32 



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



18 mm. longa et 0,36 mm. lata, linearia, breviter acuminata, carinata, elimbata, marginibus 

 basi integris, e parte hyalina folii fere ad apicem triangulariter incrassatis, remote aculeato- 

 serrulatis, serrulis binis, extremurn serrulatis, nervö valido, viridi, basi 0,14 — 0,\a mm. 

 crasso, cura apice evanido, teevi; cellulce basales hyalimv, magnae, rectangula^, circiter 10 

 — 12-seriatae, circiter l 10 longitudinis folii occnpantes, ceterae valde chlorophyllosa*, minu- 

 tissimse, 0,oo& — 0,oo8 mm. magrup, divei'siformes, omnino rotundate subrectangulaB ; bracteoe 

 perichcetii foliis ceteris similes; vaginula cylindrica, 1,3 mm. älta, 0,4 mm. crassa; seta 

 erecta, stricta, 7 — 8 mm. älta, medio 0,3 mm. crassa, purpurea, kevissima; theca erecta, 

 stricta, cylindrica, 3, o mm. longa et 0,5 mm. crassa, la^vissima; operculum hernispheericum, 



0,9 mm. altum, longe stricteque rostratum; calyptra pallida, plicata, superne longitudina- 

 liter fissa, summo serrulate scabra. 



Habitat in Camerunia in truncis arborum, nbi ad Ekundu Ndene emporium m. Septembri 

 a. 1891 c. fr. et ffi. Martio a. 1892, ad Ndian emporium m. Martio a. 1892 legi. 



Very common near the deltas and lower parts of the rivers. Usually forming very large 

 tufts, sometimes growing amongst otber mosses. Fruit rather rare. 



87 87 87 1 8 



Fig. a, pars superior folii — ; b, cellul?e basales — ; c, sectio folii — ; d, capsula et operculum — . 



Pl. 00, fig. 23, planta ruagn. nat. 



Calymperes (Eucalymperes) rupestre G. Muller n. sp. in litt, 



Laxe et expanse cajspitosum, csespitibus lutescenti viridibus, hand nitidis; caulis 

 leviter arcuatus, usqne ad 2 cm. longus, simplex vel pauci-ramosus, basi radicnlosus; folia 



