(VOL. V, 1914). FRANZ STEPHANI. SPECIES HEPATICARUM Pycnolejeuncd. 



inciso-biloba, sinu semirecto, lobis late triangulatis acutis. Andnevia 

 parva, sessilia, bracteis paucijugis, ex apice vegetativa. Reliqua desunt. 

 Hab. Madagascar. Insula Mauritiiis. 



II. America tropica 



a) Breviloba 



5. Pycnolejeunea decurviloba St. Hedwigia 1896, p. 125. 

 Dioica major, robusta rufescens vel rufo-brunnea, in cortice laxe 



intricata. Caulis ad 4 cm. longus, validus, irregulariter reinoleque 

 ramosus; Folia caulina conferta, recte patula, valde concava apiceque 

 anguste decurva, in plano ovato-triangulata (1,33 mm. longa, basi 

 1,17 mm. lata) asymmetrica, margine supero late rotundato, infero 

 stricto, apice late rotundata, ad medium inserta, basi antica longe 

 tnincata. Cellulse superae 27 X27 |x, basales 27X36 |A, trigonis magnis, 

 marginales papuloso-prominulae. Lobulus parvus, folio quintuplo bre- 

 vior, decurvus, carina sinuata, margine supero et apice ex parte occulti, 

 in plano recte patens, ovatus, carina stricta, stricte in folium excur- 

 rens, apice quam basis triplo angustiore, recte truncato, angulo obtuso. 

 Amphigastria caulina gigantea, plus duplo latiora quam longa (1 ,17 mm. 

 lata, 0,67 mm. longa) sinuatim inserta, apice breviter inciso-bidentula, 

 dentibus vix prominulis. Perianthia uno latere innovata, e basi longe 

 cylindrica obovato-obconica (2,25 mm. longa, sub apice 1,25 mm. 

 lata) apice truncata, rostro subnullo, plicis posticis angustis breviter 

 divergenti-decurrentibus. Folia floralia perianthio parum breviora 

 obovato-obconica, apice late rotundata; lobulus duplo brevior, anguste 

 oblongns, acutus vel obtusus, profunde solutus. Amphigastrium florale 

 folisfloralibusapquilonguin, subroluiiiluiu, api.v ad 1 uiiciso-bilobatum, 

 rima angusta, lobis obtusis. Andrcecia sessilia, inlerdum ex apice vege- 

 tativa, bracteis 5-6 jugis. 

 Hab. Ecuador, Trinidad. 



6. Pycnolejeunea densistipula (Lebm.) St. 

 Syn. : Lejeunea densistipula Lehm. Pug. VII 1838, p. 20. 



Lejeunea cryptantha De Not. in Lehm. Pug. X. 1841, p. 14. 

 Sterilis, magna, robusta, valida, rufo-brunnea . dense depresso-nespi- 

 tosa, corticola. C««/wad7 cm.longus,fasciculatim multiramosus, bipin- 

 natus; Folia caulina confertissima, recte patula, maxime concava, apice 

 late decurva, in plano ovata, symmetrica 1.17 mm. longa, 0,83 mm. 

 602 



