Marchantia. franz stepham. spegies hepaticarum. 40S 



30. Marchantia parviloba St. in Engler, Bot. Jahrb. 1893, 

 p. 305. 



Magna, tenuis, antice viridis, poslice purpiirascens. Frons ad 6 cm. 

 longa, 6 mm. lata; costa humilis, lata, tertiam latitudinis partem tenens, 

 sensim in alas validas excurrens. Epidermis tenera. Stomata maxima, 

 parum prominula, ore interno magno, 5-6 cellulis plano-conicis .circum- 

 dato. Appendicula squamarum magna, cordata, subrotunda, arcte con- 

 stricta, acuta, margine repando-angulata vel irregulariter dentata, cellulis 

 majusculis, marginalibus duplo minoribus. Pediinculus carpocephali 

 validus, ad 3 cm. longus, nudus, apice paleis filiforraibus longius 

 barbatus; paleseinvolucraleslanceolatse, cuspidatse, integerrimse. Capitula 

 o magna, plano-convexa, disciformia, 9 lobata, lobis sinu rotundato dis- 

 cretis, brevibus, subquadratis, apice truncatis. Involucra hyalina, breviter 

 lobata, lobis fimbriatis. Perianthia hyahna, ore parvo tubuloso pauci- 

 dentalo. Capsula fusco-brunnea, laxe annulata. Sporse 27 {x, flavo-vires- 

 centes. Elateres 720 jj.. Scyphuli magni, minute ciliati, ciliis 3 cellulas 

 longis; cilise similes in externa facie patellse sparsse. 



Hab. Africa orient. in Mte Runssoro (Stuhlmann 2800 m.). 



31. Marchantia viridula L. L. in Lehm. Pug. lY, p. 33. 

 Magna, robusta, viridis, postice fusco purpurascens. Frons ad 5 cm. 



longa, 10 mm. lata, coriacea. Costa angusta, parum producta, sensim in 

 alas validas attenuata. Epidermis tenera. Stomata minora, parum promi- 

 nula, ore interno 4 cellulis plano-conicis circumdato. Appendicula squa- 

 marum maxima, normaliter oblongo-ovata, interdum breviora et magis 

 rotundata, ubique breviler denliculata, celluhs parvis marginata (centrali- 

 bus multo majoribus). Pedunculus carpocephali validus, ad 23 mm. 

 longus, apice paleis lanceolatis dense barbatus. Capitula 9 magna, 9-11 

 lobata, lobis valde devexis, anlice costatis, ad V^ solutis, dense contiguis 

 apice rima angusta breviter incisis, lobulis truncato rotundalis, planis. 

 Involucra hyalina, margine minute crenato-denticulata. Perianthia 

 hyalina, ore parvo integro. Capsula fusco-brunnea, dense annulifera. 

 Sporae 23 ^, flavse. Elateres 060 [i. Capitula masc. femineis minora, 

 palmatifida, brevius pedunculata, 8 lobata, lobis angustis, per paria 

 approximatis, ad medium solutis. Scyphuli breviter denticulati, dentibus 

 2 cellulas longis basi 2 cell. latis. 



Hab. Ins^'^ Mascarense (Rodriguez, Boivin, Armange, Garnier. Ins^ Co- 

 morse (Humblot) Jia</a^a.sca'/" (Pervilie). 



177 



