No2. 36e ANNÉE TT 771900 
REVUE BRYOLOGIQUE 
ParaissaNT Tous LES Deux Mois 
. 
Les manuscrits doivent être écrits en français, en latin ou en anglais 
Sommaire du n° 2 
* Distichophyllum carinatum Dixon et Nicholson, a species and genus new to 
Europe Dixon. — A contribution to the Bryology of Tornean Lapland, 
with a discussion on the relationship of Mnium hymenophyllum and 
M. hymenophylloides. DIxoN. — Nouvelles observations sur Sphæro- 
carpus. DOUIN. — Note on Northamerican Bryineæ. KINDBERG. — Riella 
bialata. TRABUT. — Muscinées de la Nouvelle Calédonie PARIS. — 
dentale (3 article). CARDOT. — Bibliographie. — Nouvelles. 
DiISTICHOPHYLLUM CARINATUM DIXON AND NICHOLSON, A SPECIES AND 
GENUS OF MOSsES NEW TO EUROPE. 
The genus Distichophyllum was founded by Dozy and Molken- 
boer in 1846, for certain species of the Hookeriaceæ. Carl Müller 
_in the Synopsis, apparentiy on very slight and inadequate 
grounds, substituted the name of Hniadelphus Tor practically the 
same group of species (founding the name on the resemblance of 
the areolation to that of Mnium). In the Bryologia Javanica Van 
_ den Bosch and Sande Lacoste restored the name of Distichophyl- 
lum, treating Mniadelphus as a synonym. Mitten in the Musci 
Austro-Americani retains Distichophyllum, dividing it into {wo 
sections or sub-genera, one of which he calls Mniadelphus C. M. 
ex p., and the other Discophyllum Mitt. This arrangement IS 
relained by Brotherus (Engler et Prantl, Pflanzenfamilien), 
p. 926. Hp Et 
” Among the Hockeriaceæ Distichophyllum is characterized prin- 
cipally (in addition to some peristome characters) by the habit, 
the leaves usually wide, rounded, frequently spathulate and 
Mnioid, the single rather narrowW nerve, the areolation large, 
parenchymatous, rounded to hexagonal, smooth, the marginal 
nearly always forming a narrow border of linear cells. The stems 
are frequently compressed, with the dorsal and ventral leaves 
… differing slightly in form and position from the lateral ones, 
Diagnoses préliminaires de mousses du Congo belge et de l'Afrique occi- 
