10 



P. DUSEN, MOSSES FROM THE WEST OOAST OF AFRICA. 



basim versus fasciculatim ramosus, superne ramulosus, floribus masculis terminalibus capitu- 

 ligerus, remote foliosus, basi radiculosus; folia usque ad 2,9 mm. longa et basi 0,3 mm. 

 crassa, siccitate erecta vel erecto-patentia, strictiuscula vel vage curvata, humiditate e basi 

 vaginante patentia, strictiuscula vel arcuata, haud secuuda, e basi sensim attenuata, subu- 

 late elongata, acutiuscula, cariuata, margiuibus inferne paullum reflexis, ceterum planis, 

 summo tantum ob cellulas prominentes erosulis, ceterum integerrimis, nervö valido, basi 

 0,09 mm. crasso, laevissimo, infra summum apicem evanido, cellulis elongatis, subrectangulis; 

 folia perigonalia longiora, e basi lata, convolutaceo-vaginante raptim contracta, longe subu- 

 late elongata, cellulis partis basalis inferioribus subrectangulis, superioribus rhomboideis; 

 antheridia magna, elongate clavata, paullum curvata; paraphyses sat numerosae, tiliformes, 

 cerineas; cetera ignota. 



Habitat in Camerunia in humo, nbi prope Victoriam emporium in insula Mondole m. Augusto 

 a. 1891 legi. 



22 ... 22 .142 142 



Fig. a, folia — ; b, folia perigonalia — ; c, cellulne apicales ; d, cellulse basales - 



Pl. 00, fig. 21, planta raagn. mit. 



Dicranella falcularia C. Muller n. sp. in litt. 



Dense ca3spitosa, coespitibus valde expansis, lutescente viridibus, inferne sordide viridi- 

 bus; caulis erectus, strictus, usque ad 3,5 cm. altus, simplex vel inferne bifurcatus, inter- 



dum superne fasciculatim ramosus, dense foliosus, inferne radiculosus; folia usque ad 

 2,7 mm. longa et basi circiter 0,3 mm. lata, siccitate erecto-patentia vel patentia, stric- 

 tiuscula vel vage curvata vel paullum refiexa, suprema subfalcate secunda, humiditate 

 patentia, strictiuscula vel leniter curvata, suprema subsecunda, elongate triangularia, 

 carinata, margiuibus planis, summo tantum erosulis, ceterum integris, nervö valido, basi 

 0,09 — 0,12 mm. crasso, laevissimo, infra summum apicem evanido; cellula? elongatre, oinnino 

 rectangulaä, superiores ininores; cetera ignota. 



