e 
PLANTS FROM NEW CALEDONIA. . 13 
A Systematic Account of the Plants collected in New Caledonia and the Isle 
of Pines by Mr. R. H. Compron, M.A., in 1914.—Panr IIT. Crypto- 
gams (Hepatice—Fungi). (Communicated by Dr. A. B. RENDLE, 
F.R.S., See. L.S.) 
HEPATICA. 
By Wm. H. Pearson, M.Sc., A.L.S. 
(PLATES 2, 3.) 
(Read 4th March, 1920.] 
A CONSIDERABLE number of Hepatics have previously been collected in New 
Caledonia by Balansa, Buss, Deplanche, Étesse, Franc, Germain, M.& Mme. 
Lerat, Sarazin, Savès, and Vieillard ; these have all been named by Stephani, 
with the exception of three by Bescherelle & Spruce; these are all recorded 
in Stephani’s * Species Hepaticarum.’ 
Most of the species published are endemic; many of these have been 
collected by Prof. Compton ; and the numerous new species in the following 
list are also endemic. 
They are all closely related either to those of Malaya or Australia. I have 
no desire to add to the list of new species, but where I have not been able to 
allocate the plant to any species already described, or to find it to agree with 
any of Stephani’s species which I have seen, I have described it as new. 
I am vain enough to think that if any of my supposed new species have 
already been published by Stephani, my full descriptions will enable future 
students to be better able to identify those published by Stephani, whose 
descriptions are in some cases very short and vague. I use the relative 
terms for size of plants and cells as adopted by Dr. Spruce. 
I refuse to adopt Trevisan’s generic name in place of Spruce’s Acrole- 
jeunea, and can give good reasons for doing so. 
Through the kindness of Prof. Lesage, of Rennes, I have had the oppor- 
tunity of comparing my specimens with many of Stephani’s originals, which 
has been of great assistance to me; my thanks are due to him; also to 
Mr. A. Gepp for his valued help in translating my descriptions into Latin 
and for other assistance. 
PLAGIOCHASMA BISETULUM St., Sp. Hep. Suppl. vi. 6, 1917. 
Obs. Stomata large, surrounded by six large cells; squame purple; 
appendages bi-setulose. 
Endemic, 
Hab. Mont Mou. On stones and mud, by stream. 479, 
