HyPNACEiE.j 9 [Leshea- 



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 Thuidium, 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 Leshea. 



Clavis to the Species. 



Without paraphyllia. nervosa. 

 With paraphyllia. 



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



mamillose, stems stronger, leaves spreading. folycarpa. 



Sect. I. PSEUDOLESKEA {Br. Sch.). Capsule short turgid, pachy- 

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

 tufts. 



I. LESKEA CATENUIATA [Brid.) 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.) 



Syn. — 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. iii, 54 (1813). 



Pterogonium catenulatum Schleich. Cat. pi. helv. 30 (1807). 



Grimmia caienulata Web. Mohr Bot. Tasch. 151 (1807). Schkuhr Deutsch. moos. 64, 

 t. 27 (1810). 



Hypnum 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). 



Isothecitim catenulatum Hueben. Muse. germ. 599 (1833). 



Pseudoleskea caienulata Br. Sch. Bry. eur. fase. 49—51, p. 3, t. 2 (1852). Schimp. Synops. 

 492 (i860), 2 ed. 604. Berk. Handb. br. m. 138 (1863). Milde Bry. siles. 265 (i86g). 

 HoBK. Synops. 2 ed. 191 (1884). Boulay Muse. Fr. 163 (1884). HusN. Muse. gall. 

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



