(VOL. V, 1943). franz stephani. spegies hepatigarum Ceratolejeunea. 

 inserta, ad raedium biloba, sinu semirecto, lobis anguste triangulatis 

 obtusis. Andrcecia in ramis terminalia, ex apice saepe vegetativa, brac- 

 teis ad 10jugis. 

 Hab. Guiana. 



80. Ceratolejeunea rionegrensis St. n. sp. 



Monoica mediocris, rufo-brunnea, foliicola. Caulu ad '1 cm. longus, 

 irregulariter pinnulatus, pinnulis longioribus simplicibus vel pauci- 

 pinnatis. Folia caulina parum imbricata, recte patula, late ovato-trian- 

 gulata, subplano-disticha (1,1 mm. longa, basi 4 mm. lata) asymme- 

 trica, margine postico stricto, antico valde arcuato, brevissima basi 

 inserta, basi antica longissime truncata, apice obtuso paucidenticulato. 

 Cellulse superse 27X27 ij., basales 36x45;j., trigonis nullis, ocelli 

 geminati 45X72 >j., interdum insequales. Lobulus subparvus, folio 

 quadruplo brevior, subovatus, carina leviter arcuata, levi sinu in folium 

 excurrens, apice quam basis subduplo breviore, recte truncato, angulo 

 acuto. Amphigastria caulina majuscula, caule quintuplo latiora, sub- 

 rotunda, leviter sinuatim inserta, apice ad Vs inciso-biloba, sinu semi- 

 recto, lobis porrectis late triangulatis acutis. Perianthia parva, obovata, 

 quadricornuta, cornibus lateralibus, late divergentibus, e lata basi 

 attenuatis, obtusis, plicis posticis longe decurrentibus, apice brevius 

 cornutis, cornibus anguste triangulatis obtusis, minus divergentibus. 

 Folia floralia perianthio parum breviora, obovata vel obovato-oblonga, 

 apiculata, integerrima ; lobulus oblongus, parum brevior, ad medium 

 solutus,acutusvel obtusus, integerrimus. Amphigastrium florale perian- 

 thio duplo brevius, obobatum, apice ad V* inciso-bilobatum, rima 

 angusta, lobis acutis integerrimis. Andrcecia sessilia, bracteis quadri- 

 jugis. 



Hab. Rio Negro (America tropica). 



81. Geratolejeunea rubiginosa St. Hedwigia 1895. p. 237. 



Monoica parva, dilute brunnea, foliicola. Caulis ad 35 mm. longus, 

 irregulariter ramosus, remote breviterque pinnatus, hic illic fascicula- 

 tim ramosus. Folia caulina conferta, recte patula, ovata (0,83 mm. 

 longa, 0,58 mm. lata) asymmetrica, margine postico stricto, antico late 

 rotundato, brevi basi inserta, basi antica truncata, apice acuta, sub 

 apice minute dentata. Cellulee superae 48X18 jt, basales 27X36jt, 

 trigonis nullis, ocelli 3, seriati, contigui. Lobulus majusculus, oblique 

 adscendens, folio quadruplo brevior, in situ oblongus, duplo longior 

 quam latus, carina arcuata, levi sinu in folium excurrens, apice quam 

 basis parum angustiore, oblique truncato, angulo acuto. Amphigastria 

 438 



