(VOL. V, 1913). franz stephani. species hepaticarum Ceratolejeunea. 



obtusa, margine postico substricto, antico bene arcuato, ad medium 

 inserta, basi antica truncato-rotundata. Cellulae superse 18 |i, basales 

 18X27 ^,trigonissubnullis. Lobulus parvus, obovato-triangulatus, folio 

 quadruplo brevior, recte patens, carina leviter arcuata, levi sinu in 

 folium excurrens, apice quam basis subduplo angustiore, emarginato, 

 angulo spinula armato. Amphigastria caulina magna, caule quintuplo 

 latiora, subrotunda, basi cordata, ad medium inciso-biloba, sinu angusto, 

 lobis late triangulatis acutis. Perianthia obovato-oblonga, apice longe 

 cornuta, cornibus attenuatis, obtusis divergentibus, posticis vixangus- 

 tioribus subporrectis. Folia floralia parva, perianthio duplo breviora, 

 obovata obtusa ; lobulus subduplo brevior, anguste lanceolatus obtusus, 

 ad medium solutus. Amphigaslrium llorale foliis floralibus aequilongum, 

 obovato-oblongum, lobulis breviter coalitum, ad medium inciso-bifidum, 

 rima angusta, lobis angustis obtusis. Andraecia parva, sessilia, bracteis 

 trijugis. 



Hab. Africa occidentalis. Kainerun. 



Taxilejeunea S. 



Plantae mediocres, saepe parvae vel exiguae, rarius elatae, graciles, 

 vulgo pallidae, corticolEe vel foliicolae, repentesvel prostratae,inranurlis 

 arboruui nidulantes vel pendulae. Caulis irregulariter ramosus, ramis 

 brevibus, paucis longioribus mixtis, interdum fasciculatim ramosis 

 apiceque longe simplicibus. Folia caulina eontigua vel parurn imbricata, 

 ovata, rarius oblonga vel triangulata, obtusa vel acuta, plus minus 

 symmetrica, integerrima vel armata, marginibus saepe crenulatis, ad 

 medium inserta, basi antica truncata, rarius rotundata. Folia ramu- 

 lina multo minora. Lobulus folii ovatus vel oblongus, apice truncatus, 

 angulo obtuso, rarius apiculato vel spinifero, saepe obsolelus. Amphi- 

 gastria caulina majuscula, saepe magna et maxima, vulgo transverse 

 inserta, rarius cordata, semper bifida. Inflorescentia monoica vel dioica. 

 Perianthia in ramulo parvo terminalia, uno latere innoyata, ob inno- 

 vationes repetitas seriata, homotropantha, angusta vel oblonga vel 

 clavata, ssepe cylindrica, vulgo quinque plicata, plicis integerrimis vel 

 varie arrnatis. Folia floralia caulinis semper minora, saepe pusilla; 

 Lobulus bene evolutus angustus, saepe parvus vel nullus. Amphigastria 

 floralia semper bene evoluta, lobulis breviter coalita, rarius libera, apice 

 450 



