488 



RUMPHIUS'S HERBARIUM AMBOINENSE 



basis of Ixora fulgens Roxb. as originally published in the Hortus 

 Bengalensis (1814) 10, * while the species that Roxburgh later 

 described under this name, Fl. Ind. 1 (1820) 387, is probably 

 the same as the plant here referred to Ixora fulgens Roxb. The 

 specimens on which the description was based were grown in the 

 botanic garden at Calcutta, introduced from the Moluccas, and 

 under it Roxburgh cites "Flamma silvarum Rumph. Amb. IV. 

 105. t. 46? pretty good." It has also been cited under Ixora 

 longiflora Sm., Pavetta longiflora Sm., and by Miquel under 

 Pavetta amboinica Blume. I strongly suspect that the last is 

 a synonym of Ixora fulgens Roxb., but not having access to the 

 original publications, I am unable to settle the status of Ixora 

 longiflora Sm. (Pavetta longiflora Sm.) in connection with Ixora 

 fulgens Roxb. Ixora macrothyrsa Teysm. & Binn. should be 

 critically compared. 



PSYCHOTRIA Linnaeus 



PSYCHOTRIA sp. 



Caju panu Rumph. Herb. Amb. 7: 12, t. 6, f. 2. 



The figure represents a rather characteristic species of Psycho- 

 tria, and the description of the seeds confirms this generic 

 identification of Caju panu. Teysmann, quoted by Hasskarl, 

 Neue Schlussel (1866) 186, placed it in Psychotria. It is not 

 represented in our Amboina collections, and further identifica- 

 tion of it is impossible at this time. The only species of the 

 genus known from Amboinia is Psychotria leptothyrsa Miq. (Rel. 

 Robins. 1736, 1749, det. Valeton), but Caju panu cannot be re- 

 ferred to Miquel's species. 



HYDNOPHYTUM Jack 

 HYDNOPHYTUM AMBOINENSE Becc. Malesia 2 (1885) 138, 32, f. 1-7. 

 Nidus germinans formicarium niger Rumph. Herb. Amb. 6: 119, 



t. 55, /. 1. 



Amboina, Wakeroe, Robinson PL Rumph. Amb. 16k, October 7, 1913, on 

 trees in a mangrove swamp. 



In the original description of Hydnophytum formicarium Jack 

 the Rumphian species was reduced as a synonym, but Jack's 

 species is entirely distinct from the Amboina form. Miquel, 

 Fl. Ind. Bat. 2 (1857) 309, placed it under Hydnophytum monta- 

 num Blume, which Beccari considers as a form or variety of 

 H. formicarium Jack. Hydnophytum amboinense Becc. was de- 

 scribed from Amboina specimens and is certainly the form that 

 Rumphius described as Nidus germinans formicarium niger, 

 which Beccari reduced to Hydnophytum amboinense Becc. 



* See C. B. Robinson in Philip. Journ. Sci. 7 (1912) Bot. 413. 



