ASCLEPIADACEAE 



439 



The type of Asclepias sussuela Roxb. was from the Moluccas. 

 While the original description is very short, the species is 

 certainly the same as the one later minutely described and figured 

 by Blume as Hoya corona ariadnes. Roxburgh reduces Corona 

 ariadnes punicea to his species in the original description of 

 Asclepias sussuela Roxb. ; his species has been reduced to Hoya 

 imperialis Lindl. (1846), which is perhaps another synonym of 

 Hoya sussuela (Roxb.) Merr. The type of Hoya speciosa Decne. 

 was from Amboina. Hoya ariadna Decne. was apparently based 

 wholly on the Rumphian description and figure. Blume, Bijdr. 

 (1826) 1063, originally reduced the Rumphian species to Hoya 

 coronaria Blume, a species based on Javan material and distinct 

 from Hoya sussuela (Roxb.) Merr. (H. corona ariadnes Blume). 



HOYA ALBA Kostel. Allgem. Med. Pharm. Fl. 3 (1834) 1084 (type!). 

 Nummularia lactea major II alba Rumph. Herb. Amb. 5: 470. 



This species is of entirely doubtful status. It was referred by 

 Henschel to Hoya diversifolia Blume, while Hasskarl, Neue 

 Schliissel (1866) 148, thought that it might be Cyrtoceras multi- 

 flora Heynh.=Hoya multiflora B\ume=Centrostemma multiflo- 

 rum Decne. There is no reason, however, for considering it 

 other than a true Hoya. 



HOYA EL EG AN S Kostel. Allgem. Med. Pharm. FL 3 (1834) 1084 (type!). 

 Nummularia lactea major IN (albo-purpurea ) Rumph. Herb. Amb. 

 5: 471. 



Amboina, Soja and Hitoe messen, Robinson PL Rumph. Amb. 83, 604, 

 August and October, 1913, in light forests, altitude 175 to 300 meters, locally 

 known as bung a nasi. 



Hasskarl, Neue Schliissel (1866) 148, thought that this 

 Rumphian form might be a synonym of Hoya macrophylla 

 Blume, a species originally described from Javan material. 

 Hoya elegans Kostel. was based wholly on the Rumphian de- 

 scription, and this name is here retained. 



HOYA sp. 



Nummularia lactea minor Rumph. Herb. Amb. 5: 471 (in expl. pi.) 

 t. 175, f. 2. 



Amboina, Hitoe lama, Robiyison PI. Rumph. Amb. 81, November 1, 1913, 

 on trees, altitude about 150 meters. 



The specimen agrees fairly closely with the figure, which was 

 placed by Lamarck, Encycl. 1 (1783) 214, with doubt under 

 Apocynum tiliae folium Lam., where it certainly does not belong. 

 The species figured is manifestly a Hoya, but I cannot locate 

 any description of it in Rumphius, merely the name in the 

 explanation of the plate. 



