342 HE PAT 10 M 



25. Jungermania gracilis, 8ch/eic/i. 



Jnngermania gracilis, Schleichex', PI. crypt. Helv. Cent. 3, n. CO (1804). 

 Jungermania hctrbata, var. minor, Hook. Brit. Jung. t. 70, figs. 18-20 (1816). 

 Jungermania harhata, var. attenuata, Mart. Fl. crypt. Erl. p. 177, t. 6, f. 50, c. 



(1817). 

 Jimgermania attenuata, Lindenb. Hep. Eur. p. 48, n. 44 (1829). 



DioicoLis, loose]}' csespitose, sniall to medium in size, of a 

 green or brown colour. Stems simple or furcate, or innovantly 

 branclied, suberect, flexuose, branches subj)ostical-lateral, proceed- 

 ing from apex of stem, filiform, attenuate, with small closely 

 appressed leaves ; radiculose, rootlets plentiful, long, whitish. 

 Leaves imbricate or approximate, obliquely inserted, patent or erect- 

 patent, ov^al-quadrate, quadrate, concave, bifid, trifid, or rarely quad- 

 rifid, from about ^ to ^ deep; leaves on the attenuate branches small, 

 closely appressed, erect, imbricate, erose by the development of 

 gemmoe; cells small, 4-, 5-, and 6-sided, lumen filled with chloro- 

 phyllose granules, walls moderately thin, trigones small, distinct. 

 Stipules Avanting or minute, linear, subulate, near the bracts distinct 

 (sub-bracteoles), ovate-lanceolate, bifid to about the middle, margin 

 entire. Bracts larger than the leaves, spreading, quadrate or 

 broadly roundish-quadrate, trifid or quadrifid to about \, segments 

 acute, unequal. Bracteole ovate-lanceolate, bifid to about the 

 middle, connate with an adjoining bract, rarely free. Perianth 

 terminal, projecting about \ beyond the bracts, cylindrical, oval- 

 oblong, oval or ovate, upper half acutely 5-plicate, lower half 

 slightly folded, 2 layer of cells thick at the base, higher one cell 

 thick, mouth contracted, ciliolate. Calyptra 2 cells thick at the 

 base, one higher where it is thin and delicate. Capsule oval, 

 reddish-brown. Spores round, brown. Elaters bispiral. 



Male stems spicate ; perigonial bracts usually terminal, trans- 

 versely inserted, closely imbricate, 5-6 pairs, ventricose, condupli- 

 cate, bifid with a large tooth on the antical side (trifid), apices 

 incurved ; antheridia one or two in each bract, oval. Gemmae 

 terminal at the ends of the leaves, yellowish-red or green, irregular, 

 oval or angular. 



