NECKERACE*.] I9 \Porotrichum. 



i. POROTRICHUM ALOPECURTJM (Z.) 



Dioicous; stem dendroid, naked below, pinnately branched above. 

 Leaves ovato-lanceolate, spreading, serrated ; nerve round, vanishing below 

 apex. Capsule ovate, cernuous ; lid rostrate. (T. CXX, A.) 



Sw.-Muscus dendroides sylvarum erectus, ramulis Kali cemulis, radice repente RAY Synops. 2 ed. 



32 (1696). 



Hypnum palustre erectum arbusculum referens rantulis subrotundis DILL. Cat. Giss. 22O 

 (1718), et in RAY Synops. 3 ed. 81 (1724)- 



Hypnum dendroides obscurius, setts et capsulis brevioribns nutantibus DILL. Hist. muse. 315, 

 t. 41, f. 49, et Herbar. 



Hypnum alopecurum L. Sp. pi. 1128 (1753). HUDS. Fl. Angl. 426 (1762). WEISS Crypt. 

 Goett 246 (1770). NECK. Meth. muse. 186 (1771)- WITHER. Bot. arr. ii, 687 (1776). 

 LIGHTF. Fl. Scot. 757 (1777). WEB. Spic. Fl. Goett. 74 (1778). RELH. Fl. Cant. 414 

 (1785). VILLARS PI. Dauph. iii, 917 (1786). ROTH Tent. Fl. Germ, i, 470 (1788). 

 SIBTH. Fl. Oxon. 299 (1794)- HOFFM. Deutsch. Fl. ii, 70 (1795). SWARTZ Muse. Suec. 

 60 (1799). HEDW. Sp. muse. 267 (1801). SM. Fl. Brit. 1302 (1804), Eng. Bot. t. 1182. 

 TURN. Muse. Hib. 163 (1804). WEB. MOHR Bot. Tasch. 307 (1807). ROEHL. Deutsch. 

 Fl. iii, 106 (1813). WAHLENB. Fl. Carp. 352 (1814). SCHWAEG. Suppl. I, P. II, 265 (1816). 

 BRID. Mant. 164 (1819), Bry. univ. ii, 444 (1827). HOOK. TAYL. Muse. Brit. 101 (1818). 

 HOOK. Fl. Scot. P. II, 144 (1821). FUNCK Noost. 63, t. 45 (1821). GRAY Nat. arr. 

 Br. pi. i, 758 (1821). HUEBEN. Muse. Germ. 662 (1833). RABENH. D. kr. fl. II, s. 3, 267 

 (1848). C. MUELL. Synops. ii, 501 (1851). 



Hypnum arbuscula BRID. Muse. rec. II, P. II, 96 (1801), Sp. muse. II, 144 (1812). SCHULTZ 

 Fl. Starg. 321 (1806). 



Isothecium alopecurum SPRUCE in Ann. Mag. Nat. Hist. 1849. WILS. Bry. Brit. 324 (1855). 



Thamnium alopecurum BR. SCH. Bry. Eur. fasc. 49 51, p. 4, t. I (1852). SCHIMP. Synops. 



574 (1860), 2 ed. 688. BERK. Handb. 149 (1863). MILDE Bry. Siles. 298 (1869). DE 



I NOT. Epilogo 64 (1869). HOBK. Synops. 159 (1873). BOUL. Muse. Fr. 92 (1884). HUSN. 



Muse. Gall. 347, t. 100 (1893). LIMPR. in RABENH. D. kr. fl. Laubm. iii, 239, f. 391 (1897). 



Porotrichum alopecurum MITT. Journ. Lin. Soc. xii, 467 (1869). Dix. JAMES. Stud. Handb. 

 370 (1896). 



Dioicous ; stem creeping, subterraneous, with stolons at base, 

 secondary erect, naked and stipe-like in lower half, above with many 

 pinnate slightly incurved branches, stib-complanate, growing in lax 

 rigid dark green tufts. Leaves of lower stem distant, appressed, scarious, 

 ovato-triangular, acute, nerved nearly to apex, upper crowded, broadly 

 ovate, acutely pointed, serrated in the upper half ; nerve strong, serrate at 

 back, ending below apex ; cells small, roundish, along the margin elongated, 

 at base linear, orange. Perich. bracts lanceolate, recurved at point, nerve- 

 less ; seta rather short, purple, smooth ; capsule cernuous, castaneous, 

 longish ovate, often slightly unequal ; lid conic, rostrate. Teeth of peri- 

 stome yellow, united at base, lineal-subulate; endostome a membrane 

 half as high as the teeth, the processes fenestrate in the middle line, and 

 with 23 filiform appendiculate cilia between, and of same length. Bracts 

 of male infl. longish lanceolate, nerveless. 



