CONTRIBl'TION TO OUR KNOWLEDGE OF PAPUAN FLORA. 41 



coriaceous and more strongly veined leaves, its wider spreading panicle, 

 and more pointed calyx lobes. In systematic position it comes between 

 B. florida and B. Muelleri. 



B. flonda : Drupe p;labrous, apex excentric. Leaves 10-15 cm. 

 long, 4-5 cm. broad. 



B. Muelleri : Drupe clothed with a few scattered hairs. Leaves; 

 ca. 10 cm. long, 5-6 cm. broad. 



B. papuana : Drupe clothed with a few scattered hairs. Leaves 

 11-19 cm. long, 5-7-5 cm. broad. 



Semecarpus australiensis Engler. Port Moresby. 



S. undulata sp. no v. 



Arbor humilis, ramulis crassis ; foliis breviter petiolatii> 

 obovato-lanceolatis breviter acuminatis, basim versus a triente 

 superiore longe ciineatim angustatis, undulatis, coriaceis, 

 supra glabris nitidiilis, subtus pallidis reticulatis, costa et 

 nervis lateralibus tenuiter pilosis, venis tenuiter pilosis et 

 glanduloso-punctatis ; paniculis axUlaribus vel lateralibus. 

 elongatis, ramulis tenuis glabrescentibus ; floribus masculis 

 glomeratis, calycis 5-lobis, strigoso-pubescentibus, petalLs 

 strigoso-pubescentibus, staminibus glabris petalis sequantibus ; 

 drupis ovoideis compressis pubescentibus, apiculo centrico 

 hjrpocarpio obconico, pubescentibus. 



A small tree, usually with a single stem, the leaves 

 arranged around it in dense false whorls. Leaves subsessile, 

 or very shortly petiolate on a petiole of 2-5 lines (•4-1" 1 cm.) ; 

 lamina 7-14 cm. (17'o-36 cm.) long ; obovate-lanceolate. Apex 

 shortly and rather bluntly acuminate, lower part gradually 

 tapering to the base, under surface pale coloured — but not 

 white — ^with a very dense close toraentum between the veinlets, 

 the veins and veinlets prominently raised, clothed with a feM' 

 scattered hairs and glandlike markings. Panicles lateral or 

 axillary, branched at the base into several elongate slender 

 branches, the branches glabrescent, the main rhachis in the 

 specimens to hand attaining 2 ft. 9 in. (82-o cm.) long. Male 

 flowers whitish, in dense clusters along the branches of the 

 panicle ; calyx strigose-pubescent, 5-lobed, scarcely | line (1 mm.) 

 long ; petals strigose-pubescent on the outer surface ; scarcely 

 1 line (Ij mm.) long, stamens about the same length as the 

 petals, filaments glabrous, slightly flattened at the base. Female 

 flowers unknown. Drupe green (perhaps not seen quite ripe), 

 about IJ in. (32 cm.) long and f in. (2 cm.) broad m the dried 

 specimens, compressed-ovoid, apex almost centric ; pericarp 



