KONGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 28. N:<) 3. 

 Habitat in Cainerunia in humo, ubi in insula Mondole ra. Augusto a. 1891 legi. 



22 142 14 '> 

 Fig. a, folia — -; b, cellulae apicales — — ; c, cellulae basales . 



Pl. 00, fig. 22, planta mag», nat. 



11 



Dicranella rivalis C. Muller n. sp. in litt. 



Dioica, laxe caBspitosa, caespitibus parvis, sordide viridibus; caulis erectus vel adscen- 

 dens, usque ad 2 cm. altus, simplex vel dichotomus, densiuscule foliosus, basi radiculosus; 

 folia e basi lata, breviter rectangula, vaginante raptim contracta, valde elongata, capillaria, 



/ 



usque ad 8 mm. longa, patula, crispata, haud secunda, marginibus planis, integerrimis, 

 summo tantum ob cellulas paullum prominentes erosulis, nervö valido, basi 0,09 mm. crasso, 

 partem folii elongatam fere occupante, kevi, infra summum apicem evanido; cellula? api- 

 cales rotundate oblongre, basales elongate rectangula?, céterse breviter rectangula', parce 

 chlorophyllosie ; bractece perichcetii parte vaginante longiores, ceterum foliis similes; vaginula 

 cylindrica; seta erecta, stricta, aureo-flava, usque ad 13 mm. älta et mcdio 0,14 mm. 

 crassa, laevissima, siccitate sinistrorsum torta; theca erecta, stricta, symmetrica, ovato- 

 oblonga, 1,36 mm. älta et 0,eo mm. crassa, siccitate corrugata et subtuberculata, sub ore 

 paullum constricta, sordide viridis, vetusta fusca, annulo distincto; peristomium, simplex, 

 inferne aurantiacum, superne pallidius; dentes 16, 0,374 mm. alti et 0,053 mm. lati, humidi- 

 tate conniventes, siccitate erecti, superne arcuate vel subgeniculate inflexi, e basi ad 

 medium circiter longitudinaliter rugosi, rugis papillosis, paullum infra medium in lacinias 

 binas, dense papillosas fissi; operculum minute conicum, longe subulate oblique rostratum; 



