Ptychocoleus. franz stephani. species hepaticarum (Vol. V, 1912). 



Ptychocoleus Trevis, 1876 



(Acrolejeunea Spruce, 4884) 



Plantae mediocris flaccidae corticolae vel rupiculae, spongiose caespi- 

 tantes, rufo-brunnaee vel flavo-rufescentes. Caulis 2-7 cra. longus, 

 irregulariter ramosus, ramis sparsis, interdum fasciculatim approxima- 

 tis, aliis parvis decurvis flagelliformibus, radicantibus. Folia caulina 

 imbricata, recte vel oblique patula, concava, obtusa rarius acuta, inte- 

 gerrima. Lobulus magnus, varie armatus, denticulatus vel mamillatus, 

 inflatus, apice truncatus. Cellulse foliorum majusculae, semper valide 

 incrassatae. Amphigastria caulina obcuneata, rotunda, transverse vel 

 sinuatiminserta, integerrima. Perianthia inramis terminaliainnovatione 

 nulla, pluriplicata, plicis 5-10, infiatis, nudis, rostro parvo. Folia floralia 

 plurijuga, caulinis similia, interdum acuta armata, lobulo magno lan- 

 ceolato acuto, integro vel armato. Amphigastria floralia infima caulinis 

 similia, supera sensim aberrantia, suprema saepe bifida. Androzcia in 

 ramis terminalia vel ex apice vegetativa. 



Africa 



1. Ptychocoleus Vanderystii St. n. sp. 



2. Ptychocoleus flagelliferus St. n. sp. 



3. Ptychocoleus amplectens St. 



4. Ptychocoleus convexus St. 



6. Ptychocoleus emergens (Mitt.) St. 



7. Ptychocoleus floribundus St. n. sp. 



8. Ptychocoleus Henriquesii St. n. sp. 



9. Ptychocoleus occultus St. 



10. Ptychocoleus pusillus St. n. sp. 



11. Ptychocoleus Renauldii St. 



12. Ptychocoleus madagascariensis St. n. sp. 



13. Ptychocoleus inermis St. n. sp. 



14. Ptychocoleus Quintasii St. n. sp. 



15. Ptychocoleus Pappeanus (Nees) St. 



16. Ptychocoleus Molleri St. 



19 



