80 REVUE BRYOLOGIQUE 



que dentata, cellulis basilaribus rectangulis, caeteris linea- 

 ribus angustis. Flores in caule ramisque siti, masculus 

 minutissimus in vicinia faeminci. Fol. perig. 5-6, ovata, 

 concava, enervia, cuspidata ; antheridia 1-3, paraph. 1-2. 

 Fol. perich. 10-12, 3-4 exteriora ovata, cuspidata, enervia, 

 ceetera lanceolata, longe acuminata subcostata, ad subulam 

 remote dentata. Vaginula paraphysibus nonnullis obtecta. 

 Capsula in pediceflo rubente 0,009-0,010 longo minuta, 

 cylindrico-curvata, inclinata, fusca, sub ore vix constricta. 

 Perist. ext. dentes 16, conniventes, pallide rubri intus 

 valde trabeculati; int. processus dentes aequilongi, integri, 

 in membranabasilaridimidiam partem perist. ext. aequante 

 positi. Annulasnullus? Calyptra (junior) straminea, latere 

 fissa. Operculum oblique rostratum. Sporse ? 



Arbres des berges du Fleuve rouge entre Ba-Hoa et Pho- 

 Lu, cercle de La-Kay, 30 mars 1900. 

 Cette espece se distingue de toutes celles connues jus- 



qu'a ce jour par ses cellules presque completement lisses. 

 Le genre Taxithelium est nouveau nouveau non seule- 



ment pour le Tonkin, mais encore pour 1' Asie continentale ; 



I'espece decouverte par M Moutier est en outre la plus 



septentrionale des 49 qui le composent. 



Thuidium Bonianum Besch. c. fr. — Avec le precedent 



Hcpatiques 



Anthoceros communis Steph. 

 Cheilolejeimca viridis Steph. 

 Chiloscyphus argiitv^s Nees. 

 Madotheca 7 



Marchantia angusta Steph. 

 Riccia micraspora Steph. 



(A suivre) General Paris. 



Bryological Notes (continued). 



3. Bryum ( Rhodobnjum ) roseum Schreb . and B. 

 (R/iodobrj giganteum Ilook. 



These two species are, apparently, frequently confused 

 with each other. This is perhaps due to the fact that both 

 species are usually sterile, and although U. gigantcinn in 

 many cases attains a size not met with in li. roseum, in 

 other examples the size of the stems and leaves, and the 

 whole habit, are those of B, roseum, Miiller (Syn, Muse. 

 Frond. 1, p.' 248) has pointed out that in B. giganteum 

 there is a double row of teeth to the margin ofthe leaf, while 

 in B. roseum the margin is simply serrate. As^ however, 



