COMPOSITAE 



501 



Amboina, Caju poeti, Robinson PL Rumph. Amb. 419, August 2, 1913, 

 borders of light forests, ascending to an altitude of about 400 meters. 



Miquel, Fl. Ind. Bat. 2 (1857) 73, suggests that Seruneum 

 aquatile is nearly allied to Wollastonia strigulosa DC; while 

 Hasskarl, Neue Schlussel (1866) 142, places it under Wedelia 

 scaberrima DC. I cannot see why the Amboina plant, which 

 certainly represents Seruneum aquatile, should not be referred 

 to the common and widely distributed Wedelia biflora (Linn.) 

 DC. The forms mentioned by Rumphius, 1. c. 423, 426, as / al- 

 bum, II rubrum, and 77/ album lanuginosum are all apparently 

 referable to Wedelia and may be forms of Wedelia biflora DC. 



SPILANTHES Jacquin 



SPILANTHES ACM ELLA (Linn.) Murr. Syst. (1774) 610. 



Verbesina acmella Linn. Sp. PI. (1753) 901. 



ABCdaria Rumph. Herb. Amb. 6: 145, t. 65. 

 Amboina, Robinson PI. Rumph. Amb. 418, August 20, 1913, in a sago 

 swamp near the town of Amboina. 



This common and widely distributed species was unquestion- 

 ably correctly reduced by Linnaeus, in Stickman Herb. Amb. 

 (1754) 28, Amoen. Acad. 4 (1759) 135, Sp. PL ed. 2 (1763) 

 1271, to Verbesina acmella Linn. = Spilanthes acmella Murr. 

 Through error it is cited as a synonym of Hedysarum gangeticum 

 Linn. (= Desmodium gangeticum DC.) by Linnaeus in his 

 Systema ed. 10 (1759) 1169. Other names involved, to which 

 ABCdaria has been reduced, are Bidens acmella Lam., Spilan- 

 thes pseudo-acmella Murr., and Spilanthus tinctorius Lour. ; the 

 first two being proper synonyms of Spilanthes acmella Murr., 

 the latter supposed to be Adenostemma viscosum Forst., with 

 which ABCdaria of Rumphius has little in common. 



BIDENS Linnaeus \ 



BIDENS CHINENSIS Willd. Sp. PI. 3 (1804) 1719. 



Bidens pilosa Linn. var. chinensis Linn. Mant. 3 (1771) 281? 

 Agrimonia molucca Rumph. Herb. Amb. 6: 38, t. 15, f. 2. 

 Amboina, Batoe merah, Robinson PI. Rumph. Amb. 424, July 30, 1913, in 

 rocky soil, altitude about 10 meters. 



Linnaeus originally reduced Agrimonia molucca Rumph. to 

 Bidens bipinnata Linn., in Stickman Herb. Amb. (1754) 26, 

 Amoen Acad. 4 (1759) 134, where it certainly does not belong. 

 Loureiro, Fl. Cochinch. (1790) 488, transferred it to Bidens 

 pilosa Linn., a species closely allied to B. chinensis Willd., and 

 one to which Willdenow's species has very generally been reduced 

 by most authors. Willdenow cites Agrimonia molucca in the 



