72 REVUE BRYOLOGIQUE 
 R. oblusifolium Besch., 1908 (Pringle, n. 15277 in parte). Etat de 
. Michoacan : Morelia, 1908 (D' Manuel Martinez Solozarno), en 
mélange avec Brachythecium lenuinerve Card. Environs de Puebla 
(Fr. Arsène, 1906; herb. F. Renauld). 
Cette espèce peut être rapprochée du R. oblusifolium Besch., 
mais elle s’en distingue facilement par ses feuilles nettement 
acuminées, généralement aiguës, ses rameaux un peu comprimés, 
_ plus mous, sa capsule moins courte et moins épaisse. Elle ne me 
. semble pas pouvoir être rapportée au R. subrusciforme (G. Müll.) 
_ Jæg. qui, d’après la description, a les feuilles obtuses, la capsule 
_ étroitement cylindrique, et le port du R. callistomum Besch. 
 L'inflorescence de cette espèce paraît polyoïque : le n. 15277 
an parle du D" Pringle est certainement monoïque, tandis qu'il 
_ m'a été impossible de trouver des fleurs mâles sur l’échanfillon 
fertile récolté par M. Solorzano. 
(A suivre). 
WHAT IS THE TRUE NAME OF Cynodontium laxirete Grebe ? 
* In theAnnals of Scottish Natural Historyfor 1906, p.106, Dr. Stir 
ton pointed out that Cynodontium laxirele Grebe (C. polycarpum 
var. laxirele Dixon) had already been described under the name 
. Didymodon Jenneri by Schimper in the Transactions of the 
= Botanical Soc. of Edinburgh, 1868. This identification has been 
allowed Lo pass unnoticed, the name C. laxirele having been 
_ maintained in several recent continental works, including Roth 
die Europaïsche Laubmoose. 11.8 
There can be no doubt, however, It hink, that Schimper’s 
name must have priority, and it is well perhaps to recall the 
facts and give the synonymy of this somewhat ill used plant. 
The moss was fully and elaborately described, and very care- 
- fully figured, in the volume of the Transactions quoted above, 
under the name of Didymodon Jenneri, in an article by Howie 
This name is sometimes cited (e. g. Limpr. Laubm. Deutschlands, 
1, 290) as Did. Jenneri Schimp. Mss., Howié: but there seems n° 
_ reason to adopt this form of reference. As [ understand it, the 
latin description was drawn up by Schimper, and the Plate de 
_neated by him, Howie only adding the English translation of 
. the former.In this case the reference should be either Didymodon 
Jenneri Schimper et Howie, or . D. Jenneri Schimper ex Hov 
- In a subsequent issue of the : 
Wilson has a note explaining that 
ransactions (Vol. X, _p. 435 
