CEPHALOZIELLA . 177 



14. Cephalozia divaricata (>S////M), Dam. 



Jungermania divaricata, Sm. Eng. Bot. t. 711) (a. 1X00) et t. 2A^ij'^. 

 Jungermania bijssacea, Roth. Tent. fl. Germ. i. p. 387 (ISOO) ; Hooker. ISrit. Jung. 



t. 12 (181G), &c. 

 Jungermania con/ervoides, Radcli in Act. soc. Modena, p. 29, t. 4, f. 1. (1818). 

 Jungermania Starkii, Herb. Funck. Nees Nat. Eur. Leb. 11, 225 (18.'5G). 

 Cephalozia divaricata (Sm.) Dum. Recueil (ISoo). 



Dioicous, densely ctespitose or creeping amongst mosses, flagel- 

 liferous, small, colour very various, namely, green, olive, sometimes 

 reddish, rarely whitish or almost black. Stems prostrate or sub- 

 erect, firm, 6-8 cells in diameter, cortical cells 14-20 scarcely 

 diff'erent from the inner ; simple or slightly branched ; radiculose, 

 rootlets white, Leaves small, distant on sterile stems, on fertile 

 very often subimbricate, accrescent, subsuccubous or almost trans- 

 verse, cuneate or rotund-quadrate, nearly to the middle bifid (rarely 

 a little more), segments complicate or divergent, ovate triangular 

 acute or subacuminate, rarely obtuse, entire, rarely with one or 

 two teeth ; cells from minute to small, subquadrate, leptodermous, 

 pellucid or subopaque, walls firm, no trigones or thickened angles. 

 Stipules lanceolate or ligulate, lower ones minute, entire, upper 

 larger, apex often bifid (rarely trifid), sometimes wanting altogether 

 or only present near the flowers. Flowers % terminal on chief 

 stem or elongated branches (rarely on short ones) ; bracts 3 pairs, 

 tristichous, larger than the leaves, innermost sometimes more or 

 less connate, rotund-quadrate, bilobed, segments acute, denticulate 

 or subspinose ; bracteole adnate to bract or free, ovate-quadrate, 

 bilobed, rather smaller than the bracts. Perianth linear or 

 narrowly fusiform, composed of one layer of cells, often bicolour, 

 towards the base purple, apex white prismatic, witli very rarely 

 only 3 angles, usually 4, 5 or 6 ; mouth subconstricted, denticulate 

 or subentire. Calyptra smaller, delicate. Pistillidia about 12. 

 Capsule oblong-globose. Androecia on proper stems, variously 

 situated on stem or branch, perigonial bracts several pairs, sub- 

 imbricate, equal, incurvo-concave, bilobed, segments somewhat 

 acute ; autheridia single, oval. 



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