— b84 — 



Prionolejeunea uncatifolia, n. sp., Pears. (Fig. V). 



Monoicum; parvuni, color viridis vcl pallo-fiiscescens; super hepatica vel muscos reptans. 

 Caulis pinnaïus, perdelicalub, iiiagniludinis 2-3 ccllularum. 



Folia erecla vel ereclo-patenlia, subovato-acuniinata, apiculala, plerumque uncinata, 

 margines paulisper denticulalae, margo anteruir recurvala. undulala quae cauleiii cooperit 

 vcro cauleni non excedcns, margo pt)Sterior nonnunquam paulo decurrcns. Cuticulus planus 

 vel paulo {lapilUisus; Cellula- perniinuta-, rolundalo-quadiala', mcnibrann- crass^a'. Lobulus 

 parvus, circa quinquies lobo parvior, ovatus vel rolundaïus. luniidus, angulus liber, acutus; 

 carcna papiUosa. Folia infcnora bis caule largiorc, oblonga clliplica, per médium bifida; 

 scgmina acuia. Sinus rotundalus. 



Bracteïc foliis minores elliiiticv, per '/s bilidam, segmenli acuti. 



Perianihus in ramis brevibus, sine innovaiionibus per '/, bracteas excedens, largiter 

 pynformis, triangularis, faciès anteriores plana, faciès posieriores perobtuso-cannala, 

 brevirostrata. 



Andrcjecium in amentulis brevibus; braclea; (circa 6 pares) rotundala-; apex oblusus; 

 lobulus parvior. 



Monoicoiis; small ; green to pale brown in colour; creeping on other 

 liepatics or niosscs. Stems pinnatc, very délicate, 2 to 3 ceils wide. Leaves 

 erect to erecto-patent.approximate, oval'-acuniinate.apiculate, oftcn unciuate, 

 niargin niinutcly deuticiilate. Antioal margin recurved, waved, covering the 

 stem, but net extending beyoud it, postical margin sometimes slightly 

 decurrent; cuticle smootb or minutely papillose, cells very minute, roundish- 

 quadrate, walls tliick; lobulo small, about 5 times smallerthan lobe, oval to 

 round tumid, free angle aciUe, keel ])apillose. Lnderleaves twice as broad as 

 stem, oblong, bilid to near the middle, segments acute, sinus rounded. Bracts 

 snialler than the leaves, elli])tic, acuniinate; hibule small, oblong-quadrate. 

 Bractcole elliptic, bilid to ' 5 th., segments acute. Perianth on short branches, 

 with no innovations, projecting ^3 rds beyond the bracts, broadly pyriform, 

 trigonous, antical face flat, postical broadl}- obtuseh' keeled, bealc short. 

 Androecia on short amcntula, about 6 pairs of bracts, bracts round, apex 

 obtuse, lobule smaller. 



Dimensions : Stems " ^ 10 '/^ inch long; diam. .05 mm. ; with leaves .45 mm. 



wide : leaves .35 mm. x .22': mm , .325 mm. X .2mm., .3 mm. x .2 mm.; 



cells 0125 mm ,".oi mm ; underleaves .12-, mm X .1 mm , .1 mm. X 075 mm. 



075 mm. X .05 mm. biatts .3 mm. x 15 mm. ; bracteole .3 mm. X .15 mm. ; 



perianth .45 x .325 mm. ; maie amentula .5 mm. x .2 mm. 



Hab. : Wombali. Aug. 1913 (R. P. H. Vandkrmst). 



Obs. : There is only one Friouolejeiiiiea, which is monoicous, rocorded 

 l'rom the West Coast'of Africa, P. Kifidbergii, St.; this is a much larger 

 plant, with large perianth ( i . mm . X 85 mm. |, bracts ovate, obtuse or acute, 

 jierianth with no beak. 



