Rectolejeunea. franz stepham. species hepaticarum (Vol. V, 1944). 



maximum, foliis floralibus subaequilongum, obovatum, ad V 3 inciso- 

 bilobatum, sinu angusto, lobis late triangulalis acutis. Andmcia 



Hab. Nova-Caledonia. 



36. Rectolejeunea riparia (Mitt.) St. 



Syn. : Lejeunea riparia Mitt. Proc. Linn. Soc, 1861, p. 1 13. 



Monoica mediocris, regidula flavo-virens, corticola. Caulis a<l 2 rm. 

 longus, irregulariter multiramosus. Folia caulina conferta, oblique 

 patula, concava, in plano ovato-elliptica (1,17 mm. longa, medio 

 0,83 mm. lata, asymmetrica, margine supero late rotundato, 

 infero substricto, apice rotundata, brevi basi inserta, basi 

 antica truncato-cotundata. Cellulse supera 18 ;x, basales 18X36^, 

 parietibus tennibus, trigonis sulmiillis. Lobulus parvus, folio septuplo 

 brevior, in situ anguste rectangulatus, in plano ovato-conicus, carina 

 oblique adscendens, substricta, stricte in foliuin excurrens, apice quam 

 basis subduplo angustiore, oblique truncato, angulo acuto. Amphi- 

 gastria caulina majuscula, caule triplo latiora, subrotunda, transverse 

 inserta, ad medium biloba, sinu obtuso semirecto, lobis anguste trian- 

 gulatis acutis, porrectis vel conniventibus. Andrcecia sessilia, bracteis 

 paucijugis. 



Hab. Ceylon. 



37. Rectolejeunea samoana St. n. sp. 



Dioica, mediocris flavescens, aliis hepaticis consociata. Caulis ad 

 3 cm. longus, rigidulus, parum longeque ramosus. Folia caulina 

 contigua, recte patula, valde concava, in plano ovato-rotundata 

 (0,75 mm. longa, medio 0,67 mm. lata), apice late rotundata, brevi 

 basi inserta, basi antica truncata. s\ mmetrica. mnrginibus celluloso- 

 crenulatis. Cellute supera? 18X18 |i basales 27X36 ji trigonis nullis. 

 Lobulus magnus, folio triplo brevior, in situ ovato-oblongus, carina 

 nhliquc adscemleiis \ahle airuata. irclosinu in l'i»liiiin e\currens, apice 

 quam basis triplo angustiore, ex parte involuto, sub apice maxime 

 constrictus, in plano valde aberrans, ovato-triangulatus, apice quam 

 basis duplo angustiore, oblique truncato, angulo apiculato. Amphi- 

 gastria caulina magna, caule triplo latiora, leviter sinuatim inserta, 

 subrotunda, ad 2 /3 inciso-biloba, sinu recto, lobis acutis. Perianthia 

 uno latere innovata, magna (1,33 mm. longa, superne 0,75 ram. lata) 

 longe angusteque pyriformia, apice truncato-rotundata, rostro hrevi, 

 plicis posticis angustis, longe divergenti-decurrentibus. Folia lloralia 

 perianthio duplo breviora, obovato-oblonga, obtusa, lobulus tertio 

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