(VoL. V,1913). FRANZSTEPHANl. SPECIES HEPATICARUM Trachylejeunea. 



rima angusta crenata, lobis late triangulatis, acutis, crenatis. Andrcecia 

 sessilia, bracteis 5 jugis. 

 Hab. Peruviu. 



15. Trachylejeunea pellucidissima S. Hep. Aiii. Aiid., p. 184. 

 Autoica, parva, fusco-brunnea, corticola. Cuulis ad 15 min. longus, 



irregulariter multiraniosus. Foliu cuulinu contigua, recte patula, pai-ura 

 concava, in plano ovata (0,9 mm. longa, 0,67 ram. latai asymmetrica, 

 margine postico stricto, antico valde arcuato, apice obtusa, brevissima 

 basi inserta, basi antica longe truncata, inferne integerrima, superne 

 minute erosa. Cellulse superae 18 jj,, basales 36X63 jj. trigonis nullis. 

 Lobulus raagniis, folio triplo brevior, recte patens, oblongus, duplo 

 longior quam latus, carina leviter arcuata, levi sinu in folium excurrens, 

 apice quam basis subduplo angustiore, truncato, angulo, apiculato. 

 Amphigastria cuulina exigua, cauli sequilata, transverse inserta, vix 

 longiora quam lata, ad medium inciso-biloba, sinu recto acuto, lobis 

 triangulatis acutis porrectis. Perianthia raagna, subclavata (1,33 mm. 

 longa, superne 0,75 mm, lata) apice late rotundata minuteque serru- 

 lata, inferne nuda longeque obcuneata, piicis posticis iate divergentibus, 

 sirailiter arraatis ; rostro parvo. Folia floruliu perianthio parum bre- 

 viora (1 mra. longa) obovato-oblonga, obtusa, superne crenulata ; 

 lobulo duplo breviore, anguste lanceolato, ad V^ soluto, acuminato 

 acuto iiitegerrimo. Amphigastrium florale lobulis aequilongum, oblongo- 

 ellipticum, duplo longius quam latum, ad V^ inciso-bilobatum, rima 

 angusta, lobis late triangulatis obtusis. Andrceciu sessilia, bracteis qua- 

 drijugis, valde nunierosa. 



Hab. America tropica. Rio Negro. 



16. Trachylejeunea polystachya S. Hep. Am. And., p. 250. 

 Monoica, raediocris, brunnea, in cortice dense depresso-c£espitans, 



lateque expansa. Caulis ad 25 mm. longus, parum breviterque pinnu- 

 latus, ramis fertilibus, masculis et femineis, dense consecuti\is. Folia 

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

 plano late ovata (1,17 mra. longa, 0,83 mm. lata; leviter falcata, apice 

 late rotundata, brevi basi inserta, basi antica truncato-rotundata. 

 Cellulse superte 18 [x, basales 18x36 jx, trigonis nullis. Lohulus magnus, 

 foiio subduplo brevior, oblique adsceudens, oblongus, duplo longior 

 quam latus, carina substricta, levi sinu in foliura excurrens, apice 

 quara basis vix angustiore, recte truncato, angulo obtuso. Amphigas- 

 tria caulina majuscula, caule triplo latiora, late obovata, transverse 

 inserta, basi obcuneata, apice vix ad raedium inciso-biloba, rima 



309 



