270 TASMANIAN HEPATIC^. 



Diplol(znaclador]iizans,Hook.,f. et TayL Patches loose, 

 wide, very pale green in the younger parts, pale olive 

 in the older. Fronds a little more than an inch long, 

 lanceolate acuminate into an elongated point consisting 

 almost entirely of the nerve, and radicating at the 

 summit, and thence in the following season, sending 

 out new fronds. The nerve is whitish and stout, 

 though slender. The perichsetium or outer calyx occurs 

 at the base of the frond, and on its inferior side it is 

 attached to the nerve ; there are often three together, 

 its exterior scales are rotund and deeply toothed, the 

 interior scales are united at their hases, and have 

 setacious cilia which are jointed ; from the centre of 

 these issues the true calyx, large in proportion to the 

 size of the frond, slightly bent upwards, pale flesh- 

 coloured, its mouth laciniated, and the lacinse elongato- 

 ciliate. Lond. Jouru. Bot. 1844. 670. 



St. Patrick's Eiver, Gimn. South Huon, Oldfield. 

 West-end Eivulet, Archer. Ulverstoue, Miss Lodder. 

 Mount Wellington, Rodway, R.d.B. 



33. ^'T:'E:ETZlk, Lehmann. 

 Complete periantli on upper side of a continuous frond. 

 Prond linear, more or less dichotomously branched, with a 

 midrib. Inflorescence dioecious. Involucre at first 

 terminal, dorsal by the subsequent elongation of the 

 frond, seated on the midrib, cup-shaped, torn. Perianth 

 tubular ; mouth toothed. Calyptra as long, torn at the 

 apex. Capsule on a slender fruitstalk, ovoid ; elaters free, 

 with 2 fibres. Antheridia dorsal, on the midrib, covered by 

 minute fimbriated leaves. Hook. Handbook, p. 541. 



1. S. PisicoLOR, Hook. f. ef. TayL Crypt. Antarct. 138. 

 PI. 160, f. 7. 



Diplolana, Nees. Fronds erect, in loose tufts, 

 dichotomous. Lobes linear, concave, obtuse, emargi- 

 nate, nerved. 



Fronds nearly Sin. high, pea- green in the younger 

 and upper part, blackish below, two or three times 

 dichotomous ; the nerve in the dried state is very thin 

 and whitish, but when the frond is thoroughly 

 moistened, it swells and becomes of the same colour 

 as the rest of the frond, while the lobes become con- 

 cave or channelled, the branches separate at an acute 

 angle. New fronds issue from the sides of the old by 



