HYPNACE^:.] 9 [Leskea. 



2. LESKEA Hedw. 



Fund. muse. II, 93 (1782). 



Primary stem creeping and bearing the fruit, vaguely branched, the 

 ramuli single, erect from procumbent branches. Paraphyllia lanceolate 

 or subulate. Leaves plurifarious, uniform, patent or secund, ovato- 

 lanceolate ; the cells small, mamillose or smooth, roundish, pachyder- 

 mous, chlorophyllose, the lower laxer, hexagono-rectangular. Capsule 

 erect, oblong or cylindraceous, straight or subarcuate ; calyptra pale, 

 cucullate, endostome of 16 carinate processes, cilia short or wanting. 

 Inhabiting trunks of trees or rocks in dull green or brownish patches. 

 After Professor Leske of Leipzic. 



This genus is allied to Thuidiiim, but wants the beautiful pinnate 

 arrangement of the branches seen in that genus, as well as the highly 

 developed papillae. About 35 species are referred to Leskea. 



CLAVIS TO THE SPECIES. 



Without paraphyllia. nervosa. 

 With paraphyllia. 



Leaf-cells smooth, stems very slender, julaceous. catenulata. 



mamillose, stems stronger, leaves spreading. polycarpa. 



Sect. i. PSEUDOLESKEA (Br. Sell.). Capsule short turgid, pachy- 

 dermous, stems and branches filiform, creeping, in dingy green interwoven 

 tufts. 



i. LESKEA CATENULATA (End.) Mitt. 



Dioicous; stem creeping, subpinnate with slender filiform branches. 

 Leaves imbricated, ovate, entire, nerved to middle, the cells smooth. 

 Capsule oblong, subcernuous; lid rostellate. (T. LXXXVI, C.) 



Svx.Pterigynandrum catenulatum BRID. Muse. rec. II, P. I, 64, t. 5, f. 4 (1798), Sp. muse. I, 

 130 (1806). ROEHL. Moosg. Deutsch. 183 (1800), Deutsch. Fl. Hi, 54 (1813). 



Pterogonitim catenulatum SCHLEICH. Cat. pi. helv. 30 (1807). 



Grimmia catenulata WEB. MOHR Bot. Tasch. 151 (1807). SCHKUHR Deutsch. moos. 64, 

 t. 27 (1810). 



Hyfinum catenulatum SCHWAEG. Suppl. I, P. II, 218 (1816). BRID. Sp. muse. II, 154 (1812), 

 Mant. 167 (1819), Bry. univ. ii, 450 (1827). FUNCK Deutsch. Moose t. 39, f. 16 (1821). 

 C. MUELL. Synops. ii, 477 (1851). WILS. Bry. brit. 358, t. 55 (1855). HOBK. Synops. 

 153 (1873). LESQ. JAMES Moss. N. Amer. 319 (1884). 



Isothecium catenulatum HUEBEN. Muse. germ. 599 (1833). 



Pseudoleskea catenulata BR. SCH. Bry. eur. fasc. 4951, p. 3, t. 2 (1857). SCHIMP. Synops. 

 492 1860), 2 ed. 604. BERK. Handb. br. m. 138 (1863). MILDE Bry. siles. 265 (1869). 

 HOBK. Synops. 2 ed. 191 (1884). BOULAV Muse. Fr. 163 (1884). HUSN. Muse. gall. 

 306, t. 87 (1892). Dix. & JAMES. Stud. Handb. 380 (1896). 



