Omphalantfms FRANZ STEPilANI, SPECIES HEPATICARUM (VOL.Vl, 4924) 



120. Omphalanthus, Ldbg. et Nees 



Cf. Vol. IV, p. 701 



4. Omphalanthus graiidistipulus St. n. sp. 



Dioica magna gracillima flaccida, in ramis arborum nidulans et 

 pendula, rufescens. Caulis ad 10 cm. longus, tenuis, longeramosus, 

 ramis remotis simplicibus vel reguiariter breviterque pinnulatus. 

 Folia caulina contigua, recte patula, parum concava, in plano 

 obovata, apice late rotundata, longissima basi inserta, basi antica 

 angusta, rotundata, caulem superantia integerrima. Cellulse superae 

 18x27 [x, basales 27x45[x trigonis ubique magnis. Lobulus majus- 

 culus, folio triplo brevior, oblongus, lata basi insertus, carina semi- 

 recta, leviter arcuata, amplo sinu in folium excurrens, apice 

 oblique truncato, angulo acuto, sub apice leviter constrictus. 

 Amphigastria caulina gigantea, foliis parum majora, reniformia 

 (1,33 mm. lata, 0,9 mm. longa) ad medium sinuatim inserta, in- 

 tegerrima. Folia floralia obovato-oblonga (1,4 mrn. longa, medio 

 0,75 mm. lata) apice obtusa ; lobulus ad plicam angustam reductus. 

 Amphigastrium florale foliis floralibus sequilongum obovato- 

 oblongum, obcuneatum, apice leviter retusum. Reliqua desunt. 



Hab. Bolivia (Herzog legit). 



12 



7. Archilejeunea, Spr. — cf voi. iv, p. 703-735 



71. Arehilejeunea involuta St. n. sp. 



Sterilis major flaccida, fusco-brunnea, in rupibus dense depresso 

 caespitans. Caulis ad 4 cm. longus, irregulariter breviterque pinna- 

 tus. Folia caulina conferta, recte patula, valde concava, in plano 

 subrotunda (2.25 mm. longa et lata) asymmetrica, margine supero 

 valde arcuato, infero substricto, apice late rotundata, basi antica 

 longe truncata, brevissima basi inserta. Cellulae. superse 18xl8(x 

 parietibus valididis, trigonis majusculis, basales 18x27[ji trigonis 

 magnis acutis. Lobulus in situ involutus, in plano oblongo-rectangu- 

 latus, carina substricta, stricte in folium excurrens, apice quam basis 

 parum angustiore, recte truncato, angulo acuto. Amphigastria 

 caulina gigantea, reniformia (0,83 mm. longa, 1.25 mm. lata) pro- 



557 



