12 



P. DUSEN, MOSSES FROM TIIE WEST COAST ()F AFEICA. 



mm. läto, cellulis minutissimis, 0,oo54 mm. diam., valde chloropbyllosis, obscuris, plerumque 

 rotundate quadratis, in parte basali laminse verae et apicalis inträ cellulas marginales non- 

 nullis elongatis pellucidisque; sela terminalis, erecta, 1,82 mm. älta, rubescens, medio 0,063 

 mm. crassa, strictiuscula, laevissima; theca ovato-oblonga, 0,7 mm. lata et 0,27 mm. crassa, 

 horizontalis, sordide viridis, ore badia, vetusta sub ore valde constricta; penstomium simplex, 

 basi purpureum, superne pallide flavum; dentes 16, 0,318 mm. alti et 0,037 mm. lati, hiunidi 

 geniculato-inflexi, lateri interiori thecae adpressi, sicci reflexi, patentissimi, inferne vix tra- 

 beculati, sed lamellosi, lamellis sat altis pectinatis, in lacinias binas, valde papillosas, fili- 

 formes fissi ; flores masculi ad basin ramorum dispositi; cétera ignota. 

 Species elegans, surculis hic illic in cortice arborum erescens. 



Habitat in Camerunia, ubi prope Itoki emporium 111. Februario a. 1891 c. fr. legi. 



A particularly fine species, growing rather sparsedly on trunks of trees, which are over- 

 llowed at times; found only on the banks of the Massake and the Jongalove. 



45 , ., , • , 200 „ , , , . , . .200 

 Mg. « foliiim — ; o cellulie apicales ; c cellulae basales ad marginem lamirue verse sitre ; capsula 



humida 



32 



Pl. II. fig. 5 a planta ; b capsula 



32 . .. 200 

 sicca — ; c dcns penstomn . 



Fissidens (Eufissidens) glauculus C. Möller n. sp. in litt. 



Monoicus; caulis erectus, siccitate arena tus, humiditate strictus vel leviter areuatus, 

 usque ad lo mm. altus, pallide flavo-brunneus, infima basi radiculosus, sterilis simplex, 

 fertilis plerumque superne ramis brevibus munitus vel interdum simplex; folia 

 planta? sterilis patula, usque ad 16-juga, infera parva, sat subito sursum majora, 

 usque ad L,8 mm. longa et 0,3 mm. lata, glaUca, late lanceolata, sicea secunde 

 arcuata, marginibus revolutis, humida, strictiuscula, marginibus liaud vel vix 

 reflexis, acuta, superne subundulata, nervö strictiusculo, excurrente, basi 0,027 

 — 0,(140 mm. crasso, limbata, marginibus sumino et basim laminae dorsalis versus 

 minutissime erosulis, ceterum integerrimis, cellulis valde chlorophyllosis, ob- 

 seuris, minutissimis, superioribus 0,0027 — 0,003 mm. diam., inferioribus paullum 

 majora, diversiformibus, plerumque rofundis vel rotundate subquadratis; lamina 

 rera eirciter ,; 5 folii oecupans, oblique truncata, acuta, perfecte limbata; la- 

 mina apicalis limbata, limbo infra apicem evanido; lamina dorsalis plerumque 

 infra basim costae rotundate oriunda, limbata, limbo infra apicem et longe supra 

 basin folii evanido; vag initia cylindrica, umbrina, 0,272 mm. älta; seta terini- 

 o nalis, rubescens, medio 0,09 mm. crassa, erecta,, basi subgeniculata, flexuosa, 



5 — 7 mm. älta, laevissima; theca breviter ovata, horizontalis vel suberecta, 

 sordide viridis, deöperculata 0,618 mm. longa et 0)464 mm. crassa, recta, subasymmetrica, 

 subtuberculata, niaturitate baud, vetusta valde sub ore constricta; peristomium simplex, 



