HANDROOK OF BRITISH HEPATICiE. 201 



of the leaves, and, above all, the plicated upper 

 portion of the perianth. Perigonial leaves on 

 separate shoots crowded, concave, sometimes three- 

 toothed, anterior segment in flexed, forming an 

 auricle. 



Genus 28. HARPANTHUS, Nees. 



Dioicous. Involucre small-leaved, lateral, 

 incurved from the interposition of two sti- 

 pules, dissimilar to the leaves. Perianth fusi- 

 form, terete, mouth three or four fid, laciniae 

 unequal, entire, connate at the base with the 

 calyptra, which is adherent up to the middle, 

 apex free. Capsule four-valved, coriaceous, 

 naked. Elaters double, naked, deciduous. — 

 Nccs Eur. Lcb. II., 351. 



Plants stipulate, leaves subcurrent, flattened, 

 divided. 



Fertile shoots very short, ventral, at length sub- 

 lateral. Perianth exscrted, terete, the lower half 

 thickened ; mouth contracted, three to four toothed. 

 Calyptra fleshy, confluent two-thirds with the 

 perianth. I nvolucral leaves one or two pairs. Leaves 

 succubous, ovate, emarginatc, scmi-vertically imbri- 

 cate, secund. Amphigastria lanceolate, connate 

 with adjacent leaves, free margin rcflexed, one- 

 toothed at the base. Male shoots slender, peri- 

 gonial leaves terminal, enclosing one to two 

 antheridia. — Carr. Br. Hep. 4.J. 



