KONGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 28. N:0 2. 



Fissidens (Eufissidens) nematopteris C. Muller n. sp. in litt. 



Caulis erectus, usque ad 5 cm. altus, humiditate strictus, siccitate fiexuosus et 

 summo arcuatus, flavo-brunneus, plerumque simplex, interdum dichotome raraosus, inferne 

 parce rubescente radiculosus; folia multi-juga, patentia, pallide viridia, sicca circinate in- 

 voluta, elongate lineari-lanceolata, breviter et late acuminata, usque ad 2,9 ram. longa et 

 0,5i ram. lata, elimbata, marginibus superne medioque ob cellulas prominentes minute 

 crenulatis, inferne integris, nervö valido, basi 0,063 mm. crasso, superne flexuoso, foliorum 

 inferiorum rubescente, superiorum flavo-viridi, infra apicem evanido; lamina vera ad 2 /3 

 folii producta, apice rotundato; lamina dorsalis supra basin costa? rotundate oriunda; 

 cellula su]>eriores minutissimae, 0,007 rara. diara., insequales, plerumque rotundatse vel 

 hexagoinc, obscunv, inferiores lamiiue dorsalis diversiformes, plerumque subquadratie vel 



- 



hexagomr, basales lamina- vera- et apicalis pellucida?, juxta marginem angustse, costam 

 juxta majores, omnino rectangula'; cetera desunt. 



Habitat in Camerunia in saxis rupibusque rivalibus, nbi prope Bomanam, pagnm c. 670 

 nietra supra mare, ni. Januario a. 1JS91 legi. 



Found only in the deeply excavated river-beds on the west side of the Caraeroons Mountain, 

 but not in its lower parts. Very common in the vicinity of Bomana, but never abundant. Barren. 



32 200 200 

 Fig. a folium — ; b cellulae apicales ; c cellulre basales laminae dorsalis ; d cellulae basales juxta 



, • • 200 ,, , , • , • • .200 



nervuin laiiunn? ver£E sit;c ; e celluljc laiiiiiiji- verae basales inxta mararmem sitse . 



1 J ö 1 



Pl. II. tig. 1 planta 



1,5 



