Taxilejeunea. franz stephani. species hepaticarum (Vol. V, 1913). 



lans. Caulis ad 10 cm. longus, irregulariter breviterque pinnatus, 

 rarius bipinnatus. Folia caulina paruin inibricata, oblique patula, 

 paruni concava, in plano ovato-triangulata (1,5 mm. longa, basi 

 1,33 mm. lata) apice acuta vel apiculata, sub apice sparsini irregula- 

 riterque dentata lata basi inserta, basi antica rotundata. Cellulan superae 

 36X36 {JL trigonis majusculis, basales 36X^2 ji, trigonis parvis. 

 Lobulits parvus (ssepe obsoletus) late ovato-triangulatus, folio sextuplo 

 brevior, carina oblique adscendens, leviter arcuata, levi sinu in folium 

 excurrens, apice quam basis triplo angustiore, recte truncato angulo 

 apiculato. Perianthia clavata (1,4 mni. longa, medio 0,5 mm. lata) sub 

 apice leviter ampliata. cylindrica eplicata vel anguste inflato-plicatula, 

 rostro brevissimo, umbilicatim demerso. Folia floralia perianthio parum 

 breviora, obovato-oblonga, apiculata, sub apice parum valideque den- 

 tata; lobulus parvus, linearis, recte truncatus, haud solutus. Amphi- 

 gastrium flovdile foliis floralibus aequilongum, obovato-obconicum, foliis 

 breviter exciso-bidentatum, inferne integerrimum superne regulariter 

 remoteque dentatum. Androecia parva sessilia, bracteis 2-3 jugis. 

 Hab. America tropica. 



51. Taxilejeunea Suringarii St. n. sp. 



Dioica minor, pallide virens foliicala. Caulis ad 2cm. longus, parum 

 longeque ramosus. Folia caulina parum imbricata, oblique patula, 

 parum concava, in plano late triangulata (1,1 mm. longa, basi 1 mm. 

 lata) subsymmetrica, acuta, sub apice bidentata, ceterum integerrima, 

 ad medium inserta, basi antica late rotundata caulem superantia. 

 Cellulse superse 36 X 36 {x, basales 36 X 54 ji., trigonis nullis. Lobulus 

 parvus (ssepe obsoletus) ovato-triangulatus, folio septuplo brevior, 

 carina oblique adscendens, arcuata, amplo sinu in folium excurrens, 

 apice quam basis triplo angustiore, oblique truncato, angulo apiculato. 

 Amphigastria caulina gigantea, folio subaequimagna, reniformia (1 mm. 

 lata, 0,75 mm. longa) profunde sinuatim inserta, cordatim rotundata, 

 apice ad V* inciso-biloba, rima angusta, lobis late triangulatis apicu- 

 latis conniventibus. Androecia sessilia, parva, bracteis 3-4 jugis. Reliqua 

 desunt. 



Hab. Surinam. 



52. Taxilejeunea ? tenera (Sw.) St. 



Syn. : Jungermannia tenera Sw. Prodr. Fl. Ind. occ, p. 143. 



Lejeunea tenera Sw. Syn. Hep., p. 406. 

 Sterilis, maxima, pallide virens terricola. Caulis ad 8 cm. longus, 

 inferne regulariter breviterque pinnatus, superne simplex, flaccidus 



479 



