Ptychocoleus. franz stepham. species iiepaticarum (Vol. V, 1912). 



parum majora, oblique ovato-oblonga, acuminala acuta, lobidu parum 

 breviore, lineari, parum soluto acuto. Amphigastrium florale anguste 

 spathulatum, apice breviter exciso-bifidum, lobis acutis. Androecia 

 ignota. 

 Hab. Afriea centralis. Congo. 



20. Ptychocoleus parvilobus St. 



Syn. : Acrolejeunea parviloba St. Bot. Gaz. 1890. XV, p. 286. 



Dioica magna olivacea flaccida, in cortice late expansa. Caulis ad 

 8 cm. longus, irregulariter ramosus, inferne ssepe simplex, superne 

 subfasciculatus. Folia cavlina imbricata subrecte patula, in situ late 

 ovata, in plano subrotunda (1,26 mm. longa, 1,1 mm. lata) brevi basi 

 inserta, basi antica truncato-rotundata. Cellulse superse 14x27 [i tri- 

 gonis majusculis, basales vix longiores. Lobulus subrecte patulus, in 

 situ ovato-oblongus, apice triplo angustiore, sub apice constrictus, 

 ipso apice oblique truncatus, angulo acuto, in folii marginem incurvum, 

 excurrens, in 'plano ovatus, apice subrecte truncatus angulo acuto. 

 Amphigastria caulina majuscula, caule triplo latiora, sinuatim inserta, 

 obcuneata, vix latiora quam longa. Peinanthia parva pyriformia, eplicata, 

 inflata, rostro parvo. Folia floralia intima maxima, obovato-oblonga^ 

 obtusa vel acuta, falcato-divergentia, lobulo parvo, triplo breviore, 

 lineari, parum soluto obtuso vel acuto. Amphigastrium florale intimum 

 perianthio aequilongum, anguste oblongum, apice breviter inciso- 

 bifldum, lobis anguste triangulatis acutis. Androecia ignota. 



Hab. Africa orient. Insulse mascarense. 



21. Ptychocoleus Borgenii St. 



Syn. : Arcolejeunea Borgenii St., Hedwigia, 1890, p. 133. 



Dioica magna flavicans, flaccida, in cortice dense depresso-caespitosa 

 iateque expansa. Caulis ad 7 cm. longus, irregulariter pauciramosus. 

 Folia caulina conferta, parum patula, valde concava, margine postico 

 apiceque arcte decurvo, inplano ovato-falcata (1,12 mm. longa, 0,7 mm. 

 lata), apice obtusa, lata basi accreta. Cellulse superse 18X36 [i basales 

 vix majores, trigonis magnis subnodulosis. Lobulus in situ suboccultus, 

 in plano ovato-oblongus, inflatus, attenuatus, apice triplo angustiore, 

 subtruncato, acuto, carina leviter arcuata, levi sinu in folii marginem 

 excurrens. Amphigastria caulina magna, in plano subrotunda, apice late 

 truncato-rotundata, caule quadruplo latiora. Perianthia ex angusta basi 

 abrupte ovalia, eplicata, rostro magno attenuato. Folia floralia intima 

 caulinis parum longiora, squarrose patula, anguste oblongo, subtriplo 

 longiora quam lata, leviter falcata, apiculata, lobulo parum breviore,. 



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