(Vol. V, 1914). franz STEPHANI. SPECIES HEPATICARUM Hygrolejeunea. 



in folium excurrens, apice quam basis subduplo breviore, truncato, 

 angulo apiculato. Amphigastria caulina gigantea (1,25 mm. lata, 

 0,83 mm. longa) profunde sinuatim inserta grosseque cordata, apice 

 breviter exciso-bidentula, dentibus apiculatis. 

 Hab. Peruvia. Rio Huallaga, 



35. Hygrolejeunea rionegrensis S. Hep. Am. And., p. 240. 

 Dioica major dilute brunnea, in cortice dense depresso-caespitosa. 



Caulis ad 4 cm. longus, sparsim irregulariterque ramosus. Folia caulina 

 conferta, recte patula, concava, in plano subrotunda, asymmetrica, 

 margine supero magis arcuato, apice rotundata \el obtusa, ad medium 

 inserta, basi antica truncato-rotundata, caulem late superantia, 

 marginibus leviter celluloso-crenulatis. Cellulse superae 27 x27 ^ 

 validas, basales 27X36 |x trigonis parvis. Lobulus parvus, folio qua- 

 druplo brevior, ovatus, carina oblique adscendens, leviter arcuata, 

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

 recte truncato, angulo acuto. Amphigastria caulina magna caule triplo 

 latiora, subrotunda, sinuatim inserta, apice ad V» emarginato-biloba, 

 sinu amplo, lobis late triangulatis acutis porrectis. Flores feminei uno 

 latere innovati. Folia floralia ovato elliptica, caulinis aBquilonga, acuta 

 integerrima, lobulus parum bevior, anguste ligulatus, ad medium 

 solutus, obtusus. Amphigastrium florale foliis floralibus aequilongum, 

 rotundum, ad 73 inciso-bilobatum, rima angusta, lobis obtusiusculis. 

 Reliqua desunt. 

 Hab. Brasilia. Rio Negro. 



36. Hygrolejeunea retundifolia Mitt. J. of Bot. 1851, p. 359. 

 Dioica magna robusta flavescens flaccida, in cortice csespitans. Caulis 



ad 6 cm. longus, parurn irregulariterque ramosus, ramis saepe longe 

 simplicibus. Folia caulina imbricata, recte patula, concava apiceque 

 decurva, in plano oblongo-elliptica (1,83 mm. longa, 1,1 mm. lata) 

 apice obtusa, latissima basi inserta, basi antica valde ampliata, 

 semicircularia, caulem superantia integerrima. Cellulte superae 36x36 p 

 basales 36X45jx superae validae, inferae tenerae. Lobulus magnus, 

 anguste longeque saccatus, in folio quasi pendulus, apice recte trun- 

 catus, integerrimus vel dente subapicali armatus, carina arcuata, 

 erecta, amplo sinu in folium excurrens. Amphigastria caulina gigantea 

 (1,67 mm. lata, 1,17 mm. longa) profunde sinuatim inserta, subreni- 

 formia, apice breviter excisula, rima angusta, lobulis conniventibus 

 apiculatis. Perianthia uno latere innovata, obovato-oblonga, obtusa, 

 medio parum constricta, quinque angulata compressa. Folia floralia 

 540 



