174 HEPATIC.^. 



13. Cephalozia denudata (Nees), Sjjnice. 



Jungermania denudata, Nees in Mart. Crypt. Erlang. p. xiv. (1817). 

 Jimgermania scalaris b denudata, Mart. Crypt. Erlang. p. 185, t. G, f. 58, b. 



(1817). 

 Jungermania S'phagni, Hook, et al. ex p. (181(5). 

 Pletrroschisma denudatum, Dum. Syll. Jung. CD (1831). 

 Odontoschisma denudatum, Dum. Recueil, p. 19 (1835). 

 Sphagnaecetis communis macrior, Nees in G.L.N. Syn. Hep. p. 149 (1844), 

 Sphagncecetis Huehneriana, Rabenh. Handb. ii. 5, p. 338 (1848). 

 Cephalozia deniodala. Spruce, On Cephalozia (1882). 



Dioicous, intricately csespitose, flagelliferous, small, greenish- 

 to reddish-bi'ovvii in colour. Stems almost leafless at the base, 

 rhizomatous, creeping, subramose, cortical cells about 40, similar 

 to the inner, 10 x 8 cells in diameter; branches subfasciculate, 

 erect, gemmiparous ; radiculose, rootlets numerous on the creeping 

 stems ; flagella postical, few. Leaves imbricate, patent-divergent, 

 never secund, concave, broadly ovate or oval, entire, sometimes 

 retuse or emarginate, slightly decurrent antically, largest near the 

 middle of the stem, becoming gradually smaller above and 

 gemmiparous ; texture firm ; epidermis verruculose ; cells small, 

 roundish-quadrate, walls thick, angles thickened, no trigones. 

 Stipules everywhere present, increasing in size on the gemmi- 

 parous branches and becoming equal in size to the terminal leaves, 

 oblong-roundish-quadrate, broadly oval or lanceolate, entire, acute 

 or subdenticulate. Inflorescence $ postical ; sub-bracts oval or 

 ovate, bidentate to about a sixth ; sub-bracteole oblong, entire ; 

 bracts twice bifid, margin denticulate or rarely entire ; bracteole 

 lanceolate, acute, minutely bidentate. Perianth narrowly fusi- 

 form, cylindrical below, above obtusely trigonous, mouth small, 

 denticulate or shortly fimbriate, at the base 3 cells thick, near 

 the middle 2, upper lialf composed of a single layer of cells. 

 Calyptra very delicate, composed of a single layer of cells. 

 Pistillidia long, narrow, about 12. Androecia postical, amenti- 

 form, arcuate-decurved, perigonial bracts 3-8 pairs, deeply 

 saccate, margin entire, emarginate or incised, segments obtuse or 

 obtusate. 



