[ 671 ] 
XLIII. Account of two new Genera allied to Olaciner. By Grorcr 
Bruti, Esq., F.L.S. 
Read December 15th, 1840. 
AMONG the plants collected by Mr. Schomburgk in British Guiana, are 
two species of a new genus allied in many respects to the order of Olacineæ ; and 
in a collection from a very different quarter, Port Natal in South Africa, com- 
municated to me by Mr. Harvey, are fine specimens in flower and fruit of 
another new genus related to the same order, Apodytes dimidiata, named by 
Ernst Meyer among Drége's plants, but as yet undescribed. As the deter- 
mination of these genera has led me into some inquiry as to the affinities of 
others belonging to the same group, and as they may serve in some measure 
to throw light upon this small but curious order, I beg to offer to the Linnean 
Society the accompanying figures and descriptions, together with such obser- 
vations as have suggested themselves to me. 
The Olacineæ were first established as a distinct order by Mirbel*, who 
placed them among Polypetale near Aurantiateæ. ` Jussieu}, in adopting 
the order, insisted upon its near relation to Symploceæ, near which he had 
originally enumerated Olaz amongst the “genera Sapotis affinia.” Brown 
afterwards $ replied to Jussieu's objections to the affinities he had formerly || 
pointed out between Olaz and the Santulacem, and admitting the Olacinec as 
a separate order, still concluded, nevertheless, that they should be placed next 
to Santalaceæ. Since that time, however, botanists do not appear generally 
to have adopted that opinion; and DeCandolle€, Wight and Arnott **, 
* Nouv. Bull. de la Soc. Philomathique, 1813, p. 377. 
T Mémoires du Muséum, vol. ii. p. 439. : Genera Plantarum, p. 153. 
$ Appendix to Flinders’ Voyage, p. 570, and Appendix to Tuckey's Congo, p. 552. (Verm. Schr. 
ed. Nur., vol. i. pp. 89 and 260.) 
|| Prodr. FI. Nov. Holl., p. 357. «| Prodr. Syst. Nat., vol. i. p. 531. 
** Prodr. Fl. Penins. Ind. Orient., vol. i. p. 88. 
