94 HEPATIC j^. 



mature somewhat rarer. Leaves tristichous transverse, somewhat 

 broad, complicate-carinate, where large confertus equitant, bilobed 

 to the middle or beyond, lobes subacuminate, entire or often 

 (principally the upper) denticulate or spinulose — sometimes the 

 surface spinose-muricate ; cells small pellucid quadrate-hexagonal, 

 at the axis subelongate, walls more or less thickened. Postical 

 leaves (stipules) similar to the lateral and hardly any smaller. 

 Inflorescence dioicous, rarely paroicous, terminal ; ? innovations 

 often present. Bracts several pairs, more or less crowded capitate, 

 distinctly larger than the leaves ; in other characters hardly 

 diflerent, except sometimes trilobed, with the margin coarsely 

 dentate, rarely connate. Perianth free emersed oblong, at the 

 base 2 cells thick, above delicate, frontally subcompressed, antically 

 deeply unisulcate, postical 3 carinate, at the apex 10-8 -plicate ; 

 mouth either wide or subconstricted, denticulate. 



1. Anthelia julacea (Z.), Bum.. 



Lichenastrum alpinum, Bryi julocei argentei facie, Dill. Hist, Muse. t. 73, f. 38 



(1741). 

 Jungermania julacea, Linn. Sp. P). 11, p. 1601 (1753); Lightf. Fl. Scot. p. 785 



(1777) ; Hook. Brit. Jung. t. 2 (1816). 

 Anthelia julacea, Dum. Recueil, p. 18 (1835); Spruce, On Ceph. p. 81 (1882). 



Dioicous, densely and intricately cpespitose, flagella wanting, 

 from small to largish in size, brownish or olive-green in colour, 

 glaucescent when dry, often infested with slimy or confervoid 

 matter. Stems erect or procumbent, filiform, firm, composed of 

 equal opaque cells, about 30 cortical, 10 to 12 cells in diam, when 

 dry rigid, unequally pinnate, branches all lateral ; radiculose, in 

 the young state rootlets abundant, when mature somewhat rarer. 

 Leaves tristichous, transversely inserted, appressed, erect, closely 

 imbricate or rarely distant, complicate-carinate, concave, oblong, 

 to about two-thirds bilobed, sinus acute, narrow, segments ovate- 

 lanceolate, acute or subacaminate, entire or rarely erose-denticulate, 

 recurved at both sides ; texture firm, epidermis smooth, cells 

 rather minute to small, subquadrate, 4-, 5-, and 6-angled, near the 



