216 



RUMPHIUS'S HERBARIUM AMBOINENSE 



tion was first made by Linnaeus, in Stickman Herb. Amb. (1754) 

 21, Amoen. Acad. 4 (1759) 130, Sp. PL ed. 2 (1762) 252. Seven 

 color forms are included by Rumphius ; Hasskarl, Neue Schlussel 

 (1866) 117, refers one of these to Mirabilis dichotoma Linn, 

 and the others to several varieties of Mirabilis jalapa Linn. 



PI SON I A Plumier 



PI SON I A ALBA Spanoghe in Linnaea 15 (1841) 342. 

 Olus album Rumph. Herb. Amb. 1: 191, t. 78. 



This commonly cultivated tree is not represented in our Am- 

 boina collections. The reduction was apparently first suggested 

 by Spanoghe in the original publication of Pisonia alba (not seen 

 by me) ; repeated by Choisy, in DC. Prodr. 13 2 (1849) 446, as 

 a doubtful synonym ; by Hasskarl referred with doubt to Pisonia 

 morindae folia R. Br.; and in Retzia, 1 (1855) 6, as apparently 

 representing Pisonia sylvestris Teysm. & Binn. The plant de- 

 scribed by Rumphius is unmistakably the common and widely 

 cultivated Malayan form with very pale-green or sometimes 

 yellowish-white leaves and is typical Pisonia alba Spanoghe. 

 Whether or not Pisonia alba Spanoghe is specifically distinct 

 from P. sylvestris Teysm. & Binn. is uncertain, but the proba- 

 bilities are that it is a derived form of P. sylvestris or of a 

 closely allied species, which, through long cultivation, rarely 

 produces flowers or fruits. In the Philippines it is generally 

 known as coles moluco, certainly indicating that it was intro- 

 duced into the Archipelago from the Moluccas. 



PISONIA GRAN DIS R. Br. Prodr. (1810) 422. 



Olus album insulare Rumph. Herb. Amb. 1: 190, t. 79, f. 1 (excl. 

 fig. A, et descr. fruct.). 



No Pisonia, other than the very characteristic P. cauliflora 

 Scheff., is represented in our Amboina collections, but the 

 description given by Rumphius, excluding that of the fruit, is 

 unmistakably applicable to the very large Pisonia that is fre- 

 quently gregarious on small uninhabited islands in the Malayan 

 and Polynesian regions, especially those frequented by birds, 

 which has been described as Pisonia grandis R. Br. Hasskarl, 

 Neue Schlussel (1866) 24, suggests that it may be Pisonia 

 sylvestris Teysm. & Binn. which Heimerl considers to be a syn- 

 onym of Pisonia grandis R. Br. 



PISONIA ACULEATA Linn. Sp. PI. (1753) 1026. 



Limonellus funicularis montanus Rumph. Herb. Amb. 5: 25. 



This reduction follows Hasskarl's suggestion, Neue Schlussel 

 (1866) 91, the only objection being that the leaves, as described 



