Pentaeme suavis, a large more deciduous tree, gregarious in Upper Burma, 

 with show}' panicles of yellow flowers, | in. over-all, balloon-shaped; stamens 15, 

 connective and 4 anther-tips equally prolonged as 5 awl-like processes. All the 

 sepals enlarge in fruit, but i, 2, and 3, are larger, 3 in.; the fruit, 20 mm., being 

 exposed between their bases. 



Dipteroearpus tuberculatus, In (Eng), large gregarious tree, dominant and 

 characteristic of Burmese Indaing-forest on laterite; coriaceous foliage-leaves to 

 18 in. long and 14 broad, deciduous in hot season. Injlorcsccnce of a few (4-7) 

 flowers in axillary clusters towards ends of blanches, as reduced cymose systems. 

 Flowers dull-purple, 2 in. across, with contrasting grey tomentose calyx : receptacle 

 slightly crateriform. Calyx a massive gamosepalous tube, 10 mm., closely investing 

 the essential organs, with slight commissural ridges. Free segments cjuincuncial, and 

 I, 2, to 15-20 mm., the others half as long. Corolla markedly convolute (Lin 

 R-hand flower). Androecunn of 30 (15 -t- 10 + 5) stamens, symmetrically spaced; 

 connective-extension 2 mm. Gytiocn'um of 3 carpels ; upper part of o\ary massive, 

 style straight, with 3 minute stigma-lobes. Trigger-mechanism and no obvious 

 nectary. 



In fruit the style is broken away leaving a stout pointed nut, 20 mm., i -seeded, 

 with large folded cots., and enclosed in massive woody calyx-tube, i-i-g in. diam. ; the 

 wings of seps. i and 2 are 6-7 in. long and i in. broad, 3-veined ; sepals 3, 4, 5, small 

 and reflexed. The commissural ridges are enlarged and ' tubercled ' above. The 

 spinning-mechanism depresses the 'wings' on a lo-inch circle. Germination 

 hj'pogeal and immediate. An advanced xeromorphic type. Other forms characteristic 

 of moist, more evergreen tropical forest are : 



D. turbinatus, Kanyin, a tall tree (150 ft.) of mixed forest in Burma, very 

 similar, but lacks the tubercled commissural ridges, the wings smaller, 5 in. In 

 D. costal us and D. alatus the ridges are greatly exaggerated, and there is much 

 variation in details of fruit. For representative species cf. D. zcylankus of Ceylon, 

 D. indicus of VV. Ghats, D. Bourdilloni of Travancore 150 ft. and 5 ft. diam., 

 D. pilosus in damp evergreen forest Assam, with wings 7-9 in., D. Dyeri, Cochin 

 China. 



Cf. also Vatica Roxburghiana, of evergreen forest of S. Kanara and Ceylon ; 

 fruit subglobose, i-i^ in. diam., woody and hairy, retaining 3 coriaceous sepals, 

 but not ' winged '. 



Vateria indica, evergreen forests of W. Ghats, and cult. ; with gum-resin 

 (Piny Varnish) : In fruit (2-2'^ in.) the sepals are reflexed and dehiscence is by 

 3 valves. Seeds large and storing fat (Piny Tallow) ; stamens 40-50 ; possibly the 

 most generalized of the family. 



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