(VOL. V, 1913). FRANZ STEPHANi. SPECIES IIEPATICAHUM Cerutolejeunea. 



inserta, apicc acula. Celluln' supera" 18X18 [x, basales 36 X 36 [i, 

 trigonis parvis ; ocellus basalis 27 X-^S [i. Lobidus parvus, folio quin- 

 tuplobrevior, obliqueadscendens, oblongus, duplo longiorquarn latus, 

 carina bene arcuata, levi sinu in folium excurrens, apice quam basis 

 duplo angustiore, recte truncato, angulo acuto. Amphigastria caulina 

 magna, caule quintuplo latiora, remiformia, transverse inserta, apice 

 ad V^ inciso-biloba, rima angusta, lobis acutis. Perianthia magna, ex 

 angusta basi obovata, compresso-inflata, quadricronuta, cornibus perian- 

 thio duplobrevioribus, posticis porrectis, anticis late divergentibus, om- 

 nibus angustis, attenuatis obtusis. Folia /loralia perianthio aequilonga, 

 basi connata, lanceolata, acuta, sub apice remote angulata, lobulusjequi- 

 longus, duploangustior, profundesolutus, acutus, integerrimus. Amphi- 

 gastrium florale obovato-oblongum, lobulis utrinque alte connatum, 

 apice ad V-i inciso-bifidum, rima angusta, lobis acutis. Androecia ignota. 

 Hab. Africa occidentalis. Kamerun. 



47. Ceratolejeunea Kegelii (L. et G.) St. 

 Syn. : Lejeunea Kegelii L et G. Linnaea 1851. p. 635. 



Dioica major gracillima, in foliis repens. Caulis ad 3 cm. longus, 

 irregulariter multiramosus, ramis confertis, frondem optime clausam 

 formantibus. Folia caulina imbricata, recte patula, parum concava, in 

 plano late ovata (0,83 mm. longa, 0,67 mm. lata) asymmetrica, margine 

 postico stricto, antico valde arcuato, apice obtusa, irregulariter angu- 

 losa, brevi basi inserta, basi antica truncata. Cellulai superse 18 X 18 {x, 

 basales 18x27 [x, ocellis tres, aggregati 27x^5 [x. Lobulus parvus, 

 folio quadruplo, brevior, recte patens, late ovatus, carina leviter 

 arcuata, levi sinu in folium excurrens, apice quam basis parum angus- 

 tiore, recte truncato, angulo spinula hamataarmato. Amphigastria cdw- 

 lina parva, caule vix latiora, subrotunda, sinuatim inserta, ad medium 

 biloba, rima angusta obtusa lobis triangulatis porrectis acutis. Perian- 

 thia (juvenilia) obovata, apice breviter quadricornuta, cornua vix 

 duplo longiora quam lata, obtusa erecta. Folia floralia perianthio duplo 

 breviora, obovato-oblonga, acuta, integerrima ; lohulus duplo brevior, 

 anguste lanceolatus, acutus vel obtusus, ad medium solutus, superne 

 irregulariter angulatus. Amphigastrium florale lobulis parum longius, 

 apice ad V^ inciso-bilobatum, sinu recto, lobis late triangulatis acu- 

 minatis porrectis. Androecia desunt. 



Hab. Guiana. Paramaribo. 



48. Ceratolejeunea Karstenii. St. n. sp. 



Sterilis, major, rufo-brunnea, aliis hepaticis consociala. Caulis ad 



420 



