436 



RUMPHIUS'S HERBARIUM AMBOINENSE 



Gymnema sy ring ae folium Boerl. is probably the correct dis- 

 position of Olus crudum minus Rumph. The first reduction was 

 that made by Murray, Syst. (1774) 213, who cited the Rumphian 

 name as a synonym of Apocynum reticulatum Linn., where it 

 certainly does not belong, although following Murray it has been 

 so listed by Loureiro, Willdenow, Poiret, Roemer and Schultes, 

 Henschel, Don, Dietrich, and Pritzel. Lamarck, Encycl. 1 (1783) 

 214, placed it under Apocynum indicum Lam., a synonym of A. 

 reticulatum Linn. Wight and Arnott and Dietrich placed it 

 with doubt under Gymnema tingens W. & A. ; and likewise 

 Decaisne and Miquel, with doubt, placed it under the synonym 

 Bidara tingens Decne. 



GYMNEMA sp. 



Olus crudum majus Rumph. Herb. Amb. 5: 76, t. UO, f. 1. 



The figure represents a species apparently very similar to 

 Olus crudum minus Rumph., but its status cannot be determined 

 without material from Amboina representing it. Wight, Don, 

 Decaisne, and Miquel placed it with doubt under Marsdenia 

 angustifolia Wight, and Dietrich placed it under the synonym 

 Pergularia angustifolia Dietr. The species described and fig- 

 ured by Rumphius is probably a Gymnema; it certainly is not 

 Marsdenia angustifolia Wight. 



TYLOPHORA R. Brown 



TYLOPHORA sp.? 



Olus crepitans I mas Rumph. Herb. Amb. 5: 469, t. 17 U, /• 1- 

 Amboina, Amahoesoe, Robinson PL Rumph. Amb. 92, August and Septem- 

 ber, 1913, climbing over trees at low altitudes. 



I am not certain that the specimen is a Tylophora, although 

 the specimen cited evidently represents Olus crepitans mas of 

 Rumphius. The only previously suggested reduction of it was 

 Hasskarl's doubtful reference of it to Hoya latifolia Don, where 

 it certainly does not belong. 



DISCHIDIA R. Brown 



DISCHIDIA NUMMULARIA R. Br. Prodr. (1810) 461. 



Nummularia lactea minor I minima Rumph. Herb. Amb. 5: 472, t. 



176, f. 1. 



Amboina, Way tommo and Kati-kati, Robinson PI. Rumph. Amb. 88, 

 August and October, 1913, on trees in mangrove swamps and on Mela- 

 leuca at an altitude of about 100 meters. 



This reduction was made by R. Brown in the original descrip- 

 tion of Dischidia nummularia R. Br. and is apparently the cor- 

 rect disposition of the Rumphian species. Miquel, however, 



