168 ILOKA OE NEW ZEALAND. [Hepaticce. 



7. Sarcomitrium eriocaulum, Mitten. — Jungermannia eriocaula, Hook. Muse. Exot. t. 72. Metzgeria 

 eriocaula, G. L. et N. Syn. Hep. p. 505. 



Hab. Middle Island : Dusky Bay, Mendes. Port Nicholson, Lyatt. 

 Easily distinguished from the other species by its short pubescence. 



Gen. XXX. PLAGIOCHASMA, Lehm. et Ldbg. 



1. Plagiochasma australe, Nees ; fronde lineari-elongata apice retusa marginibus crenulato-rugulosis, 

 squamis ventralibus acutis apiculatis superioribus ultra marginem prominentibus, fructibus medio frondis 

 seriatis, pedunculo basi paleaceo, receptaculo 2-4-carpo subtus paleis barbato. — 0. L. et N. Syn. Hep. 

 p. 514. Pegatella australis, Hook. fit. et Tayl. Lord. Jowrn. Bot. 1844, j?. 572. 



Hab. Northern Island : Bay of Islands, J. I). II. Hokianga, Jolliffe. In water, Tehawera and Patea, 

 Colenso. 



Frondes pollicares, lineares, innovationibus ventralibus ramosee, marginibus purpureis. Squama latiusculae, pur- 

 purea, apicibus byalinis. Pedunculus brevissimus elongatusve, nunc pollicaris, basi paleis lineari-lanceolatis cinctus. 

 Receptacula fceminea subrotunda, rugulosa, loculis turnidis, paleis linearibus ; musculo, disciformia, papillata, prope 

 freminea disposita. 



Similar in habit and appearance to P. Aitonia, Lind. et Nees, from Madeira, and, like it, belonging to the sec- 

 tion of the genus with innovations from the ventral side of the fronds, and not from their apices. 



Gen. XXXI. MARCHANTIA, Linn. 



1. Marchantia tahularis, Nees. G. L. et N. Syn. Hep. p. 525. M. polymorpha, Hook. fil. et Tayl. 

 M. Antarct.p. 168 et 446. 



Hab. Northern and Middle Islands : trunks of trees, Auckland, Waikehi, and Mount Egmont, Sin- 

 clair. Bay of Islands, J. D. II. East Coast and interior, Colenso. Near Wellington, Stephenson. Port 

 Cooper, and Southern Island, Lyatt. 



This differs from M. polymorplia in the more convex fronds, which show no trace of the dark nerve so conspi- 

 cuous in that species. The cells are more minute, and, from the prominence of the pores, have a rough appearance. 

 Male receptacles on very short peduncles, never exceeding half an inch in height. Peduncle of the female receptacle 

 1-4 inches long. Rays of the receptacle shorter, and the involucra less deeply laciniate than in M. kemispAarica, 

 M. Berteroana, Lehm. et Ldbg., from Juan Fernandez and Peru, comes very near to M. tahularis in habit, size, and 

 structure of its fronds, but its male receptacles are borne on peduncles which equal those of the female, and their 

 segments are more quadrate, and slightly emarginate ; both these species are more robust than M. polymorplia. All 

 the specimens from various parts of the Antarctic regions, referred by Dr. Taylor to M. polymorplia, belong to M. 

 tahularis . 



2. Marchantia nitida, Lehm. et Ldbg., in Lehm. Pug.pl. 4<.p. 11. G. L. et N. Syn. Hep. p. 532. 

 Hab. Northern Island : Tuaraiawa river, etc., Colenso. East Cape, Sinclair. 



These specimens appear to correspond in all respects with others from Nepal. 



3. Marchantia foliaeea, Mitten; receptaculo foemineo excentrico umbonato circiter 8-lobo, lobis dila- 

 tatis explanatis foliaceis, involucris pallidis lacero-ciliatis, pedunculo basi squamoso apice barbato, fronde 

 dichotome lobata viridi. 



Hab. Northern Island : banks, base of Euahine mountains, Cape Turnagain, etc., Colenso. Hokianga, 

 Jolliffe. 



Frondes bi-tripollicares, subcoriacea;, planiuscute, superne lseviuscute, subnitidae, poris parvis pallidis, interne 



