— H 82 



Lopholejeunea Vermoesenii, n. sp. Pears. (Fig. IV), 



Monoicum ; inagnitudo média; color subnigrï; ca'spilosum. C^aulis radiculosis, radicuhc 

 rcclii- in fasciculis J-io; Filamenla coloris ubscuru' i-x base folioruni inferiorum, nonnun- 

 quain ux lobis; iirfgulariter bipinuata magniiudinc 4 cellularuin, quarum membrana suni 

 hima. Folia alternata vel suboppusila, honzontalis (90 " „) vel patento-divergentia (70 " 0) 

 palulosa, plusiiiinusve gibbosa, inibricala vel approxiinata, ovala, l'alcata, intégra, apex 

 rolundalub, basis anlerujr quie caulem cooiierit ; celluUruiii inagniludo inedia 4, 5 vel 6 

 faciès habentiuin, quadratu' vel obloagu-quadratie, lri){OD:e minuscuhe et indislincUe; lubu- 

 lus magis erecius quam lobus, palento-divergens (70 °/o) vel païens (50 "/.) orbicularis, 

 tuniidus ia base seu in parte superiore arcli coniplanalus, angulus liber aculus. Folia infe- 

 riora ter vel quater caude largiora, sub-rolunda, nia^is lata quam longia, intégra. Flores Q 

 ttriiiinales in raniis longis vel brevibus, sine innovationibus. Bracutic : lobus (jvalus, den- 

 latus ; apex roi undala ; lobulus quin(|uies vel sexies lobo parvii ir, ellipticus, apex obtusus ; 

 bracleola obovata, inlegra. l'erianlhus per meJium bracleas excedens, largiter pyriformis, 

 quadrangulus, 2 a latere 2 a posleriore, qui a lalere sunt anguli paulisper allali ; qui vero a 

 posterioie sunt laciniati. Lacine;u hacent 6-12 cellulas in longitudine, 3 vero in basi, faciès 

 anteriores planis, raro carinata, nonnunquani suhlaciniata Sine rostello. Amenlula in ramis 

 longis vel brevibus; bracteie lobus ovalis rotundatus ; lobulus minus ovalis, apex obtusus 

 vel acutus 



Mouoicous. Médium size; daik biowii in colour; caespitose. Stems radi- 

 culose, lootlets sliiiight, in Ijunches of 5 to lo thick dark coloured threads, 

 proceeding from Ihe base of the underleaves, sometimes a few from the 

 lobule; inegularly bipimiate, 4 cells wide, walis ol'cells lirm. Leaves alternate 

 or sub-opposite, iionzontal (90") to patent-divergent (70°), patulous, slightly 

 convex, inibricate or approximate, ovate, faicate, entire, apex rotundate, 

 antical base covering the stem; cells médium size. 4, 5 and 6 sided, quadrate 

 or oblong-quadrate, trigones very minute and indistinct; lobule more erect 

 than the lobe, patfnt-divergent (70°) to patent (50° , orbicular, tumid below, 

 upper ])orlion narrowly com]ilanate, free angle acute. Underleaves 3 to 

 4 times broader than the stem, subrotund, broader ihan long, entire. Female 

 flowers terminal on long or short branches, with no innovations; bracts, 

 lobe ovate, dentate, apex rotundate, lobule 5 to 6 times smaller than the 

 lobe, elliptic, a]iex obtuse; bracteole obovate, entire; ])erianth iirojecting 

 half beyond the bracts, broadly pyriform, 4 angled, 2 latéral and 2 pôstical, 

 the two latéral angles slightly wiiiged, thèse with the two pôstical angles 

 fringed with lacinictj, 6 to 12 cells long, 3 cells wide at the base, antical side 

 plane, rarely with a slight keel, sometimes a few laciniic are to be found on 

 it. No beat. Amentula on long or short branches : bracts cf, lobe oval, 

 rotuudate, lobule rather smaller, oval, apex obtuse or acute. 



Dimensions : Stem i inch.; .125 mm. diam.; with leaves .7^ mm. to 

 1.25 mm. wide; leaves j^ mm x .5 mm , .65 mm. x 5 mm.; cells .03 mm.; 

 bracts .85 mm. x .5 mm. ; bracteole .65 mm. x 4 mm. ; ])erianth. 75 x .5 mm. 

 to I. mm. X -J^ mm. maie bract, lobule .3 mm. x .2 mm., lobule .25 mm. 

 X .15 mm.; maie bracteole .2mm. X .15 mm. 



Hab. : Temvo (Ma}'ombe). 10-II-19 (Dr. C. Vermoesen). 



Obs. : According to Stephani's description Lof)liolejeunea atra (MlTT.), 

 has a narrowly pyriform perianth, pôstical keels entire, bracts ligulate, 

 bracteole sub-rotund. 



The présence of lacinic on the face of the perianth counects it with Lophb- 

 lejennea lepidoscxpha, Pears., from which it differs iu many respects. 



