446 



RUMPHIUS'S HERBARIUM AMBOINENSE 



conforms much more closely to Ipomoea congesta R. Br. than 

 to I. nil Roth, and I believe that it is here correctly placed. 



IPOMOEA RUMPHII Miq. Fl. Ind. Bat. 2 (1857) 605 (type!). 



Convolvulus laevis indicus major II rubra Rumph. Herb. Amb. 5: 



429 (excl. t. 157, f. 1). 



Ipomoea rumphii Miq. is a species of doubtful status and is 

 based wholly on Rumphius, from whose description it must be 

 interpreted. Our Amboina specimens do not include sufficient 

 material to solve the status of the species. The figure, t. 157, 

 f. 1, supposed to represent Convolvulus laevis indicus major 

 rubra of Rumphius, is discussed under Merremia peltata (Linn.) 

 Merr. above, as almost certainly representing that species ; there 

 are no characters in the two figures by which two species can 

 be distinguished. The description, however, calls for a plant 

 with cordate leaves, usually solitary flowers, the corolla purplish 

 toward the apex, and the tube white within and deep purple at 

 the base. I suggest that the description for the most part applies 

 to Stictocardia campanulata (Linn.) Merr. (S. tiliae folia Hallier 

 f.), and that Ipomoea rumphii Miq. may thus be a synonym of 

 this species. Additional material from Amboina will be neces- 

 sary before the matter can be definitely settled, for no Sticto- 

 cardia appears in our collections, although the species is certainly 

 to be expected in Amboina. 



fPOMOEA PELTATA Choisy var. NIGRICANS Hassk. in Abhandl. Naturf. 

 Gesellsch. 19 (1866) 284 (Neue Schliissel (1866) 142) (type!). 

 Convolvulus laevis indicus major ill nigra Rumph. Herb. Amb. 5: 

 429. 



The variety proposed by Hasskarl is based solely on Rumphius, 

 and an exact interpretation of it must wait for a more intensive 

 botanical exploration of Amboina. It may prove to be Sticto- 

 cardia campanulata Merr. 



QUAMOCLIT Tournefort 



QUAMOCLIT PEN N ATA (Desr.) Bojer Hort. Maurit. (1837) 224. 



Ipomoea quamoclit Linn. Sp. PI. (1753) 159. 



Convolvulus pennatus Desr. in Lam. Encycl. 3 (1791) 567. 



Quamoclit vulgaris Choisy in Mem. Soc. Phys. Genev. 6 (1833) 434. 



Flos cardinalis Rumph. Herb. Amb. 5: 421, t. 155, f. 2. 

 Amboina, Soeli, Robinson PI. Rumph. Amb. h03, November 25, 1913, in 

 roadside thickets, altitude about 10 meters. 



The Rumphian figure is an excellent one, thus rendering the 

 accurate identification of his Flos cardinalis very definite. It 

 was first reduced by Linnaeus to his Ipomoea quamoclit, in 



