284 



RUMPHIUS'S HERBARIUM AMBOINENSE 



differs from typical P. calcaratus in its more scandent habit 

 and in its smaller seeds. 



VIGNA Savi 



VIGNA SINENSIS (Linn.) EndL ex Hassk. PI. Jav. Rar. (1848) 386. 



Dolichos sinensis Linn. Cent. PI. 2 (1756) 28, Amoen. Acad. 4 (1759) 



132, 326 (type!). 

 Dolichos sinensis Rumph. Herb. Amb. 5 : 375, t. 1SU. 



This cultivated species is not represented in our Amboina col- 

 lections, but the identity of Dolichos sinensis is unmistakable 

 from Rumphius's figure and description. It is the commonly 

 cultivated bean in southern China and the Indo-Malayan region 

 with very long pods, indicated by Rumphius as "ulnam circiter 

 longae." It is known in the Philippines as sitao, a name of 

 Chinese origin, corresponding to the Chinese name tsjaitau quoted 

 by Rumphius. Dolichos sinensis Rumph. is the whole basis 

 of Dolichos sinensis Linn. Linnaeus took his name and brief 

 description from Rumphius. I have not seen the original 

 edition of the Centuria Plantarum 2 (1756), but in the reprint, 

 Amoen. Acad. 4 (1759) 326, and in the reprint of Stickman's 

 Herbarium Amboinense, 1. c. 132, the Rumphian reference is 

 the whole basis of the species as proposed by Linnaeus. All 

 early authors follow Linnaeus in quoting the Rumphian figure 

 under Dolichos sinensis Linn., but some of the more recent ones, 

 Hasskarl and Miquel, quote it under Vigna sinensis where it 

 properly belongs. Vigna sinensis (Linn.) Endl., however, has 

 not always been correctly interpreted by recent authors, but 

 strictly must be limited to the form of the cow pea with the 

 very long pods. 



VIGNA CYLINDRICA (Linn.) comb. nov. 



Phaseolus cylindricus Linn. Amoen. Acad. 4 (1759) 132 (type!). 

 Dolichos catjang Linn. Mant. 2 (1771) 269. 

 Phaseolus unguiculatus auctt., non Dolichos unguiculatus Linn. 

 Phaseolus minor Rumph. Herb. Amb. 5: 383, t. 139, f. 1. 



This cultivated bean is not represented in our Amboina col- 

 lections. The Rumphian figure and description of Phaseolus 

 minor are the whole basis of Phaseolus cylindricus Linn. (1759), 

 a name that has been overlooked by all subsequent authors, 

 and which is not listed in Index Kewensis. It antedates 

 Dolichos catjang Linn, and supplies the earliest valid specific 

 name for the common cow pea. This form, with the short pods, 

 by some authors has been considered either as identical with 

 Vigna sinensis (Linn.) Endl. or as a variety of it. Modern 



