(VOL. V, 4915). FRANZSTEPHANl.SPEClESHEPATiCiS.RUM Lejeunea. 



Amphigastrium florale lobulo proximo connatum, oblongo-ellipticum, 

 lobulis parum longius, ad V 3 bifidum, sinu semirecto acuto, laciniis 

 lanceolatis cuspidatis. Androzcia desunt. 



Hab. Brasilia, Cnba. Me.vico, Cmiaiica, Yucatan. 



72. Lejeunea leptalea. S. Hep. Am. And. p. 272. 



Dioica mediocris, pallide flavicans vel virens, in cortice depresso 

 csespitans. Caulis ad 3 cm. longus, remote breviterque pinnatus, ramis 

 longioribus paucis interjectis, similiter pinnatis. Folia caulina conti- 

 gua, subrecte patula, parum concava, in plano ovata, symmetrica 

 (0,67 mm. longa, medio 0,4 mm. lata) ad medium inserta, basi antica 

 truncato-rotundata, apice obtusa, integerrima. Cellulx superse 18x18 y-, 

 basales 27x36 [i, parietibus validis. Lobulus magnus, folio triplo bre- 

 vior, oblongus, duplo longior quam latus, carina oblique adscendens, 

 parum arcuata, levi sinu in folium excurrens, apice quam basis duplo 

 angustiore, oblique exciso, angulo spinula valida armato. Amphigastria 

 caulina majuscula, caule duplo latiora, subrotunda, transverse inserta, 

 ad medium biloba, sinu angusto obtuso, laciniis triangulatis porrectis 

 obtusis. Perianthia uno latere innovata, anguste pyriformia (1 mm. 

 longa, medio 0,58 mm. lata) apice obtusa, rostro valido, quinquepli- 

 cata, plicis posticis angustis, longe decurrentibus, plicaantica breviore. 

 Folia floralia parva, periantbio triplo breviora, obovata, acuta vel 

 obtusa. lobulus lanceolatus parum brevior, ad V 3 vel brevitei- solutus, 

 acutus vel cuspidatus. Amphigastrium florale ligulatum, foliis floralibus 

 longius, triplo longius quam latum, lobulis connatum, apice ad V 4 

 bilidum, rima angusta obtusa, laciniis triangulatis acutis. Amlrcecia 



Hab. Andes quitenses. 



73. Lejeunea leucophaea. S. Hep. Am. And. p. 267. 

 Monoica, major, flavo-virens, in cortice csespitans. Caulis ad 3 cm. 



longus, irregulariter ramosus, ramis brevibus, aliis longissimis spar- 

 sim pinnulatis. Folia caulina contigua, recte patula, parum concava, 

 in plano oblongo-elliptica (1,1 mm. longa, medio 0,7 mm. lata) asym- 

 metrica, ad medium inserta, basi antica truncato-rotundata, apice 

 obtusa, integerrima. Cellulse supera? 18X18 u., basales 18X36 ;x, tri- 

 gonis majusculis, pnrictibns valiili^. Lnbulus minor, folio quintuplo 

 brevior, ovato-triangulatus, carina oblique adscendens, leviter arcuata, 

 amplo sinu in folium excurrens, apice quam basis triplo angustiore, 

 oblique truncato, angulo acuto. Amphigastria caulina gigantea, late 

 ovato-elliptica (0,83 mm. longa, 0,7 mm. lata) basi profunde cordata, 

 744 



