56 



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



låter alia subdisticha, remota, patula, ovalia, apiculata, meclio et superne plana, basi sub- 

 carinata, decurrentia, usque ad 3,3 mm. longa et 1,6 mm. lata, pallide vinosa vel interdum 

 pallide viridia, marginibus integerrimis, nervö purpureo, stricto, basi 0,076 mm. crasso, 

 plus minusve longe, plerumque ad medium folium producto; cellulis magnis, sat elongatis, 

 inanibus, marginalibus multo longioribus et angustioribus intensiusque vinose coloratis, antica 

 et postica parva, superne plerumque multo majora, oblonga vel breviter lanceolata, longi- 

 uscule acuminata, inferne carinata, longe decurrentia, nervö ad medium folium producto; 

 folia perigonalia 4 — 5, e basi vaginante patula, interiora minora, interdum leniter recur- 



vata, externa magna, lineari-lanceolata, inferne medioque canaliculata, marginibus planis 

 integerrimis, nervö longe supra medium folium evanido, cellulis ut in foliis caulinis; 

 bractece perichcetii foliis perigonalibus similes; archegonii numerosi, purpurei; paraphyses 

 vinosa;; planta feminea rarissima, una sola visa; plura non vidimus. 



Not rare from the sea up to a height of 1,000 m., but only in tlie deeply engraved riverbeds. 

 Growing very laxly tufted on rocks of decayed basalt. Usually barren or with male flowers; the 

 female plant is very rare; fertile plants not found. 



18 18 18 45 



Pig. a folia lateralia — ; b folia postica et antica — ; c flos masculus — ; d eellulte raedianse — ; e folia 



. .. 18 

 perigonalia — . 



Pl. I. fig. 11 planta niagn. nat. 





