EIPTEPOCAPLPACEM. 217 



Blume, 1 in 1825, established this small family, since then admitted 

 by all botanists. 2 Before him the known genera which belong to it 

 were placed by A. L. de Jussieu 3 in the order of Guttifers ; Lindley, 

 who left them in his Guttiferal Alliance, included in it the genera 

 Dipterocarpus, Anisoptera, Dryobalanops, Vatcria, Vatica and Hopea. 

 Endlicher, placed beside them Zop/iira, considered by several authors 

 as the type of a distinct group/ because of the mode of placentation 

 of the one-celled ovary. He re-included in the genus Vatica, Eox- 

 burgh's Shorea, now considered as distinct : since then the English 

 botanists have added to the family the three genera Doo/ta, 5 Mono- 

 porandra 6 and Pachyuocarpus," and have incorporated there the 

 Ancistrocladus of Wallich, 8 of which it had also been proposed to 

 make a distinct family. 9 This exceptional type has affinities with 

 Zop/iira, the Huyonece, Symp/ocece, 10 Gyrocarpece, Combretacece," &c. 

 Apart from this genus and Lophira, which recalls in certain respects 

 the Clusiacece, and Hypericacece with one-celled ovary, the whole of the 

 group is certainly nearly allied to Tiliacecs and Ternstrcemiaceee. 

 From the former it differs principally by the imbricated pignoration 

 of the calyx, the form of the receptacle, which is often concave, 

 being slightly perigynous, the organization of the seed and the 

 development which is frequent in the sepals round the fruit. These 

 latter features separate it pretty clearly in most cases from the Tern- 

 strcemiacea, 1 ' 2 the calycinal pignoration of which is the same. In 1846 

 Lindley reckoned forty eight species of Dipterocarpacece ; a hundred 

 are now admitted, all natives of the warmest regions of Asia and 

 tropical Oceania, except three or four belonging to Western or Central 

 Africa. All are trees or shrubs with resinous or camphorous juice, 

 sometimes climbing, with alternate penninerved leaves, entire or finely 

 crenate. The stipules are small or wanting, sometimes very large 



1 Bijdr., 222 (Dipterocarpece). 8 Cat., n. 1052 (1828). 



2 Endl., Enchirid. (1841), 525, ord. 215; 9 Pi., Ess. Monogr. of a New Fam. de PI. 

 Gen., 1012, ord. 213 {Dipterocarpece). — Lindl., prop, under the name of Ancistrocladece [in Ann. 

 Veg. Kingd. (1846), 393, ord. 141 (Dipteracea). Sc. Nat., ser. 3, xiii. (1849), 316]. 



— B. H., Gen., 189 (1862), ord. 29.— A. DC, 10 Pi., loc. cit., 319. 



Prodr., xvi. 604, ord. 29 ter. " Oliv., Fl, Trop. Afr., i. (1868), 175. 



3 Gen. (1789). 32 "A Ternstrcemiaceis Dipterocarpece differ. 



4 Lophiracea Endl., Gen., 1014. — Lindl., op. iinprim. calyce fructif. sajpiss. aucto et setu. solit. 

 cit., 395.— A. DC, Prodr., xvi. 638. exalbum., cotyl. magn. crass., id quod in illis, 



5 Thw., in Hook. Lond. Journ., iii. (1844). nisi in paucis gen. inter Gordonieas, non obser- 



6 Tbw., in Hook. Lond. Journ., vi. (1847). vatur." (B. H., loc. cit., 190.) 

 " Hook, f., in Trans. Linn. Soc, xxiii. 



(1860). 



