546 
V. IIEPATIC.E. 
35. DUMORTIERA, Nees. 
Habit and most of the characters of Marchantia, but involucres with 1 
capsule, horizontal, opening by a vertical slit. Perianth 0. Capsule shortly 
stalked; elaters very long ; spores muricate. 
A small genus, scattered over various parts of the globe, growing on the ground in moist 
places. 
1.? D. hirsuta, Nees ; — Fl.N.Z. ii. 169. Prond dichotomous, bright 
green, tender, pellucid, with no midrib, crenulate-undulate, hairy below. 
Pemale receptacles with many fruits, convex, covered with scattered bristles ; 
margin and involucres hirsute, bearded round the top of the peduncle. — 
Syn. Hep. 343. D. dilatata, Syn. Hep. 543. Ilygropila dilatata, Hook. f. 
and Tayl. in PI. Antarct. 168. 
Northern and Middle Islands: abundant, from Bay of Islands, J. T>. H., to Akaroa, 
Raoul, in watery places, etc. Lord Auckland’s group, ./. B. H. — One of the largest 
and commonest Hepaticce of New Zealand, but never found in fruit and hence doubtful as 
to genus and species. The specimens are much larger than any of B. hirsuta, from other 
parts of the world ; the latter species is very variable and found in various parts of America 
and South Atrica. 
36. REBOULIA, Nees. 
Prondose, growing on rocks or earth ; habit of Marchantia ; midrib strong, 
broad. Pemale receptacle peduncled, flat, conical, or hemispherical, 1-6- 
lobed, almost to the middle ; lobes thick, their margins forming a 2-valved 
involucre, containing one capsule. Perianth 0. Calvptra ovoid, soon rup- 
turing, leaving a cup at the base of the capsule. Capsule exserted, sub- 
globose, membranous, lacerate or suboperculate ; elaters with 2 spirals ; 
spores tubercled. Male receptacle sessile, discoid. 
A small genus of three species, scattered over the world. 
1. R. hemispbaerica, Raddi. Prond dichotomous, with innovations 
that are rounded and emarginate at the apex, green above, purple below ; 
receptacle variable in shape; hairs at its base very slender. — Syn. Hep. 548. 
Northern and Middle Islands: Auckland, Knight; Nelson, M ant ell; Canterbury, 
Travers. (Cosmopolitan.) 
37. FIMBRIARIA, Nees. 
Frondose; habit of Marchantia ; midrib keeled. Inflorescence monoecious. 
Pemale receptacle hemispherical, concave below ; margins expanding and 
forming 4 campanulate, pendent, 1-capsuled involucres. Perianth projecting 
beyond the involucre, oblong, splitting into many laciniee at the mouth. 
Calyptra fugacious. Capsule sessile, globose, bursting transversely ; elaters 
short, with 1 or 2 spirals ; spores muricate. Antheridia not on receptacles, 
but immersed in the frond. 
1. F. Drummondii, Tayl.; — FI. N. Z. ii. 169. Prond 1-1 £ in. long, 
linear-elongate, green or purplish. Pemale receptacle conical, obtuse, papil- 
lose with vesicular cells, almost naked below ; perianths white and purplish, 
broadly ovate, sub-1 2-fid; segments broad, flat, cohering at the apex ; pe- 
duncle 2 in. long, slender, black-pwple. — Syn. Hep. 566 and 791. 
