164 Transactions of the 



III. Accounts and Descriptions of the several Plants belonging to the 

 genus Hoya, which are cultivated in the garden of the Horticultural 

 Society at Chiswick. By Mr. James Traill. 



The beauty of one species of Hoya, viz., H. carnosa, has 

 long caused it to be a favourite with collectors. The object 

 of the writer of this paper is to call attention to such othei's 

 as are known to exist in garden^, or as'a^^^^ 

 records of the botanist. \ V - . 



The following species form the subject of the paper, viz. : 



1 Hoya carnosa, R, Brown. 2 Hoya crassifolia, Ha- 

 "Worth, 3 Hoya pallida, Lindley. 4 Hoya Pottsii, (Tab. I.) 

 5 Hoya trinervis. 



These five are all the species at present cultivated in gar- 

 dens ; ethers are known to exist in the v/armer regions of 

 Asia, where they should be assiduously sought for by tra- 

 vellers, as they are not only very ornamental, but also easily 

 to be transported to Europe. ^ ^ 



From such materials as he has been able to procufe^ , the 

 \vriter enumerates the following as completing the genus 

 Hoya, as far as at present ascertained : 



6 Hoya chinensis. 7 Hoya viridiflora, R. Brown, 8 

 Hoya lanceolata, D. Don. 9 Hoya linearis, D. Don, 

 10 Hoya australis, R. Brown, MSS. 11 Hoya nicobarica, 

 R. Brown, MSS. 12 Hoya augustifolia. 



The paper concludes with a detailed explanation fOif^ the 

 best manner of cultivating ^oy^^f ';;^^^iia't^n9^^^^ 



XV. On acclimatizing Plants at Biel,in East Lothian. ' By Mr. Jonjti 

 Street, gardener to the Honourable Mrs. Hamilton Nesbitt. '"',^ 



Perhaps there is no point whatever, connected with Horti- 

 culture, of greater interest than that which forms the subject 

 of this paper ; it is the distant goal towards which we all are 

 striving, but of which, alas I we have not as yet even caught 

 a glimpse. The gardener is in possession of the powers by 

 which lie can bend the seasons to his will ; he can dispel the 

 frozen gloom of winter with the rich warm glow of the vin- 

 tage ; at his call the flowers of spring and summer start up be- 

 neath liis feet, and his hothouses are filled with the luscious 

 fruits of the torrid zone. All this he knows how to effect 

 with an artificial climate ; but he has no influence over the 

 natural climate of his country, nor can he impart to the 

 vegetation of warmer latitudes the least additional power of 

 resisting cold, for which they have not been prepared hy 

 nature. Acclimatizing is still a secret to be discovered. To 



