NEW HEPATIC^E. 281 



bifidis, segmentis dentatis; calyce in ramulo proprio, 



brevi, terminali, lineari-subulato, subincurvo, apice subtri- 



fido, integerrimo. 

 Hab. Swan River. On sand. Mr. James Drummond, Hook. 



Herb. 



Patches wide, pale olive-green. Shoots about two lines 

 long. Calyx usually exceeding the adjoining shoot in length, 

 very narrowly cylindrical, acuminate, its lips entire, although 

 in a young state the mouth is kept closed by excessively 

 minute dentiform processes on the tips of the segments. 

 This is allied to J. setacea, L., and J. tricophylla, L., but 

 the calyx is longer, more slender and the segments of its 

 mouth are entire, while the perichsetial leaves are not so 

 deeply divided. 



4. Sphagncecetis, Nees. 



1. S. longiflora, Tayl.; caule disperso, prostrato, subsimplici, 

 flagellifero, foliis imbricatis, patentibus, obovato-rotun- 

 datis, immarginatis, integerrimis, subconcavis ; calyce 

 elongato-subulato, subplicato, incurvo, ore minuto denti- 

 culate 

 Hab. One or two bits occurred on Plagiochila macrostachya, 

 Lind. from Jamaica. 



Pale green. Stems scarcely 1 inch long, rather thick. 

 Leaves gibbous on the ventral margin, slightly indexed 

 on the dorsal; their cells large at the base and centre, 

 but diminishing towards the margin. Perichcetia short, the 

 leaves few, amplexicaul, ovato-lanceolate. Calyx and pe- 

 richeetium form one curve: the former equals six or 

 eight leaves in length and is somewhat plicate. Capsule 

 cylindrical. Flagelliform shoots flattish, elongated, having 

 fibrous roots at their extremities. This differs from S. 

 communis, Nees, by the more elongated calyx, and from it as 

 well as from S. prostrata, Nees, by the want of margination 

 to the leaves j while the round leaves would appear to 

 separate it completely from S. radicosa, Nees. 



Under a good microscope and to practised powers of 

 vol. v. Y 



