124 UEPATIGJ^. 



4. Lepidozia setacea [l/'e6.), Miff. 



Jungemiania setacea, Web. Spic. pi. Goett. p. 143 (1778), Hook. Brit. Jung. 



t. 8 (1816). 

 Blepharostoma setacea, Dum. Recueil (I8;:!r»). 

 Lepidozia setacea (Web.) Mitt. Proc. Journ. Linn. Soc. v. p. 103 (1841). 



Dioicous, densely csespitose or creeping, small, pale yellowish- 

 green to dark or olive-brown in colour. Stems very slender, 

 filiform, firm, flexuose, on a cross-section 5 and 6 cells in diameter, 

 large, clear, cortical 10-12, similar in size to the inner ; walls 

 firmer and darker ; irregularly pinnate, or subpinnate, often denu- 

 date below ; branches lateral, unequal, alternate ; flageila few, 

 postical ; radiculose, rootlets few, minute, hyaline. Leaves on 

 main stem contiguous or distant, on branches imbricate ; erect, 

 incurved, in outline subquadrate, tri-, rarely quadri-partite almost 

 to the base, where they are 6 cells broad, segments setaceous, 

 subulate, 3-6 cells long, 2, 3 cells wide at the base, branch leaves 

 often bipartite only ; texture delicate ; cells 4-, 5- and 6-angled, 

 smallish to medium size, lumen clear, walls thin but firm, no 

 trigones or thickened angles. Stipules equal in width to the 

 stem or slightly wider, erect, sometimes appressed to the stem, 

 oval-orbicular in outline, tripartite almost to the base, segments 

 setaceous, subulate, usually 4 cells long, a row of 2 at the base. 

 Perianth postical, arising usually from near the base of the stem 

 from an axil of stipule, on short branches, projecting f beyond 

 the bracts. Innermost bracts much larger than the leaves, oval- 

 orbicular, bidentate, segments ciliate-dentate, acuminate ; bracteole 

 oval, bidentate, segments ciliate-dentate, acuminate. Perianth 4 

 times longer than broad, oblong, cylindrical below, plicate above, 

 mouth somewhat contracted by the folds, ciliate-dentate, cilia few, 

 3, 4 cells long, texture delicate, cells laxer than those of the leaves, 

 elongate, almost white in colour, lower half composed of two 

 layers of cells, above of one layer. Calyptra obovate, very delicate ; 

 pistillidia 4-G, linear. Pedicel long, pellucid, delicate. Capsule 

 oval, dark chocolate-brown. Spores dark brown. Elaters bispiral, 

 slightly broader than the spores, similar in colour. Androecia 



