DE MADAGASCAR. 377 



VII. THAMNIEiE. 



(Brotherus, Musci, p. 85 1.) 



POROTHAMNIUM Fleisch. 

 (Brotherus, Musci, p. 1229.) 



Sect. I. Pseudoporotrichuji (Broth.) Fleisch. 

 ( Brotherus , Musci , p. 1229.) 



1 . Porothamnium pentï «fronde um (G. Miïll. ) Gard., conib. nova. 



Porotrichcm penmfrondeum G. Miïll. , in Liniicea, XL, p. 271 (1876). 



P. pexn.eforue G. Mûll. , in Linnœa, XL, p. 272 (1876), et in Hedwigia, XXXVIII, p. 128 



(i899)- 

 P. madagassdm Kiaer, apud Besch., FI. Bryol. Réunion, etc., in Ami. Se. nat. Bot., 6 e se'r., X, 



p. 332 [191] (1881). 

 P. subsecdndum Kiaer, apud Wright, [ajournai of Bot. , XXVI , p. 266 (1888), nomen solum ; 



Ren., Prodr., p. 208 (1897). 

 P. pexn.eforme var. Chauveti Ren. et Card. , Musci exot., in Bull. Soc. bot. Belg., XXXIII, 



2 e part., p. 126 [i52J (i8g5). 

 Thaîlmcm penn.efrondech Kindb., in Hedwigia, XLI, p. 233 (1902). 

 Th. madagassum Kindb., op. cit., p. 236 (1902). 



Porotrichcji Chacvetii C. Miïll., apud Brotherus, Musci, p. 855 (1906). 

 P. sigmateixoides G. Miill. , in sched. , fide Kindberg. 



Caulis secundarias frondosus brevissime stipitatus Jlavescens splendens tripartitus, 

 ramijicationibus ob ramulos simplices vel parum pinnatos bipinnalis summitate in 

 innovationem eapillarem remote pinnatam protractis compressis disticlmceo-foliosis 

 apicem versus angustatis ; folia stipitis pauca minuta remota patenlia , ramea e basi im- 

 pressa celîuUs alaribus paucis fuscatis quadratis incrassalis ad impressionem instructa 

 laliuscule obîongata breviter acuminata cymbiformi-concava margine erecto vix invo- 

 lutacea, apicem versus remote grosse dentata, nervo tenuijlavido ultra médium evanido 

 interdum obsolète furcato , cellulis ellipticis distinctis mollilus chorophyllosis ; folia ex 

 summitate ramuli cuneato-oblonga apice dentibus paucis grossis divisa. Cœtera ignota. 

 (G. Millier, in Linnœa, XL, p. 271.) 



Dans sa description du P. pennœforme du Cap, C. Millier décrit ainsi les 

 organes de fructification : perichœtialia pauca e basi longe vaginata appressa 

 laxiuscule longiuscule reticulata pellucîda obsolelinervi vel enervi convolutacea in 

 laminam longe subulato-acuminatam integerrimam lineari-areolatam protracta ; theca 



MOUSSES DE MADAGASCAR. 48 



IMPRIMERIE SATIOXALE. 



