— ^b88 



Ceratolejeunea Saxbyi, Pearson. 

 Hab. : In coitices, on oichicl roots, Jiala. 8-IX-19 (M. Corbisier). 



Taxilejeunea Nicholsoni, l'i aks. MS. 

 Hal). : In coitiies, on oichid ioikIs, Kala. 8-IX-19 CM. Corbisier). 



Eulejeunea compressistipula, n. sp., Pears. (Fig. VII). 



Flores: Perminuium ; color atioviridis; Ciuspitosuni vel super species largiores replans. 



Caulis siiiiplex vel pauUjraiiujsus; majjnitudine 3 cellularum, niargine hvalinus; radicu- 

 losus usque ad apicein ; Radiculi m fasciculis ]>arvis sub folius inferioribus vel ubi decet. 



Folia allernala vel subopposita, dcnsa. hurizontalia (90°) vel iiatenlo-diveigentia (70": 

 perobovata, angusto-inserla , intégra; apex rDtundalus, margo anleriur qu;e caulem 

 cooperit; celluhi' parvai-, quadratii-, meinbraïKC incrassal;L', sine trigonis vel trigona' 

 indistinclic. 



Lobus 4-5 lobo minor. late-rolundatus; angulus liber acutus vel apiculatus, luinidus ; 

 carina arciiata vel recta, plana 



Folia infenora, minuta, cum caulem perconipressa, circiler ejusdem atnplitudinis. ovata. 

 per mediam partem vel plus bilida; .segmenti erccti, angusto-acuminati; sinus angusiatus. 

 Cf vel (^ non videtur. 



Inflorescence ? Very small ; dark grecn in colour ; caespitose or creeping on 

 larger species. Stein simple or slightly branched ; 3 cells wide, margin hya- 

 line; radicnlose up to apex; rootlets in small bunches below the underleaves 

 or where they oiiglit to be. Leaves alternate or subopposite, approximate, 

 horizontal (90") to patent-divergent (70"), broadl}' obovate, narrow at inser- 

 tion, entire, apex rotundate, antical margin jnst covering the stem; cells 

 small, quadrate, walls thick, trigones absent or indistinct; lobule 4 to 5 times 

 smaller than the lobe, broadly rotund. free angle acute or apiculate, tumid, 

 keel arcuate or straight, smooth. Underleaves minute, closely compressed to 

 the stem, about as wide, oval, bifid to about the middle or below, segments 

 erect, narrowly acuminate, sinus narrow. No cf or 9 seen. 



Dimensions : Stems ' ^ inch long; .075 mm. diam. ; with leaves i. mm. 

 wide, leaves .55 mm. x .4 mm., lobule .1 mm. x i mm.; brandi leaves 

 .45 mm. X .3 mm.; cells .02 mm.; underleaves .125 mm. X .075 mm.; 

 15 mm. X .1 mm.; segments .05. 



Hab. : Between Kisala and Luodu (Mayombe) ( D' PoM.\). 



Obs. : EvidentI}' near to Lejeunea saccatiloha, St., but much smaller, with 

 relatively much smaller lobules; the peculiarity of the species is that the 

 underleaves are so closely attached to the stems that they appear to be a part 

 of them. 



