ASGLEPIADACEAE 



435 



Asclepias gigantea Linn. Sp. PL (1753) 214. 

 Madorius Rumph. Herb. Amb. 7: 24, t. 1U, f. 1. 



This characteristic species, fairly well figured by Rumphius, 

 is not represented in our Amboina collections. Madorius 

 Rumph. was originally reduced to Asclepias gigantea Linn, by 

 Linnaeus, in Amoen. Acad. 4 (1759) 136, which as Calotropis 

 gigantea Dry. is manifestly the correct disposition of it. It 

 has been very generally cited in botanical literature under Calo- 

 tropis gigantea Dry. The form described by Rumphius in the 

 same chapter as Madorius II albifloris is probably merely a variant 

 of Calotropis gigantea Dry. 



CYNANCHUM Linnaeus 



CYNANCHUM OVALI FOLI U M Wight Contrib. (1834) 57. 



Sussuela esculenta II femina Rumph. Herb. Amb. 5: 467, t. 178, f. 2. 

 Amboina, Hatiwe and Liang, Robinson PL Rumph. Amb. 86, September 

 and November, 1913, in thickets, altitude 15 to 100 meters, locally known 

 as sayor susu laki laki. 



The specimen agrees perfectly with Rumphius's figure and 

 description and certainly represents Sussuela esculenta mas. I 

 am unable from the published descriptions alone to distinguish 

 this Amboina specimen from Cynanchum ovalifolium Wight. 

 If it does not represent Wight's species, then it represents a very 

 closely allied one. The only previously suggested reduction of 

 Rumphius's species was Hasskarl's doubtful reference of it to 

 Secamone lineata Blume, where manifestly it does not belong. 



CYNANCHUM sp.? 



Sussuela esculenta I mas Rumph. Herb. Amb. 5: 467, t. 173, f. 1. 

 Amboina, Hoetoemoeri road, Robinson PI. Rumph. Amb. 85, September 

 30, 1913, climbing over trees, altitude about 40 meters. 



The specimen probably represents the form that Rumphius 

 described, but this is uncertain, and its further identification is 

 impossible at this time as the material presents only leaves and 

 mature follicles. Sussuela esculenta mas Rumph. is certainly 

 no Dischidia, where it was doubtfully placed by Hasskarl. A 

 possible generic identification of it is Telosma. 



GYM N EM A R. Brown 



GYMNEMA SYRINGAE FOLIUM (Decne.) Boerl. Handl. Kenn. Fl. Nederl. 



Ind. 2 2 (1899) 437. 

 Bidara syringaefolia Decne. in DC. Prodr. 8 (1844) 623. 

 Marsdenia syringaefolia Decne. in Ann. Sci. Nat. II 9 (1838) 275, 



i. 10, f. G. 



Olus crudum minus Rumph. Herb. Amb. 5: 75, t. 1^0, f. 2? 



