Marchantia. franz stephani. spegies hepaticarum. 393 



novem lobata, lobis vix acuminalis, subterelibus, papillatis. Involucra 

 usque ad medium radiorum protracla, lobata, lobis profunde bifidis, 

 spinoso-ciliatis, ssepe fere pinnatim spinosis. Perianthia hyalina, oi-e 

 parvo integro. Capsula fusco-brunnea, valvulis crebre annulatis. Sporw 

 13 [1 flavse. Elateres 400 jj.. Capitula <^ minus longe pedunculata, pro 

 more pedunculo IS mm. longo, magis lenui quam in capit. femineo, 

 disciformia, 8 lobata, lobis apice rotundatis, ^dx ad inedium solulis. Sq/- 

 phuli margine breviter lobati, lobis triangulatis, acuminatis, basibreviter 

 spinulosis. 



Hab. EuTopa, Asia et America septentrionalis. Japonia (Sapporo 

 Faurie Makino), Himalaya (Hooker, Dulhie), Java (.Junghuhn), Alaska 

 (Krause), Costarica (Pittier), Labrador (Ahles), Acores (W. H. Brown), 

 California (Bolander), Caucasns (Levier). 



5. Marchantia tabularis Nees. Hep. Eur. lY, p. 71 . 



Syn. : M. Berteroana L. et L. in Lehm. Pug. YI, p. 21 (teste Schiflfnei). 



Major, tenuis, viridis, margine rubescens; costa bene evoluta et mullo 

 crassior quam alse. Frons ad 4 cm. longa, 10 mm. lata. Stomata parva. 

 majora lamen quam in M. polymorpha, parum prominula, ore interno 

 minimo, 4 cellulis plano-conicis circumdato. Epidermis tenera. Squcvmae 

 posticse hyalinse, appendiculo roseo magno, reniformi, integerrimo, cellulis 

 parvis 3 seriatis marginato. Pedimculus carpoc. ad 3 cm. longus, validus. 

 apice paucis paleis hyalinis filiformibus barbatus. Capitula fem. 9 lobata. 

 majora quani in M. polymorpha, lobis basi angustis superne clavatiin 

 ampiiatis, haud papillatis, profunde discretis, teretibus. Involucra radiis 

 parum breviora, hyalina, breviter lobata. lobis breviter fimbriatis. Per. 

 magna, ore ainplo plicatim contracto integro. Capitula mascula brevi- 

 pedunculata, palmatim sex lobata, lobis late Iigulatis, ad medium soluli>. 

 margine crispatulis. Scyphuli paleUiformes, margine profundius lobali, 

 lobis longe setaceis, basi grosse spinosis. Gapsulce maturse ignotse. 



Hab. Prom. bon. spei. (Preiss. Ecklon. Drege, Rabenhorst fil.), Trans- 

 vaal (Rehmann), St. Helena (W. H. Brown). 



6. Marchantia plicata N. et M. Ann. sc. nat. IX, p. 43. 



Major, viridis, tenuis. Frons ad 7 cm. longa, 8 mm. lata, margine 

 minute plicatula; costa minime producta, ahs vahdis vix crassiore. 

 Stomata numerosa, humillima, majora, ore interno quatuor cellulis 

 anguslis circumdato. Cell. epidermidis tenerse. Squatnse posticse plurise- 

 riatae, late insertee, appendiculis magnis, subrotundis, obtusis, margine 



165 



