1780, p. 235. 

 L. FIL. Meth. Muse. 362 (1781). HEDW. Fund. muse. P. II, 96, tab 3, f. 10 et t. 9, f. 52 

 (1782); Sp. muse. 166 (1801). VILL. PI. Dauph. iii, 919 (1786). TIMM Fl. Megap. n. 

 858 (1788). ROTH Fl. Germ, i, 466 (1788) ; et iii, P. I, 343 (1800). JACQ. Collect, iii, 

 213(1790). HOFFM. Deutschl. Fl. ii, 21 (1795). STURM Deutsch. Fl. ii, tab. 3 (1798). 

 SWARTZ Muse. Suec. 74 (1799). BRID. Muse. rec. ii, P. Ill, 147 (1803) ; Sp. muse. Ill, 

 114 (1806) ; Mant muse. 123 (1819). TURN. Muse. Hib. 104 (1804). LAM. et CAND. Fl. 

 fr. 3 ed. i, 513 (1805) ; et Syn. Fl. Gall. 106. SCHULTZ Fl. Starg. 255 (1806) ; Eng. Bot. 

 t. 1596 (1806). WEB. MOHR Bot. Tasch. 381 (1807) VOIT Muse. Herb. 126 (1812). 

 WAHL. Fl. Lap. 350 (1812). SCHWAEG. Suppl. I, P. II, 26 (1816). HOOK. Fl. Lond. n. 

 s. I, T. 23 (1815). MART. Fl. crypt. Erl. 84 (1817). HOOK. TAY. Muse. brit. 84, T. 22 

 (1818). HOOK. Fl. Scot. P. 2, 139 (1821) ; Brit. Fl. ii,68 (1833). GREV. in Mem. Wern. 

 Soc. iii, 442(1821); etV, 79, PI. Ill, fig. 13-23 (1824). FUNCK Moostasch. 38, t. 24 

 (1821). HUEB. Bry. germ. 539 (1833). BR. SCHIMP. Mem. Soc. mus. Strasb. ii, Mon. 4, 

 t. i (1835) ; Bry. Eur. iv, Mon. 5, t. i, et Suppl. t. i ; Syn. Muse. 453 (1860) ; et 2 ed. 



