(VOL. V, 1913). FRANZSTEPHANI.SPECIESHEPATICARUM Cemtolejeunea. 



inserta, ad mediuiii biloba, sinu seinirecto, iobis anguste triangulatis 

 obtusis. Andrmia in rainis terininalia, ex apice ssepe vegetativa, brac- 

 teis ad 10 jugis. 

 Hab. Guiana. 



80. Geratolejeunea rionegrensis St. n. sp. 



Monoica incdiocris, rufo-briinnea, foliicola. Caulis ad 2 cin. longus, 

 irregulariter pinnulatus, pinnulis longioribus simplicibus vel pauci- 

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

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

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

 inserta, basi antica longissime truncata, apice obtuso paucidenticulato. 

 Cellulse superae 27x27 a, basales 36x4«^^., trigonis nullis, ocelli 

 geminati 45X72 a, interdum insequales. Lohulus 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 V^ 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 mediuin 

 soIutus,acutusvel obtusus, integerrimus. Amphigastrium florale perian- 

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

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

 jugis. 



Hab. Rio Negro (America tropica). 



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

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



irregulariter ramosus, reinote breviterque pinnatus, hic illic fascicula- 

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

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

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

 apice minute dentata. Cellulse superae 48X18 (j., basales 27x36{i,, 

 trigonis nuHis, ocelli 3, seriati, contigui. Lubulus 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 



