longa, medio 0,4 mm. lata, breviter simiatim inserta, apice ad 

 Vs inciso-biloba, rima angusta. lobis acntis. Andrmiu numerosa, 



Hab. Guiana gaUica. 



11. Euosmolejeunea Beyrichii (Ldbg) St. 



S\n. : Lejeunea Beyrichii Ldbg. Syn. Hep. p. 371. 



Hygrolejeunea petropolitami St. Hedwigia 1896, p. 104. 



Hioica, spectabilis, flavo-rufescens, flaccida, in cortice laxe eaespi- 

 tans; Caulis ad 7 cm. longus irre<mlaritcr reinoteque ramosus, ramis 

 longissimis interjectis simplicibus, aliis bre\ioribus dense pinnulatis. 

 Folia caulina imbricata, recte patula, concava apiceque decurva, in 

 plano ovata, (1,4 mm. longa, medio 1 mm. lata) subsymmetrica, apice 

 rotundata, ad medium accreta, basi antica late rotundata. Cellulse 

 supera? 18X27 ji, basales 27X36 ^ trigonis maximis. Lobulus parvus 

 (sa?pe obsoletus) folio quintuplo brevior, late ovatus, carina oblique 

 adscendens, leviter arcuata, levi sinu in folium excurrens, apice quam 

 basis duplo angustiore, oblique trunrato. angulo apiculato. Amphigas- 

 tria caulina maxima, subrotunda (1 mm. lata, 0,67 mm. longa) pro- 

 funde sinuatim inserta, alis basalibus ex parte liberis, cordatim rotun- 

 datis, apice breviter incisa, rima angusta, lobis apiculatis, hamatim 

 conniventibus; Perianthia uno latere innovata, obovata (1,5 mm. longa, 

 0,83 mm. lata) apice rotundata, rostro lato brevissimo, plicis posticis 

 angustis, irregulariter angulatis. longe decurrentibus. Folia floralia 

 perianthio sequilonga vel parum breviora, anguste lanceolata acuta 

 integerrima, Lobulus folio duplo vel triplo brevior, anguste linearis, 

 vel oblongus, parum solutus, acutus vel obtusus. Amphigaxtrium tlorale 

 perianthio duplo brevius, late obovato-obconicum, liberum, fere ad 

 meriium inciso bilobatum, rima angusta, lobis late triangulatis apicu- 

 latis. Andmeia sessilia, bracteis 5 jugis. 



Hab. America tropica Brasilia, Venezuela, Costarica. 

 1-2. Euosmolejeunea clausa (Nees et Mont.) Evans. Bryolo- 

 gist. 1908, p. 69. 



583 



