402 BULLETIN DE l'herbier boissier. Marchanüa. 



Capsula rufa, trabecülata. Sporse fulvse, scaberulœ, médiocres. Elateres 

 elongali, monospiri^> (teste Spruce). Capitula mascula femineis multa 

 majora, breviter pedunculata, 6-8 radia ta, centre integre parvo, lobis 

 diametro centri duplo longioribus, linearibus, divergentibus, geminatim 

 approximatis. 

 Hab. Andes Peruviani ad fluni. Huallaga (Spruce). 



IV. Capitula breviloba vel subintegra. 



24. Marchantia fusca St. n. sp. 



Magna, fusco-viridis, postice fusco-purpurascens. Frons ad 4 cm. longa, 

 10 mm. lala, margine sœpe crispata, valida. Costa crassa, haud tamen 

 producta, sensim in alas valde attenuatas excurrens. Epidermis tenera. 

 Stomata parva, parum prominula, ore interne parvo cruciato. Appendicula 

 squamarum magna, ovato-rotunda, obtusa, integerrima, cellulis mediocri- 

 biis ubique fere aequimagnis formata. Peduncuhts carpocephali brevis- 

 simus, ad 7 mm. longus, paleis longis purpureis hispidus, apice paleis 

 similibus longe barbatus; palese involucrales lale lanceolatse, longe 

 cuspidatse, apice setacese, valde numerosse confertissimse. Capitula fem. 

 magniludine mediocri, hemisphaerica, omnino elobata, margine perfecte 

 integerrimo. Involucra hyalina, margine profunde lobata, lobis maxime 

 laceratis, fimbriatis. Reliqua desunt. 



Hab. iV. Zealand (Pétrie). 



25. Marchantia paleacea Bertol. Opusc. scient. Bol. I, p. 242. 

 Major, glauco-viridis, marginibus ssepe purpurascentibus, postice haud 



colorata. Frons ad 5 cm. longa, 8 mm. lata, tenuis; costa valida, parum 

 convexa, in alas longe attenuala. Epidermis valida. Stomata parva, parum 

 prominula, ore interno cruciato. Appendicula squamarum magna, cordi- 

 formia, oblusa, irregulariter repando-angulata vel hie ilUc denticulala, 

 cellulis ubique fere sequimagnis, majusculis. Pedunculus carpocephali 

 crassus, ad 4 cm. longus, paleis filiformibus hirtus, apice simihter 

 breviterque barbatus. Capitula $ magna, disciformia, e centre parvo pro- 

 minulo 9 cosLata, costse in lobos continuatas brèves, lato sinu obtuso dis- 

 discretos, apice Iruncatos, planiusculos. Involucra purpurea^ irregulariter 

 breviterque lobata, lobulis pinnatim lacinulatis. Perianthia hyalina, ore 

 parvo plicatim contracte. Scyphuli margine triangulatim lobati, lobis 

 acutis, basi minute denticulatis. Reliqua desunt. 



174 



