D e s c e i p t io n o f P l a t e LXVI.—Pig. 1. Plants natural size.
2. Portion of stem (after Hooker). 3. Portion of stem, antical
view X 24 (Sweden, S. 0. Lindberg, also the following). 4—9.
Leaves x 24. 10. Portion of leaf x 290. 11-15. Stipules x
24. 16-20. Sub-bracts x 24. 21. Sub-bracteole x 24. 22.
Bract X 24. 23. Bracteole x 24. 24. Perianth x 24. 25.
Cross-section of perianth near the base x 24. 26. Ditto, near
the middle. 27. Ditto, near the apex.
Subgenus 3. CEPHALOZIELLA, Spruce.
Plants small or minute, often creeping amongst mosses or
other hepatics, or densely cæspitose, sublurid. Stem for the size
of the plant very often firm, generally at the base subrhizomatous,
but flagella wanting ; cortical cells 10-20, hardly different fro W) the
interior. Lower leaves distant subobliquely inserted (succubous) ;
upper more crowded, or almost exactly transverse, the length
(T-T 5 mm.) rarely exceeding the breadth of the stem, very often
cuneate, to the middle or more bifid, carinate, segments subcompli-
cate or divergent, entire or in one species subdenticulate, rarely
spinulose; cells small-minute (diam. -jVtV mm-) subquadrate
or guttulate. Stipules very variable, sometimes in one and the
same species everywhere present, now altogether obsolete ; always
(where present) small, narrow, entire or bifid. Inflorescence for
the most part dioicous, in few monoicous ; ? very often terminal
on the chief stem, in other species cladogenous, or in various
places. Bracts moderately large 3-pairs (or more) bilobed, tristichous,
very often with the bracteole highly connate, lobes generally
denticulate or spinulose. Perianth for the most part elongate and
narrow, leptodermous, acutely prismatic, keels rarely reduced to 3,
sometimes 3, 4, 5, and also 6 in the same species, mouth denticulate
or ciliolate, rarely suhmutioous. Calyptra delicate. Capsule
obloug-globose. Andrcecia in the middle or at the end of the
chief stem or elongated branches, bracts not smaller than the
leaves, very rarely produced on slender postical branches.
14. Cephalozia diva ricata (A»?//i), JJmn.
Jungermania divaricata, Sm. Eng. Bot. t. 719 (a. 1800) et t. 2163.
Jungermania hyssacea, Roth. Tent. fl. Germ. i. p. 387 (1800) ; Hooker. Brit. Jung.
t. 12 (1816), &c.
Jungeinnania confervoides, Raddi in Act. soc. Modena, p. 29, t. 4, f. 1. (1818).
Jungermania S tarkii, Herb. Funck. Nees N a t. Eu r. Leb. 11, 225 (1836).
Cephalozia divaricata (Sm.) Dum. Recueil (1835).
Dioicous, densely cæspitose or creeping amongst mosses, flagei-
liferous, small, colour very various, namely, green, olive, sometimes
reddish, rarely whitish or almost black. Stems prostrate or suberect,
firm, 6-8 cells in diameter, cortical cells 14-20 scarcely
different 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 transverse,
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, with very rarely
only 3 angles, usually 4, 5 or 6 ; mouth subconstricted, denticulate
or subentire. Calyptra smaller, delicate. Pistillidia about 12.
Capsule oblong-globose. Andrcecia on proper stems, variously-
situated on stem or branch, perigonial bracts several pairs, subimbricate,
equal, incurvo-conoave, bilobed, segments somewhat
acute ; antheridia single, oval.
M