10 NATURAL HISTORY OF PLANTS. 



Tricholobus consists of trees from the Indian Archipelago 1 and 

 Cochin China, 2 with alternate imparipiimate, glabrous or hairy leaves ; 

 the flowers are in axillary or terminal racemes of cymes. As yet 

 three species are known. 



As in the genus Rourea, with the greater number of species 

 possessing plurifoliolate leaves, we find some species in which they 

 are unifoliolate ; so in some species of Tricholobiis from India and 

 Malaysia, to which the name ffllipant/ius 3 has been given, the 

 leaves have only a single leaflet : but as all the essential characters of 

 flower and fruit are identical, we can only make this a section of 

 the genus Tricholobus. Four species are known, natives of India 

 and Malavsia. 4 



This small order, as we have just studied it, dates no great way 

 back. A. L. de Jussieu 5 followed his predecessors in putting 

 Connarus, Omphalobium, and Cnestis, the only genera of the order 

 then known, in Terebintltacece. It was R. Brown who, in his cele- 

 brated work on the plants of western tropical Africa, 6 proposed in 

 1818 to found an order Connaracece, which should include the three 

 genera Connarus, Cnestis, and Rourea. He considered that the 

 insertion of the stamens was only doubtfully hypogynous ; but that 

 the most important character of the group lay in the attachment of 

 the collateral ovules by a basilar or subbasilar hilum ; while in the 

 seed the radicle of the embryo was superior. Thus, he distinguished 

 Connaracea sharply from Terebinthacea, making the ovule and seed 

 orthotropous in the former, and anatropous in the latter. Kunth 7 

 in 1824 simply followed Brown, admitting Connaracece without 

 comment as a distinct order just like Juglandea, Amyridece, &c. ; 

 including the three genera given by I{. Brown, and adding BruneUic? 

 and Brucea as "genera Connaraceis affinia." Endlicher 9 retained the 



nans, Manotes, &c, it may be much higher. 4 Wall., Cat., n. 8551 {Connarus mono- 



This is the case in T. /ulcus Bl., whose ovule phyllus). — Thw., Euum. PL Zeyl., 80, 410 



has hence been described as anatropous. In (C. unifolialus). 



this species the micropyle tips the very long b Genera Plardarum (1789), 369. — De 



tapering conical apex of the ovule, and is quite Candolle (Prodr., ii. 81) also made Connaracece 



superior, while the attachment of the ovule is at a tribe (seventh) of his Terebinthacea. 



nearly one-third its length from its base. Hence 6 Congo, 431; Misc. Works, ed. Be>'X., i. 



the anatropy is very incomplete, and especially 112. 



less complete than in certain species of Manotes. 7 Saying however of this genus, " Diosmeis 



1 Bl., loc. cit. — MiQ., Fl. Ind.-Bat., i. p. 2, propior." 



666.— Walp., Ann., ii. 304. * In Ann. Sc. Nat., ser. 1, ii. 359. 



2 H. B>\, in Adansonia, ix. 150, n. 24. 9 Genera Plantarum (1836-1840), 1139, 



3 Hook. F., Gen., 434, n. 11. Ordo ccxlvii. 



