(Vol.V,19U). franz stepham. species hepaticarum Rectolejeunea. 



34. Rectolejeunea nankaiensis St. n. sp. 



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

 8 ram. longus, irregulariter pimiatus. Folia caulina imbricata, oblique 

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

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

 basi inserta, basi antica truncato-rotundata, integerrima. Cellulse 

 superae 27X27 basales 18X36 |i, parietibus tenuibus, trigonis 

 nullis. Lobulm magnus, folio triplo brevior, in silu ovatus, oblique 

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

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

 angulo apiculato. Amphigastria caulina majuscula, caule duplo latiora, 

 transverse inserta, subrotunda, ad */« emarginato-biloba, sinu amplo, 

 lobis obtusis. Perianthia in ramulis terminalia, parva, pyriformia 

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

 plicis posticis latis, longe decurrentibus. Folia floralia intima imequalia, 

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

 t u nda, lobulm duplo brevior maximus, ovatus, truncatus, integerrimus 

 vel multo minor, obovatus. Amphigastrium florale intimum perianthio 

 triplo brevius, late ovatum, Iiberum, ad V 3 inciso-bifidum, rima 

 angusta, lobis anguste triangulatis cuspidatis conniventibus. Andrmcia 

 inediana, niagna, in ramo repetita. 



Hab. Japonia. Insula Nankai. 



35. Rectolejeunea Nymanii St. n. sp. 



Dioica iniimr. Ilavo-rufescens, in cortice dense depresso-csespitans. 

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

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

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

 bre\issima ba*a iuserta, basi autiea truneata vel sinuatim truncata, 

 marginibus celluloso-crenulatis. Cellulse supera? 18x18 (x basales 

 27x36 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. Amphigastriu caulina magna, caule 

 ipiadruplo latiora, subrotunda, leviter sinuatim inserta, ad medium 

 inciso-biloba, sinu recto, lobis late triangulatis acutis. Flores feininei 

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

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

 latus, plus minus profunde solutus ancutus. Amphigastrium florale 

 698 



