Prionolejeunea. kiianzstkimiani. si-kciks iiki'ATI(;aki m (Vol.VI, iy2:*) 



floralia spalhulala, i)orianlhia diiph) vel Iriplo brcviora, niargi- 

 nibus celluloso-crenulatis ; iubulus parvus, obovato-obconicus, ad 

 2/3 vel ad medium solutus obtusus. Amphigaslrium florale perian- 

 thio triplo brevius, obovato-obconicum, apicc ad 1/4 inciso-bih)- 

 batum, sinu recto, lobis Iriangulatis acutis. Androecia dcsunt. 

 Hab. Guijana gallica ((lalHot legit). 



64. Prioiiolpjeuiiea mada(|asearieiisis Sl. n. sp 



Monoica exigua, dilute brunnoa, flaccida foliicohi. Cnulis ad 

 15 mm. longus, parum longeque ramosus. Folia caulina contigua, 

 oblique patula, valde concava, in plano ovata (0,75 mm. longa, 

 medio 0,5 mm. lata) symmetrica, apice acuta vel apiculata, basi 

 antica truncata caulem vix tegentia, marginibus ubique dense 

 minuteque serratis. Cellul^e superse 18x27fx, basales 18x36fji 

 parietibus validis. Lobulus magnus, folio triplo brevior, oblongus, 

 carina oblique adscendens arcuata, amplo sinu in folium excurrens, 

 apice quam basis triplo angustiore, oblique truncato, angulo obtuso, 

 sub apice constrictus. Amphigastria caulina majuscula, caule 

 duplo latiora, subrotunda, transverse inserta, apice ad medium 

 biloba, sinu recto, lobis triangulatis acutis. Perianthia obconica 

 (1,17 mm. longa, apice truncata 0,75 mm. lata), plicis posticis 

 longe decurrentibus, in unam latam cdnfluentibus, apice truncata, 

 irregulariter dentata et spinulosa, ceterum. nuda, rostro parvo. 

 Folia floralia perianthio duplo vel triplo breviora, spathulata, 

 irregulariter denticulata, apice acuta vel obtusa ; lobulus magnus, 

 folio parum brevior, ad 1/3 vel ad medium solutus, lanceolatus 

 acutus. Amphigastrium florale perianthio duplo brevius, ovato- 

 ellipticum, ad 1/4 bilobatum, sinu angusto obtuso, lobis triangulatis 

 acutis porrectis. Anclroecia in caule terminalia, parva, bracteis 

 trijugis. 



Hab. Madagascar (Leloutre legit). 



65. Prionolejeunea pyriflora St. n. sp. 



Monoica mediocris gracilis flaccida rufescens, aliis hepaticis 

 corticolis consociata. Caulis ad 4 cm. longus, irregulariter ramosus, 

 ramis remotiusculis, plus minus longis, longioribus paucipinnu- 

 latis. Folia caulina conferta, recte patula, parum concava, in plano 

 ovata (1,25 mm. longa, medio 0,9 mm. lata) subsymmetrica, apice 

 late rotundata, basi antica truncato-rotundata, integerrima. 

 Cellulx superse 18 x 18 fA trigonis magnis nodulosis, basales 27 x26fjt 



389 



