(VOL. V, 4912). FRANZ STEPHANI. SPECIES HEPATICARUM Ptychocoleus. 



angustis longe decurrentibus. Folia floralia intima perianthio sub- 

 aequilonga, oblonga, apice rotundata, lobulo sequilongo, parum soluto 

 et parum angustiore, apice rotundato. Amphigastrium florale intimum 

 perianthio sequilongum, optime ellipticum, inflorescentiam omnino 

 obtegens. Androzcia in ramis terminalia, bracteis ad 10 jugis, ex apice 

 vegetativa. 

 Hab. Sumatra. 



53. Ptychocoleus laxus St. n. sp. 



Autoica, major, flavo-virens, corticola. Caulis ad 5 cm. longus, irre- 

 gulariter pinnulatus, hic illic ramo longiore interjecto, similiter pinnato. 

 Folia caulina contigua, oblique patula, subplano-disticha, oblongo- 

 elliptica (1,33 mm. longa, 0,93 mm. lata) apice obtusa, ad medium 

 accreta, basi antica truncata. Cellula> superae 27 basales 27X45 ji, 

 trigonis parvis subnodulosis, in medio et angulis parietum. Lobulus 

 magnus, fusiformis, subcylindricus, quadruplo longior quam latus, 

 carina substricta, ore oblique truncato, angulo obtuso. Amphigastria 

 caulina magna, caule quintuplo latiora, e basi obcuneata subrotunda. 

 Folia floralia caulinis parum breviora, lanceolata, acuta, lobulo parvo, 

 lineari, oblique truncato, angulo acuto. Amphigastrium florale foliis 

 floralibus parum brevius, ovato-ellipticum, superne paucidentatum, 

 dentibus validis brevibus, apice breviter emarginato-bifidum, rima 

 angusta, lobis triangulatis acutis. Andracia in caule terminalia, bracteis 

 quadrijugis. 



Hab. Nova Caledonia. 



54. Ptychocoleus longispicus St. n. sp. 



Dioica major valida, pallide flavo-rufescens, in cortiee longe prostrata 

 lateque expansa. Caulis ad 6 cm. longus, irregulariter breviterque 

 pinnatus. Folia caulina irabricata, subrecte patula, parum concava, in 

 plano late ovata (1,46 mm. longa, 1 mm. lata) subsymmetrica, apice 

 late triangulata, obtusa, ad medium accreta. Cellulee supera 48x27 ji 

 trigonis parvis, parietibus flexuosis, basales 18X36 ^ trigonis vali- 

 dioribus, parietibus strictis. Lobulus magnus, e lata basi attenuatus, in 

 folii marginem incurvum evanidus, carina valde arcuata, oblique 

 adscendens, inflata, amplo sinu in folii marginem excurrens, in plano 

 ovato-oblongus, apice quam basis 3 plo angustiore, oblique truncato, 

 biangulato. Amphigastria caulina majuscula, caule plus triplo latiora, 

 sinuatim inserta, basi obcuneata, subrotunda. Androecia numerosa in 

 caule ramisque terminalia, bracteis ad 10 jugis, saepe seriata 



Hab. Borneo. 



46 



