The genus as it stands at present TP 3 species, all from Siam, 
viz. P. mirabile, Hemsl., P. rosewm, an lbum, Craib et Hutchinson. 
In — und Prantl’s Natiirliche Pisnsentaseen, Nachtr., vol. ii. 
e genus is not maintained but is reduced to a section of 
Past uihan —W. G. Crars. 
Fig. 1, & flower ; 2, 3 flower yon ‘ge of calyx removed, ergs the peaicid 
disk glands and eiishece cium ; 3, , back view ; 4, 2 flowers with pedicels 
5, @ flower; 6, pistil ; = transy verse eset on of ovary; 8, lon: Gian section of 
ovary; 9, fruit ; + 10,86 % tonatenitnal section Fat see 
seed 
cut tr ransversely ; ; 14 see 15, prerstiokg All enlarged except 4, 9, and 10, ‘heh i are 
of natural siz 
