Ceratolejeunea. FRANZ STEPHANI. SPEGIES HEPATIGARUM (VOL. V, 1913). 



caulina majuscula, ovato triangulata, caule triplo latiora, transverse 

 inserta ad medium vel magis profunde biloba, rima angusta, lobis 

 anguste triangulatis porrectis acutis. Perianthia in ramulis terminalia, 

 obovata, quadriplicata, plicis late triangulatis compressis seraierectis 

 acutis, posticis parum angustioribus, rostro parvo. Folia floralia cauli- 

 nis aequimagna, ovato-elliptica, acuminata acuta, superne dentata vel 

 solem angulata ; lobulus parum brevior, profunde solutus, lanceolatus 

 acutus, integerrimus. Amphigastrium florale lobulis utrinque breviter 

 connatum, subrotundum ultra medium inciso-bifidum, laciniis late lan- 

 ceolatis acuminatis conniventibus. Androecia sessilia, bracteis ad 

 sexjugis. 

 Hab. Cuba. 



82. Geratolejeunea rufo-pellucida S. Hep. Am. And. p. 207. 

 Monoica major, dilute rufo-brunnea, foliicola vel corticola. Caulis 



ad 4 cm. longus, irregulariter pinnatus et bipinnatus. Folia caulina 

 parum imbricata, recte patula, parum concava, in planoovata (0,83 mm. 

 longa, 0,67 mm. lata) asymmetrica, margine postico stricto, antico late 

 rotundato, brevi basi inserta, basi antica longe truncata, apice apicu- 

 lata, sub apice irregulariter dentata. Cellulse supera 27 jt, basales 

 27X36 ;x, trigonis parvis ; ocelli nulli. Lobulus majusculus, foliotriplo 

 brevior, oblique adscendens, oblongus, duplo longior quam latus, carina 

 leviter arcuata, recto sinu in folium excurrens, apice quam basis tripio 

 angustiore, oblique truncato, angulo spina parva armato, sub apice 

 constrictus. Amphigastria caulina magno, caule quintuplo latiora, optime 

 circularia, transverse inserta, apice ad V* inciso-biloba, sinu angusto, 

 lobis acutis vel apiculatis. Perianthia uno latere innovata, magna, 

 obovato-oblonga (1,67 mm. longa) quadricornuta, cornibus 0,83 mm. 

 longis, e lata basi abrupte attenuatis, angustis obtusis, latissime diver- 

 gentibus, rostro magno valido. Folia floralia caulinis aequimagna, 

 obovata, acuta, superne valide regulariterque dentata, lobulus obovatus 

 vel subquadratus, folio duplo brevior, superne paucispinulosus. 

 Amphigastrium florale foliis floralibus parum brevius, late ovatum, ad 

 medium inciso-bilobatum, rima angusta nuda, lobis late triangulatis 

 acuminatis, extus denticulatis. Androecia sessilia, bracteis 3-4 jugis. 

 Hab. America tropica. Rio Negro. 



83. Ceratolejeunea scaberula (S.) St. 



Syn. : Prionolejeunea scaberula S. Hep. Am. And., p. 159. 

 Autoica parva, flavo-rufescens, in cortice dense depresso caespitans. 

 Caulis ad 15 mm. longus, irregulariter pinnulatus. Folia caulina imbri- 

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