Descriptions of Plants belonging to the Genus Hoy a. 17 



to separate it as a distinct genus, and it was included* in 

 Asclepias in the Supplementum Plantarum, published by his 

 son in 1781. Loureiro, who at least saw one species of 

 the genus, and perhaps more, in their native state, referredf 

 them to Stapelia. Mr. Robert Brown first constituted the 

 genus Hoy a in the year 1809,]! in his treatise on the Ascle- 

 piadeae in the Wernerian Transactions, the name being given 

 in compliment to the late Mr. Thomas Hoy, a Fellow of the 

 Horticultural Society, and long known as a scientific and 

 skilful cultivator in his capacity of Gardener to the Duke of 

 Northumberland, at Sion House. The present Baron J ac- 

 quin in 1811, uninformed of Mr. Brown's publication, owing 

 to the precluded intercourse between Great Britain and the 

 Continent at that period, in considering the Asclepias carnosa 

 of Linnaeus, as belonging to a new genus, called it Schollia,§ 

 after Mr. George Scholl, a principal Gardener in the Impe* 

 rial Garden of Belvedere, near Vienna ; but this name has 

 since yielded to the precedence to which Hoya was entitled. 



The plants in cultivation belonging to the genus will be 

 found to agree in the following general characters, the in- 

 sertion of which in this place will save the repetition of them 

 in the description of each species. 



The stem is ligneous, round, flexible, and of a light colour, 

 clinging for support on things near it, and putting out more 



* Linn^ei fiL Supplementum Plantarum, page 170. 



•f Loueeieo Flora Cochinchinensis, Edit. 1, 1790, page 165; Edit. 2, a 

 Willdenow, 1797, Vol. i. page 205. 



% Memoirs of the Wernerian Society, Vol. i. page 27 ; and Hortus Kewensis, 

 Edit. % Vol. ii. page 84. § Jacquin Eclogae, Vol. i. page 5, plate 2. 



VOL. VII. D 



