Ikvlolrjcuiiea. fhanz sti-:i'IIAM. si-kciks iiki-aticarum (Vok. V, 1914). 



Celluhv superse 25 [j., basales 27X30^, Irigonis iiiiiiiis (lislinclis. 

 Lobulus inflatus, ovato trianonlatus, folio quintnplo biovior, carina 

 oblique adscendens, stricte in folium exciirrens, apice quam basis 

 triplo angustiore, truncato, ant^ulo obtuso. AmpkUjustria caiilina magna, 

 caule quintuplo latiora, subrotunda vel latiora ([uam longa, transverse 

 inserta, ad medium inciso-biloba, sinu recto, lobis acutis. Cerianthia 

 uno latere innovata, pyriformia, duplo longiora quam lata, obtuse 

 quinqueplicata; plicis posticis longe decurrentibus, rostro brevi. Foliu 

 Uoralia perianthio parum breviora, late divergentia, obovato-oblonga, 

 apice rotundata, lobulus magnus, folio parum brevior, angusto lan- 

 ceolatus, profunde solutus, acutus vel obtusus. Amphigasirium 

 florale lobulis sequilongum, obovatum, apice breviter inciso-bideii- 

 tatum, dentibus acutis. Andracia terminalia vel sessilia, bracteis 

 2-6 jugis. 



Hab. Bahama. Insul?e. 



7. Rectolejeunea concava (L. et G.) St. 



Syn. Lejeunea concava L. et G. Syn. Hep., p. 459. 



Dioica mediocris flavescens, flaccida, corticola. Caulis ad 25 mm. 

 longus, dense breviterque pinnulatus, paucis ramis longioribus 

 interjectis simplicibus. Folia caulina imbricata, recte patula, parum 

 concava, in plano late ovata (0,83 mm. longa, medio 0,67 mm. lata) 

 apice rotundata, brevissima basi inserta, basi antica truncata. Cellulse 

 superse iSXtSa, basaies 18X36ix, trigonis magnis in parietibus 

 validis, marginales crenulatim prominulse. Z/0^?</(/.s' magnus, folio duplo 

 brevior, oblique adscendens, in situ anguste fusiformis, in plano 

 ovato-oblongus, carina arcuata, levi sinu in folium excurrens, apice 

 quam basis subduplo angustiore, oblique emarginato, angulo obtuso. 

 Amphigastria caulina parva, caule duplo latiora, transverse inserta, 

 subrotunda, ad ^/s bifida, sinu semi recto acuto, lobis angustis apice 

 rotundatis. Perianthia uno latere innovata, siibclavata (1,17 mm. 

 longa, medio 0,55 inm. lata) adulta obovato-oblonga, apice rotun- 

 data, rostro brevi valido conico, plicis ionge decurrentibus angus- 

 tis. Folia floralia perianthio duplo breviora, obovata, apice rotun- 

 data, lobulus duplo vel tertia brevior, i^e linearis, breviter solutus, 

 obtusus. Amphigastrium florale perianthio triplo brevius, ovato- 

 ellipticum, ad V^ inciso-bifidura, rima angusta, lobis obtusis. 

 Androscia sessilia, parva bracteis 2-3 jugis, ex apice ScTpe vege- 

 tativa. 



Hab. Mexico. Cosiarica. 



683 



