(Vol. V, 4943). franz stephani. species hepaticarum Ceratolejeunea. 

 tripio latiora, subtransverse inserta, subrotunda, integerrima. Perian- 

 thia innovata, pyriformia (1,25 mm. longa, 0,5 mm. lata) compressula, 

 4-5 carinata, superne papillata, quadricornuta. Folia floralia caulinis 

 parum longiora, obovato-lanceolata ; lobulus simillimus, parum angus- 

 tior et brevior. Amphigastrium florale ovale, perianthio subduplo bre- 

 vius, integerrimum, lobulis breviter connatum. Andracia terminalia, 

 bracteis quinquejugis. 

 Hab. Peruvia. 



90. Ceratolejeunea tenuicornuta St. n. sp. 



Monoica mediocris, rufo-brunnea, corticola. Caulis ad 25 mm. lon- 

 gus, dense irregulariterque pinnatus. Folia caulina imbricata, recte 

 patula, concava apiceque decurva, in plano ovato-oblonga (1,47 mm. 

 longa, 0,83 mm. lata) late acuminata acuta, integerrima, asymmetrica, 

 margine postico substricto, antico late arcuato, ad medium accreta, 

 basi antica truncata. Cellulx superse 48X48 jx basales 27X27 [x, 

 ocelli geminati 36X54 rx. Lobulus minor, folio quintuplo brevior, 

 ovatus, subrecte patens, carina leviter arcuata, levi sinu in folium 

 excurrens, apice quam basis parum angustiore, leviter emarginato, 

 angulo acuto. Amphigastria caulina magna, late ovata (0,6 mm. longa, 

 0,5 mm. lata) sinuatim inserta, ad medium inciso-biloba sinu semi- 

 recto, lobis late triangulatis cuspidatis. Perianthia parva, obovata 

 (4,4 mm. longa,0,67 mm. lata) foliis caulinis aequilonga, tenui-cornuta, 

 cornibus 0,33 mm. longis, a;quimagnis, leviter divergentibus, obtusis, 

 teretibus, rostro valido. Folia floralia perianthio breviora (0,9 mm. 

 longa, 0,5 ram. lata) obovato-oblonga, acuta vel obtusa, sub apice 

 denticulata vel integra; lobulus duplo brevior, ad medium solutus, 

 lanceolatus, acutus vel obtusus, integerrimus. Amphigastrium florale 

 giganteum (4 mm. longum et latum, lobulis breviter connatum, ad 

 medium bilobatum, sinu subrecto obtuso, lobis late triangulatis, acu- 

 rainatis acutis. Androecia parva, sessilia, bracteis quadrijugis. 

 Hab. Brasilia orientalis. 



94. Geratolejeunea tahitensis St. n. sp. 



Monoica minor, rufo-brunnea,in cortice csespitans. Caulis ad 15 mm. 

 longus, irregulariter reraoteque pinnatus et bipinnatus. Folia caulina 

 c ontigua, recte patula, concava apiceque decurva, in plano late ovata 

 (1,47 mm. longa, 0,84 mm. lata) asymmetrica, margine postieo stricto, 

 brevi basi inserta, basi antica longe truncata, apice rotundata. Cellulse 

 supene 48 jj., basales 36X45^ trigonis nullis; ocelli basales 3, seriati, 

 36X45 jt. Lobulus parvus, folio sextuplo brevior, ovato-triangulatus, 

 444 



