36 Materials for a Flora of the Malayan Peninsula. 



Perak; King's Collector, Nos. 4631, 4795, 6864? Burma: Wall. 

 Cat. 8069. 



I have compai'ed the authentic specimens of the Leiden Herbarium 

 of G. patens, Blume, with the type specimens at Kew of G. fragrans, 

 Hiern ; and I find them to agree exactly. I therefore adopt the older 

 name. The male panicles of this are rather longer and widei- at the 

 base than the female panicles ; but both are pyramidal. I believe the 

 plant issued by Wallich as a Gupania (No. 8069 of his Catalogue) may 

 belong to this. The specimens are in fruit only and were originally 

 named by Wallich Trichelia longissima. 



5. Dtsoxylum, Blume. 



Trees, mostly glabrous. Leaves pinnate ; leaflets entire, opposite sub- 

 opposite or alternate, more or less acuminate at the apex and oblique at 

 the base, coriaceous. Floivers paniculate, racemose or spicate, hermaphro- 

 dite. Galyx 4- rarely 5-fid, dentate or partite or sub-entire, imbricated, not 

 accrescent. Petals 4, rarely 5, oblong, spreading, valvate or slightly 

 imbricated. Staminal tube cylindrical, dentate or crenulate at tlie mouth; 

 anthers 6, 8 or 10, short, included or the tips exserted. Disc tubular, 

 equal to or twice as long as the ovary, crenulate or entire at the mouth. 

 Ovary usually 3- 4-celled ; style about equalling the staminal tube; ovules 

 usually 2 in each coll. Gapsule globose or pear-shaped, coriaceous (often 

 thickly bo), 1- 4-celled, loculicidal ; seeds arillate or exarillate, exal- 

 buminous. — 



DiSTRiB. Species about 100, mostly found in the Malay Archipelago, 

 but some in Australasia. 



Flowers pentamerous. ... ... ... 1. D. arhorescens. 



Flowers tetramerous. 



Inflorescence paniculate. 



Panicles slender, lax, few-flowered. 



Leaflets linear-lanceolate ; flowers '6 in. 



long ... ... ... 2. D. angustifolium. 



Leaflets oblong-lanceolate, caudate-acu- 

 minate ; flowers '15 in. long ... 3. D. dumosum. 

 Panicles with few branches ; the branchlets 

 very short, spicate, distant ; the flowers 

 only •! in. long, densely crowded ... 4. D. interruptum. 

 Panicles with many divaricating branches, 

 many-flowered. 

 Leaflets minutely rugulose when dry, 



their main nerves indistinct ... 5. D, acutangulum. 



524 



