(VoL. V,1^4). FHAisz STEiMiAM. SPECILS HEPATiCAHL.M lieclolejeunea . 



Rectolejeunea Evans 



FMantae parvte, siepe exiguae, flaccidae, corticolse vel foliicolae, vulgo 

 deiise depresso-caespitantes. Caulis multiramosus, ramis inaequalibus 

 iniequaliter distributis. Folia cauiina iinbricata, ssepe contigua, in 

 ramis remota, vulgo recte patula, parum concava, ovata vel ovato- 

 ol)longa, rarius subrotunda, brevi basi inserta et lacile decidua, basi 

 antica truncata, caulem haud superantia, marginibus integerrimis, 

 interdum celluloso-crenulatis. Cellnlse foliorum, majuscula?, vulgo 

 regulariter hexagonse, parietibus validis subtrabeculatis, trigonis nullis, 

 basales longiores, ocelli rarissimi. Lobulus folii valde variabilis, ovatus 

 vel oblongus, rarius rectangulatus, apice truncatus vel excisus, angulo 

 obtuso vel acuto, rarius spina armato. Amphigastria caulina majuscula 

 vei magna, rarius parva, transverse vel sinuatim inserta, vulgo sub- 

 rotunda, apice bifida. Inflorescentia monoica vel dioica, rarius autoica. 

 Perianthia uno vel utroque latere innovata vel terminalia, pyriformia, 

 levia, quinqueplicata, plicis angustis longe decurrentibus, plica anlica 

 s;epe obsoleta, plicis posticis interdum in unam latam confluentibus. 

 Folia floralia magna, obovato-oblonga, integerrima, rarius celluloso- 

 crenulata, lobulus magnus, plus minus profunde solutus, acutus vel 

 oljtusus. Amphigasfrium florale semper liberum, magnum, plus niiniis 

 profunde bifidum. Androecia sessilia, rarius in ramulis terminalia, 

 interdum ex apice vegetativa, bracteis 2-8 jugis. 



I. Africa 



1. l\ecli)lejeuiiea Sanla! Mariaj St. n. sp. Madagascar. 



II. America tropica 



2. Reclolejeunea apiatiyna St. n. sp. Brasilia. 



3. Hectolejeunea assurgens (S.) St. Rio Negro. 



4. 1'iectolejeunea Berteroana (G.) Evans India occ. 

 ^. RecloJejeunea Bornnuilleri St. n. sp. Brasilia. 

 6. Rectolejeunea Brittoni.p Evans Bahania Insula'. 



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