Marchantia. franz stepham. spegies hepaticarum. 524 



purpurea, ore parvo contracto. Capitula mas. palmatifida, disco integro 

 magno, lobis 8, disci diametro cequilongis, leniter divergentihus, basi 

 elobulata. 

 Hab. Japonia (Jnoue, Faurie). 



— 47. Marchantia disjuncta Sull. Musci AUegh,, p. 67. 



Mediocris, viridis, postice fusco-rubescens. Frons ad 25 mm. longa, 

 5 mm. lata, valida. Costa optime producta, sensim in alas tenues atte- 

 nuata. Epidermis tenerrima. Stomata parva, bene prominula, ore inlerno 

 parvo 5 cellulis plano-conicis circumdato. Appendicida squamarum 

 magna, late ovata, acuta, rubescentia, margine eroso-denticulata vel sub- 

 ciliata, cellulis majusculis subsequimagnis formata. Pedunculus carpoce- 

 phali validus, ad 2 cm. longus, nudus, apice paleis ovato-oblongis varie 

 laceratis purpureis barbatus. Capitula fem. magna, 9 lobata, disco integro 

 magno, convexo, lobis decurvulis, sinii obtuso discretis, linearibus. apice 

 cuneatim dilatatis, rotundato-truncatis; lobi basales sinu lato discretis, 

 hastatim divergentibus. Involucra hyalina, breviter lobulata, lobis pauci- 

 dentatis, dentibus triangulatis parvis. Capitula mascula femineis minora, 

 brevius pedunculata, palmatiflda, lobis sub 8, geminalim approximatis, 

 ad medium liberis; lobi basales late divergentes. 



Hab. America se^tentr. : Alabama, Arkansas, Texas, haud rara. Mexico 

 (C. Miiller, Stone, Bourgeau, C. Mohr), Cuba (Wright), Jamaica (Wilson, 

 James). 



^ 48. Marchantia Schadenbergii St. n. sp. 



Minor, fusco virens, poslice rufescens. Frons ad 3 cm. longa, 3 mm. 

 lata, medio valde incrassata; costa tamen haud producta, plano con- 

 vexa, sensim in alas attenuata. Epidermis cellulis eequaliter incras- 

 satis valida. Stomata parva, ore interno magno, 4 cellulis angustis 

 circumdato, Appendicula squamarum purpurea, oblonga, margine regu- 

 lariter longeque fimbriata. Pedunculus carpocephali ad 12 mm. longus, 

 tenuis, paleis filiformibus hirtus, apice similiter barbatus. Capitula 

 fem. usque ad basin fere 9 fida, lobis planis, ex angusta basi 

 ampliatis, apice truncatis. Involucra integerrima, crispata, cellulis 

 oleiferis ubique creberrime punctata, paleis lanceolatis ovato-acumi- 

 natis et dentatis tecta. Perianthia purpurea. Capitula mas. asym- 

 metrica, palmatim sexfida, lobis profunde solutis, contiguis, ala marginali 

 crispata. 



Hab. Insula Ltizon (Schadenberg). 



186 



