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



i 



Very common on basaltic rocks on the sea-shore and ascends from there in the deep river- 

 beds np to the height of 1000 ni. Fonnd fertile only higher up the Cameroons Mountain, for 

 instance in the vicinity of Bomana, 600 — 700 m. above the level of the sea. Growing in väst, 

 nsually green tnfts. 



32 22 22 



Fig. a, folia — ; b, capsula cum operculo — ; c, capsula deoperculata — . 



Pl. 00, fig. 38, planta magn. nat. 



Anoectangium afro-compactum G. Muller n. sp. in litt. 



Dioicum, densissime casspitosum, cirspitibus superne lutescente viridibus, medio et 

 inferno tomento denso ferrugineis "el umbrinis, pulvinatis, expansis; caulis pergracilis, 

 erectus, usque ad 4 cm. longus, strictus vel subflexuosus, interdum simplex, plerumque 

 dichotomus, superne ramulosus, e basi fere usque ad apicem dense radiculosus, dense 



foliosus; folia sicca appressa, subspiraliter torta, humida stricta, erecto-patentia, usque ad 

 l,i mm. longa et 0,27 mm. lata, lanceolata, acutissima, subcarinata, marginibus planis vel 

 uno latere saltem subreflexis, papilloso-erosulis, nervö valido, basi 0,038 mm. crasso, dorso 

 papilloso, cum apice desinente vel infra summum apicem evanido; cellulce rotundate 

 quadratae, dorso minute papillosse, basales nervurn versus rectängulae, omnes parietibus 

 incrassatis; bractece perichwtii erectae, convolute vaginantes, lata?, summo subito contracta?, 

 longiuscule cuspidatae, accutissimas, nervö ad basini cuspidis vel paullum altius evanido, 

 cellulis inferioribus subelongatis, superipribus brevioribus, subrhombeis, omnibus la3vissimis; 

 seta erecta, stricta, usque ad 8 mm. älta et medio 0,07 mm. crassa, straminea, laavissima; 

 theca erecta, ovalis, usque ad 1,4 mm. longa et 0,7 mm. lata, brunnea. Isevissiina; fiores 

 feminei laterales, sat numerosi; flores masculi plerumque numerosi, laterales vel terminales 

 in innovationibus dispositis; cetcra ignota. 



Habitat in Camerunia in rupibus, ubi in montibns Camernnensibus 2260 metra supra mare 

 m. Jnlio a. 1891 c. fr. vetustis legi. 



In size and habit resembling A. compactum Schw., but more densely tufted, with more gra- 

 cile stems, and the leaves shorter and more erect and conferted. 



Found only above the forest-line. 



