18 



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



integris, nunc foliis planta^ feminea? ceterum similia, omnia conformia, nunc superiora 

 multo breviora, in rosulam crateriformem dense conferta, cordata, acuminata, basi caviu- 

 scula, superne subplana, nervö valde valido, in acuminem excurrente, cellulis hyalinis 

 magnis, rectangulis vel interdum pentagonis vel hexagonis, liquidis, basalibus aureobrun- 

 mis, ad V3 — V2 folii longitudinis productis, cellulis chlorophyllosis parvis sat seriatis, ro- 

 tundate rectangulis, dorso minute papillosis, subpellncidis, interiora oorpusculis nuraero- 

 sissirais, puccineoideis, aureo-flavis, dense faseiculatim confertis, ad nervum dispositis ornata; 

 setw singulae vel interdum bina 1 , b' — 7 mm. altse, medio 0,145 mm. crassBe, erectse, stricta?, 

 rubescentes, sicca subcomplanatae et dextrorsum leniter tortae; theca deoperculata 2 mm. 

 longa, 0,4. r . mm. erassa, cylindrica, ereeta, synlnletrica, pallide brunnea, sieea sab ore hand 



eonstricta, scrobiculata; peristomium simplex, dentibus 16, pallide tiavis, humidis conni- 

 ventibus, siccis erectis et superne inflexis, flexuosis, lanceolate subulatis, articulatis, rai-is- 

 sime infcrne paullum perforatis, 0,-2h6 mm. capsulam superantibus, Q,035 mm. latis; oper- 

 culum acute conicum, longe et stricte rostratum; calyptra pallide flavo-brunnea, superne 

 atro-purpurea et papillosa, 1,5 mm. älta, basi profunde lpbata. 



Hal)itat in Camerimia in ramulis arbornm, ubi prope Eknmba-Liongo pagmn m. Oetobri a. 

 1891 et m. Junio a. 1892 et prope Etome pagnm m. Januario a. 1892 c. fr. legi. 



Male flowérs not fonnd. The rosube enclose only gemmffi and are probably transformed 

 female flowers. 



