V. HEPATIC2E. 
501 
B. (Marciiaxtie.e ). — Capsules several , pendent from a stalked peltate cup-like 
receptacle. 
33. Plagiochassia. Receptacle minute, 3-4-lobed ; lobes concealed by the ascending 
involucres. 
34. Mahchantia. Receptacle large, 8-10-rayed; involucres 2-valved, with several 
capsules. 
35. Dujiortiera. Receptacle convex, hairy ; involucres horizontal, opening by a lateral 
slit, with one capsule. 
36. Rebouua. Receptacle 1-6-lobed to the middle; involucres continuous with the 
margin of the lobe, with one capsule. 
37- Fimbriaria. Receptacle conical, tubercled ; margins forming 4 campauulate invo- 
lucres, with one capsule. 
C. (TargioniEjE). — Capsule solitary towards the tip of the frond , erect, shortly stalked, 
bursting irregularly, enclosed in a sessile 2-valved involucre. 
38. Targionia. Involucre of 2 longitudinal valves. 
D. ( AnthocerotE/e) . — Capsule solitary on a long fruitstalk, erect, linear, very long, 2- 
valved, with a central filiform columella, bursting by 1 or 2 linear valves. 
39. Anthoceros. Involucre tubular. Capsule with 2 linear valves ; elaters 0. 
E. (Riccis). — Capsules imbedded in the substance of the frond, valveless. 
40. Riccia. Involucre 0. Calvptra cohering with the capsule. 
1. GYMH OMITBIUM, Corda. 
Stems erect or creeping, usually very slender or capillary. Leaves succu- 
bous, distichous, flat or concave, entire or 2-lobed Stipules 0 or very incon- 
spicuous. Fruit terminal. Iuvolucral leaves 2-4, convolute, emarginate- 
Perianth 0. Calvptra short. Capsule globose on a slender fruitstalk ; elaters 
with 2 spiral fibres. Antheridia axillary, obovate. 
The genus has not beeu found in Tasmania ; it passes into ungermannia. 
1. G. stygium, Hook.f. and Tayl. ; — FI. Anturct. 144. t. 62./. 4. Mi- 
nute; stems erect, capillary, i— in. high, vaguely branched, olive-brown or 
purplish. Leaves erect, subsecund, loosely imbricate, broadly obovate, 
rounded or refuse at the apex ; perichsetial orbicular, hyaline at the margins. 
Campbell's Island : creeping amongst mosses, etc., on rocks on the hills, J. D. H . — 
The southern representative of the northern G. concinnatum, which has 2-fid leaves. 
2. G. acinacifolium, Hook.f. and Tayl. FI. Antarct. 144. t. 62./. 5. 
Stems dark purple, erect, tufted, sparingly branched, 1 in. high. Leaves 
secund, closely imbricate, opaque, obliquely oblong or acinaciform, rounded 
at the apex, posterior margin recurved, anterior convex. 
Campbell’s Island : creeping amongst mosses and on rocks on the hills, J. 1). H. 
3. G. ochrophyllum, Hook.f. and Tayl. FI. Antarct. 145. t. 62./. 6. 
Steins pale green, filiform, sparingly branched, 1-1^ in. high. Leaves dis- 
tichous, loosely imbricate, erecto-patent, concave, obovate or subquadrate, 
shortly 2-fid ; segments obtuse, cells lax. Stipules very minute or absent. — 
G. minuta, FI. Antarct. 152, not of Crantz. 
Lord Auckland’s group : amongst mosses on the hilltops, ./. A. H. 
4. G. concinnatum, Corda. — Jungermannia, FI. N. Z. ii. 128. Stem 
erect, short ; branches straight, thickened, obtuse and compressed at the apex. 
