Hepaticce.~\ 



ELOBA OF NEW ZEALAND. 



165 



spring from the ventral side of Steetzia pisicolor, Hook. fil. et Tayl., whose fronds possess a similar central line 

 throughout their length. Both the male spikes and perianth arise from the lower parts of the fronds, or the stipes, and 

 then seem to be lateral, as in the figure in 'Musci Exotici.' The closest resemblance in habit and general appearance 

 exists between Podomiirium PJiyllantlus, Steetzia Lyellii, and Symphyogyna subsimplex, Mitten, so that in the barren 

 state their areolation alone distinguishes them : this in P. PJiyllanthus is more minute and opaque. 



Gen. XXVI. STEETZIA, Lelim.\ 



1. Steetzia Lyellii, Nees. G. L. et N. Syn. Hep. p. 475 et 785. 



Hab. Northern Island : clay banks, East and South Coast, Colenso. (A native of England.) 

 This variable species is found in nearly all parts of the world. The New Zealand specimens do not differ from 

 those gathered in Britain, except that the perianth is rather longer. 



2. Steetzia lenuinervis, Hook. fil. et Tayl.; fronde gracili prostrata lineari dichotoma nervo gracili percursa 

 margine dentata. — Diplolsena tenuinervis, Lond. Joum.Bot, 1844,^. 570. G. L. et N. Syn. Hep. p. 477. 



Hab. Northern Island, Colenso. 



" Fronds scarcely two inches long, pea-green, linear, but slightly broader at their tops, where they are bilobate with 

 a very shallow sinus. The substance is thin, the cells distinct, the nerve pale yellow, very slight and opaque, having 

 on each side a series of denser and greener cells than on the rest of the frond ; the margin is furnished with distant 

 but large teeth. This is exceedingly like the British Jung. Hibemica, Hook., but its nerve is more slender, the den- 

 tation of the margin more pronounced, the substance of the frond thinner, and its cells are more clearly defined." 

 Taylor, I. c. 



A very doubtful species, which seems to present no other character but the more dentate margins of its fronds, 

 to distinguish it from S. Lyellii. 



3. Steetzia xiphoides, Hook. fil. et Tayl.; fronde procumbente dichotoma anguste lineari margine 

 serrata. — Diplohena xiphoides, Lond. Journ. Bot. 1844, p. 567. G. L. et N. Syn. Hep. p. 476. 



Hab. Northern Island : Bay of Islands, J. JD. II. Wet wood, Manawatu river, often growing under 

 water, Colenso. 



Viridis. Frondes bipollicares, | lin. lata?, parce dichotome ramosas, margine serrato. Involucrum e foliolis sub-5 

 laneeolatis formatum. 



Very distinct from all the described species of Steetzia and of Symphyogyna, and in size and general habit very 

 similar to the larger forms of Metzgeriafureata. The involucra are too young to give a correct idea of their na- 

 ture when in fruit. The only plant with which the present can be correctly compared is the Steetzia linearis (Sw.), 

 Mitten, which, from Swartz's specimens (Herb. Hook.), appears to be a smaller plant, with a more close areola- 

 tion and more strongly defined cartilaginous margin. 



Gen. XXVII. SYMPHYOGYNA, Mont, et Nees. 



1. Symphyogyna/«^«&!, M. et N. G. L. et N. Syn. Hep. p. 481. Jungermannia flabellata, HooL 

 Muse. Bxot. t. 13. Flor. Antarct. p. 167. Lab. Fl. Nov. Holl. v. 2. p. 109. t. 254./. 1. 



Hab. Northern and Middle Islands: Dusky Bay, Menzies, Eorests, Wairarapa, Tehawera, etc., 

 Colenso. Port William, Southern, Island, Lyall. 



2. Symphyogyna leptopoda, Hook. fil. et Tayl. ; rhizomate filiformi repente ramoso, frondibus flabelli- 

 formibus erectis trichotomis, laciniis linearibus integerrimis teneris. — Lond. Journ. Bot. 1844, j». 571. G. 

 L. etN. Syn. Hep. p. 482. 



Hab. Northern and Middle Islands : Bay of Islands, J". L). H. Hokianga, Joliffe, Tararua and 

 Wairarapa, Colenso. On trees, Otago, Lyall. 



VOL. II. s TT 



