(VOL. V, 1914). FRANZ STEPHANI. SPECIES HEPATICARUM /iectolejeunea. 



34. Rectolejeunea nankaiensis St. n. sp. 



Monoica, pusilla, pallide virens, in cortice caespitans. Cttulis ad 

 8 mm. longus, iiTeguiariter pinnatus. Fotia caulina imbricata, oblique 

 patula, parum concava, in plano ovata (0,67 mm. longa, medio 0,5 ram. 

 lata) asymmetrica, margine infero minus arcuato, apice obtusa ; brevi 

 basi inserta, basi antica truncato-rotundata, integerrima. Cellula; 

 superse 27X27 [x, basales 18X30 |j., parietibus tenuibus, trigonis 

 nullis. Lobntus magnus, folio triplo brevior, iii situ ovatus, oblique 

 adscendens, carina leviter arcuata, levi sinu in folium excurrens, in 

 plano subquadratus, apice quam basis vix angustiore, recte truncato, 

 angulo apiculato. Amphigastria caulina majuscula, caule duplo latiora, 

 transverse inserta, subrotunda, ad ^/s emarginato-biloba, sinu amplo, 

 lobis obtusis. Perianthia in raniulis terminalia, parva, pyriformia 

 (0,83 mni. longa, medio 0,5 mm. lata) apice rotundata, rostro valido, 

 plicis posticis Jatis, longe decurrentibus. Folia floralia intima inaequalia, 

 perianthio sequilonga vel duplo breviora, obovato-oblonga vel subro- 

 tunda, lobutus duplo brevior maximus, ovatus, truncatus, integerrimus 

 vel multo minor, obovatus. Amphigastrium florale intimum perianthio 

 triplo brevius, late ovatum, liberum, ad V^ inciso-bifldum, rima 

 angusta, lobis anguste triangulatis cuspidatis conniventibus. Andrcecia 

 mediana, magna, in ramo repetita. 



Hab. Japonia. Insula Nankai. 



35. Rectolejeunea Nymanii St. n. sp. 



Dioica niinor, llavo-rufescens, in cortice dense depresso-caespitans. 

 Caulis ad 10 mm. longus, irregulariter multiramosus. Folia caulina 

 imbricata, recte patula, valde concava apiceque arcte decurva, in plano 

 ovata (0,91 inra. longa, medio 0,67 mm. lata) symraetrica, obtusa, 

 brevissima basi inserta, basi antica truncata vel sinuatim truncata. 

 marginibus celluloso-crenulatis. Cellulie superae 18x18 |j, basales 

 27X36 [j. trigonis parvis. Lobulus majusculus, folio triplo brevior, in 

 situ oblongus, sub apice constrictus, apice ipso oblique truncato, 

 angulo occulto, in plano late ovatus, carina arcuata, amplo sinu in 

 folium excurrens, apice quam basis duplo angustiore, profunde emar- 

 ginato, angulo spina longa armato. Amphigastria caulina magna, caule 

 quadruplo latiora, subrotunda, leviter sinuatim inserta, ad medium 

 inciso-biloba, sinu recto, lobis late triangulatis acutis. Ftores feminei 

 unolatere innovali. Folia floralia caulinis sequilonga, obovato-oblonga, 

 apice rotundata, lobulus, duplo velo vel triplo brevior, anguste lanceo- 

 latus, plus minus profunde solutus ancutus. Amphigastrium florale 



698 



