BY E. A. BASTOW, F.L.S. 281 



40. EEBOULIA, Nees. 



Fruit in stalked peltate receptacle, no perianth, involucre opening by 



2 valves. 



Frondose, growing on rocks and earth ; habit of Marchantia ; 

 midrib strong, broad. Female 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. Calyptra ovoid, soon 

 rupturing, leaving a cup at the base of the capsule. Capsule 

 exserted, sub-globose, membranous, lacerate, or sub- 

 operculate ; elaters with 2 spirals ; spores tubercled. Male 

 receptacle sessile, discoid. 



Er. HEMisPH^KicA, Raddi. Frond 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. Hook. Hand- 

 book. Fl. KZ. 646. Syn. Hep. 648. PI. sxxv. 



Fronds prostrate, flat, overlapping, from one to three 

 inches long, generally forked, and waved at the margin, 

 of a dark green colour. Midrib prominent. Fruitstalk 

 2-4in. long. Receptacle cut at the margin into from 

 four to ten equal lobes, covering as many involucres, 

 which are not toothed. It is easily distinguished by the 

 deeply divided 4-5fid receptacle, which is barbate 

 beneath and at the base of the peduncle. Cook's 

 Britt. Hep. 26. 



Like the British species, these have the fronds 

 frequently constricted in an articulate manner, 



Tasmania, Hooker. Gully, Mount Wellington, 

 R.A.B. (Australia, New Zealand, Cosmopolitan.) 



41. FIMBEIARIA, Nees. 



Fruit in stalked peltate receptacle. Perianth split into bands, cohering at 

 their apices. 



Frondose, habit of Marchantia ; midrib keeled. Inflorescence 

 monoecious. Female receptacle hemispherical, concave 

 below ; margins expanding and forming 4 campanulate, 

 pendant, 1 capsuled involucre. Perianth projecting beyond 

 the involucre, oblong, splitting into many lacinise at the 

 mouth. Calyptra fagacious. Capsule sessile, globose, 

 bursting transversely ; elators short, with 1 or 2 spirals ; 

 spores muricate. Antheridia not on receptacles but im- 

 mersed in the frond. 



