(VOL. V, 1916). franz stephani. species hepaticarum Diplasiolejeun. 



2. Diplasiolejeunea cavifolia St. Botan. Jahrb. Vol. VIII. 

 Monoica, major, fusco-brunnea vel subatra, corticola. Caulis ad 2 cm. 



longus, irregulariter pinnulatus. Folia caulina conferta, recte patula, 

 partim concava, in plano late ovata, subsymmetrica (1,75 mm. longa, 

 mediol,33mm. lata) apice late rotundata, breviseima basi inserta, 

 basi antica truncato-rotundata, integerrima. Cellulse superse 14x14 ^ 

 basales 18x36 51, parietibus validis. Lobulus magnus, folio duplo bre- 

 vior, ovato-ellipticus, duplo longior quam latus, carina valde arcuata, 

 levi sinu in folium excurrens, apice quam basis triplo latiore, oblique 

 truncato, bidentato, dente angulari acuto breviusculo, dente mediano 

 multo validiore apice malleolato. Amphigastria caulina magna, caule 

 multo latiora, bifida, laciniis lanceolatis, late divergentibus, sinu am- 

 plissimo acuto, basi late obcuneata, transverse inserta. Perianlhia 11110 

 latere innovata, late pyriformia (1,25 mm. longa, superne 0,83 mm. 

 lata) apice late rotundata, rostro parvo, plicis posticis latiusculis, longe 

 divergenti-decurrentibus, plica antica minus producta. Folia floralia 

 parva, perianthio triplo breviora, subligulata, obtusa vel acuta, lobulus 

 sequilongus, lanceolatus, ad l jz solutus, acutus, sub apice denticulatus. 

 Amphigastpium florale magnum, foliis floralibus parum longius, ovato- 

 ellipticum, ad medium inciso-bifidum, rima angusta, laciniis lanceola- 

 tis acutis. Andrcecia sessilia, bracteis 3-4 jugis. 

 Hab. Insula San Thome 1 (Africa occid.). 



3. Diplasiolejeunea cornuta. St. n. sp. 



Monoica, dilute rufescens, exigua, foliicola. Caulis ad 5 mm. longus, 

 sparsim longeque ramosus. Folia caulina parum imbricata, recte patula, 

 concava, in plano ovato-elliptica, (1,33 mm. longa, medio 0,83 mm. 

 lata) subsymmetrica, apice late rotundata, brevissima basi inserta, basi 

 antica longetruncato-rotundata, marginibus repandis vel erosulis. Cel- 

 lulae superse 18X18 basales 27x36 (i, trigonis nullis. Lobulus 

 magnus, in situ fusiformis (margine supero involuto) in plano oblongus, 

 duplo longior quam latus, carina leviter arcuata, papulosa, levi sinu in 

 folium excurrens, apice quam basis duplo latiore, truncato, bidentato, 

 dente angulari minuto, dente mediano elongato multo majore. Amphi- 

 gastria caulina gracillima, anguste bisetula, disco basali integro brevis- 

 simo, setulis leviter divergentibus, acutis, caulis diametro longioribus. 

 Perianthia uno vel utroque latere innovata, obovata, quinqueplicata, 

 plicis posticis longe angusteque decurrentibus, inferne nudis, apice 

 late recteque truncatis, irregulariter obtuseque dentatis. Folia floralia 

 perianthio parum breviora, anguste ligulata, apice rotundata, erosa, 

 918 



