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98 XXV. BiPTEROCAKPE^. (W. T. Thiselton Dyer.) [Dipterocarpus. 



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12. D. scabridus, Thwaites Enum. 34 ; leaves elliptic-oblong acuminate 

 base rounded margins ciliate, calyx-tube in fruit subglobose with distant 

 stellate hairs angles with undulate wings ^ in. wide reaching to the pedicel. 

 A, DC. Frodr. xvi. 2, 612. 



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Ceylon ; near Eatnapoora, Thwaites. _ i i, • 



Young branches, petioles, and the under surface of the midrih with appressed nau^. 

 Leaves about 7 by 2f-3 in., glabrous above, glabrescent beneath except on the midnb 

 and nerves, lateral nerves 12-15 pairs ; petiole | in. Fruit-wings (calvx-lobes) 4 by 1 in. 

 linear-lanceolate, obtuse. 



13. D. alatus, Roxh. Ilort Beng. 42; FL Ind. ii. 614; leaves ovate or 



:alyx-tube in fruit globose angles with wings i in. broad. 



elliptic acute, c 



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Wall. Cat 953 ; A. DC. Frodr. xvi. 2, 611 in part 



Fruct iii. 50, t. 187 (bad). D. gonopterus, Turcz. in Mosc. Bull 1863, 57b; 

 A. DC. Frodr. xvi. 2, 612. Oleoxylon balsamiferum, Walt Gat p. 157. • 



Chittagong, Birma, Tenasserim, Andaman Islands. — Distrib. Siam. 



Young branches compressed, pubescent. Leaves b\ by 3 in., shining above, ™^^®- j*J 

 less pubescent beneatb, margins ciliate, lateral nerves 15 pairs; petiole ?i,!"'l^?-^ 

 pubescent-hairy; stipules pilose. Racemes about 7-iiowered. Calyx-tube in 'i""" ^ ' ' 

 diam., smooth, fruit-wings (calvx-lobes) 4-5 by 1 in., linear-ovate or spathulale, obtuse, 



:s orbicular.— Kanvin.—Gsertner's figure is bad asis sho^n oy 



3- nerved, unenlarged lobes orbicular. — Kanyln. — Gaertner's figur.> . 



Hamilton's specimens in the Banksian Herbarium, from which it appears to nave oe^^ 

 drawn ; his specific name suits the drawing, but is inapplicable to the species. 1 ^^ 

 therefore adopted Roxburgh's. 



U. D. Incanus, Roxh. HoH. Beng. A2)FL Ind. ii. 614; leaves ovate 



obtuse. W. & A. Frodr. 84; A. DC. Frodr. xvi 2, 611. 



'^K. 





Leaves 6 by 4| 



ibescent 



Chittagono, Roxburgh; Pegu, Kurz. 



Young parts and compressed branches softly hairy-pubescent. 

 in., thinly pubescent on both surfaces, margins cih'ate, lateral nerves 12 pairs, P"^";^"' 

 beneath ; petiole 2 in., softly pubescent. Calyx-tube (in flower) softly pubescent, siroi s ; 

 winged. ■ 



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15. D. inslgrnls, Thwaites Emm. 34 ; leaves ovate apiculate base obtus^^^ 

 flowers subsessile, calyx-tube in fruit narrowly ovoid, angles witn w o 

 i in. wide mouth scarcely contracted, fruit-wings (calyx-lobes) witn 

 principal nerve. A. DC. Frodr. xvi. 2, 612. 



Leaves 4-6 by 2J'3 in. 



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16. 1>. pterygrocalyx, Schef. Ohs. Fhyt ii. 35 ; leaves elbpt^^ o^^^^ j^ 

 oblong-ovate shortly and abruptly acuminate base truncate, ^^y*". „ct^ 

 fruit ovoid angles with wings nearly \ in. wide mouth slightly com 

 fniit wings (calyx-lobes) sub-3-nerved central nerve prominent. 



# ■ 



Malacca, ifaiH^au.— Distrib. Banca. A-in by ^^ '"'' 



Young branches subcompressed with deciduous canescence. Leases 4-1^ y^. ^^^x 



glabious on both surfaces, margins sinuate-crenate and undulate, ^^^^ p^Lmes »^^ 



18 pairs, rather remote ; petiole 2-3 in. ; stipules pale, glabrous, f^^- ljuea^ 



5-flowered. Calyx-tube in fruit 2 in. long, glabrous; fruit-wings 7 by ^4"^ . '' 



oblong, obtuse, unenlarged lobes broadly ovate or orbicular. :?v 



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