(VOL. V, 4913). franz stephani. species HEPATICARUM Ceratolejeunea. 

 truncato-rotundata, integerrima. Perianthia majuscula, obovato-obcu- 

 neata (1,33 mm. longa, apice 1 mm. lata) inflata, apice late emarginato- 

 biloba, lobis parum prominulis, compressis oblique lateque truncatis ; 

 plicis posticis valde aberrantibus, angustis, longe decurrentibus, apice 

 inflatis, breviter prominentibus, ipso apice rotundatis. Folia floralia 

 caulinis parum majora, valde concava, obovata, apice rotundata ; lobulus 

 parum brevior, admedium solutus, obovato-oblongus, apice rotundatus. 

 Amphigastrium florale lobulis utrinque breviter connatum, spathulatum, 

 apice rotundatum vel leviter retusum, foliis floralibus parum brevius. 

 Androzcia desunt. 



Hab. Brasilia orientalis. 



94. Ceratolejeunea umbonata St. n. sp. 



Monoica, mediocris, brunnea, in cortice subpulvinata. Caulis ad 

 2 cm. longus, regulariter breviterque pinnatus. Folia caulina dense 

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

 ovato-elliptica (1,33 mm. longa, 0,83 mm. lata) subsymmetrica, acuta, 

 integerrima vel sub apice paucidenticulata, brevissima basi inserta, basi 

 antica longe truncata. Cellulse superae 18 basales 27 X 36 |a trigonis 

 parvis ; ocelli nulli. Lobulus parvus, folio quintuplo brevior, ovato- 

 triangulatus, carina oblique adscendens, leviter arcuata, levi sinu in 

 folium excurrens, apice quam basis subtriplo angustiore, emarginato, 

 angulo spinula hamata armato. Amphigastria caulina gigantea, foliis 

 fere aequimagna (0,83 mm. longa, 1 mm. lata) profunde cordata, ad V» 

 inciso-biloba, laciniis lata triangulatis apiculatis, sinu angusto. Perian- 

 thia magna, clavata (1,33 mm. longa, superne 0,75 mm. lata) apice 

 truncata,angulis obtusis, umbonatim prominulis, plicis posticis breviter 

 decurrentibus lateque divergentibus, apice similiter umbonatis. Folia 

 floralia perianthio ajquilonga, obovato-oblonga, apiculata, sub apice 

 sparsim denticulata. Lobulus folio parum brevior, anguste lanceolatus 

 vel linearis, ad x j% solutus, acutus, integerrimus. Amphigastrium florale 

 lobulis aequilongum, obovatum, lobulis breviter connatum, apice ad 74 

 emarginato-bifidum, sinu angusto, lobis late triangulatis acutis, extus 

 paucidentatis. Andmeia sessilia, bracteis trijugis. 



Hab. Africa occidentalis. Kamerun. 



95. Ceratolejeunea usambarensis St. n. sp. 



Monoica, minor, rufo-brunnea, in cortice laxe caespitans. Caulis 

 ad 15 mm. longus, irregulariter breviterque pinnatus et bipinnatus. 

 Folia caulina imbricata, valde concava apiceque decurva, in plano late 

 ovata (1,33 mm. longa, medio 1 mm. lata) asymmetrica, margine postico 

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