Strepsilejeunea. FRANZ stephani. SPECIES hepaticarum (Vol. V,i913;, 



pariim longeque ramosus. Folia caulina parum imbricata, subrecte 

 patula, concava apiceque decurva, in plano ovata, subsymmetrica 

 (0,67 mm. longa, 0,5 mm. lata) apice obtusa, rarius acuta, ad medium 

 accreta, basi antica longe truncata. Lobulus majusculus, folio triplo 

 brevior, oblique adscendens, ovato-oblongus, duplo longior quam latus, 

 carina arcuata, levi sinu in folium excurrens, apice quam basis sub- 

 duplo angustiore, oblique truncato, angulo acuto. Cellulx superae 12 {i,, 

 basales 18 {i, trigonis subnullis, antice papuloso-prominulse. Amphi- 

 gastria caulina majuscula, caule triplo latiora, subrotunda, sinuatim 

 inserta, ad medium inciso-biloba, sinu recto, lobis porrectis acutis. 

 Perianthia parva, foliis caulinis parura longiora, ovato - elliptica 

 (0,67 mm. longa, 0,5 mm. lata) plicis posticis late divergentibus 

 longeque decurrentibus , ssepe in unam latam confluentibus, 

 rostro longo, valido. FoUa floralia perianthio aequilonga vel lon- 

 giora, obovata, apice obtusa , vel rotundata, lohulus duplo vel triplo 

 brevior, anguste lanceolatus, breviter solutus, acutus. Amphigas- 

 trium florale perianthio duplo brevius, obovatum, ad ^/s inciso- 

 bilobatum, lobis obtusis, rima angusta. AndroRcia parva, sessilia, brac- 

 teis trijugis. 



Hab. Africa australis. Insula Bourbon. 



5. Strepsilejeunea usambarana St. n. sp. 



Autoica parva, flavo-rufescens, in cortice dense depresso-caespitans. 

 Caulis ad 15 mm. longus, sparsim irregulariterque ramosus, sub flore 

 simpliciter innovatus. Folia caulina conferta, recte patula, valde 

 concava, apice decurva in plano ovato-falcata (0,67 mm. longa, 0,5mm. 

 lata) acuta, brevissima basi inserta, basi antica late rotundata. Cellulae 

 superae 18 [x, basales 18X22 |x, trigonis parvis. Lobulus majusculus, 

 folio triplo brevior, recte patens, ovato-oblongus, duplo longior quam 

 latus, carina valde arcuata, sinu profundo in folium excurrens, apice 

 quam basis duplo angustiore, oblique truncato, angulo apiculato, sub 

 apice constrictus. Amphigastria caulina majuscula, caule subtriplo 

 latiora, transverse inserta, subrotunda, ad medium inciso-biloba, lobis 

 ovatis acutis. Folia floralia caulinis parum majora, falcato-divergentia, 

 valde concava, obovato-oblonga, acuta vel obtusa, lobulo duplo breviore, 

 lanceolato obtuso, ad medium soluto. Amphigastrium florale foliis flor. 

 sequilongum, anguste obcuneatum (0,83 mm. longum, sub apice 0,5 mra. 

 latum) ad V^ inciso-bilobatum, rima angusta, lobis acutis. Andrcecia 

 parva, bracteis trijugis. Reliquadesunt. 



Hab. Africa orient. Usambara. 



277 



