— 319 — 



lu Herb. Bog: 



Celebes, Miiialiassa, A'oo/ï/^rs 16!60j''^,18326 [".. 

 Nova Giiiiica. Dore, Tcysmann 6768 II.B. 

 Sumatra, Sibolaiigit, Lorzitig 5229, effcrata. 



Rcs. Palembang, Afd. Moelak Oeloe, Graslioff No. 340, in vicis 

 indigcnarum ciilta. Pisang kwali, inc. 



11. TRIURANTHERA Backer, 

 a ncw ireniis of Melastomataceae. 



Iii Octobcr of last year Mr. Bakhuizen v.an den Brink, Assistant 

 at the Buitenzorg Herbarium, when returning from a botanical trip 

 in the West of Java, brought home some living spécimens of a hitherto 

 unknowii Meiastomataceous plant, which" was as far as could be judged 

 from the structure of ihe flowers nearest allied to, though generically dif- 

 férent from, Phyliagathis. The exact position in the System could 

 not be ascertained as ripe fruit were iiot présent at the moment. 



The spécimens brought by Mr. B.akhuizen were cultivated in 

 the Botanical Gardens, throve very well and produced in good time the 

 fruit waiited so that it became possible to détermine them. They proved 

 to belong to a new genus the characters of which are given beneath. 



TRIURANTHERA Backer, genus nov. 



Flores 4-meri, cymosi, cymis pedunculatis. Calycis tubus campanulatus, 

 quadrangulari-quadralatus, limbus persistens, brevis, acute 4-dentatus, den- 

 tibuscumtuberculo parvulo nudo alternantibus. Petala oblique obIonga,stamina 

 8, aequalia, filamentis filiformibus, antheris in alabastro inflexis, sub anthesi 

 erectis leviter curvatis apicem versus attenuatis subundulatis apice 1-porosis, 

 connectivobasi haud incrassato nec infra loculos producto, antice 2-, postice 

 1-appendiculato, appendicibus filiformi-subulatis, antheras subaequantibus an- 

 ticis in alabastro cum anthera inflexis sub anthesi erectis, postica in alabastro 

 erecta, sub anthesi adscendens. Ovarium tota parte inferiore calyci adnatum, 

 parte superiore omnino liberum, pyramidali-tetragonum apice exsculptum 

 angulis lateralibus sulcatis, loculis 4, calycis dentibus oppositis, placentis an- 

 gul.is interioribus affixis vaide prominentibus, ovulis numerosissimis, stylo fili- 

 formi, apice decurvo, stigmate subdilatato. Capsula calycis limbo coronata, 

 campanulata, acute quadrangulari-quadralata, apice valvulis 4 loculicide dehis- 

 cens. Semina numerosissima auguste cuneata apice angulâ rectâ curvata. Herba 

 perennis, erécta, foliis oppositis breviter peliolatis, oblongo-lanceolatis, 

 subtus valide nervosis. 



The genus is nearest allied t o Phyliagathis but differs by the 

 3-cau,date connectivum, the persistent limb of the calyx and the oblong- 

 lanceolate leaves. 



Up to now only a single species is known, viz. 



