Plate 2577. 



HEVEA DISCOLOR, Muell Arg. et H. species indeterminata. 



EUPHORBIACEJE. 



The figures on this plate are from two unpublished engravings, 

 numbered respectively 10 and 11, in the Herbarium of the British 

 Museum, copied by permission of the Keeper for the use of Kew. 

 Neither artist's nor engraver's name appears on the engravings, and 

 no clue to their origin has been discovered. Even the handwriting, 

 evidently that of a foreigner, has not been identified. Figures 1-3 are 

 from the engraving numbered 10, and have been reproduced on account 

 of their abnormal character. It is impossible to say to what species they 

 belong, or whether they belong to more than one species. Probably 

 to more than one, as figures 2 and 3 represent the extremes met with 

 in the structure of the andrcecium of different species. In the very 

 numerous flowers dissected by Miss Smith and myself, we found the 

 andrcecium very uniform (see Plates 2573 and 2574). Figures 4-7 

 from the engraving numbered 11 are almost certainly of H. discolor , 

 Muell. Arg. This differs from all the others of which I have seen fruit 

 in having a pointed capsule and longer seeds. An unpublished name 

 appears on the sheet, and the words " folia glabra in aliis sp. pubentia." 

 In this character H. discolor differs from several of the other species of 

 the genus. — W. "Dotting Hemsley. 



Fig. 1, a pistil and adventitious stamens; and 2 and 3, androecia, of anunknown species 

 of Ilevra. Fig. 4, entire capsule ; o, two separate carpels of the same ; 6, fully dehisced 

 carpel; and 7, a seed, of H. discolor, Muell. Arg. Figures 1-3 enlarged; 4-7, 

 natural size. 



