2 
Engl. & Prantl, Nat. Pflanzenfam. vol. iv. pars 2, p. 144 ; Hochreutiner 
in Ann. Cons. et Inst. Bot. Genéve, 1908, pp. 87, 88, fig. 7; Jum. et 
Perr. in Ann. Mus. Col. Marseille, ser. 2, vol. vi. pp. 35-42, pro parte 
saltem ; a P. elastica, Jum. et Perr., differt glabritie, foliis obtusiusculis 
vel saepius obtuse acuminatis, magis coriaceis exsiccando fuscescentibus, 
sepalis coriaceis obtusis praeter ciliola glabris, corolla paulo longiore. 
Frutex scandens, ramulis tenuibus ut tota planta glabris cortice 
corymbosae, 2-5-8 
1-5 cm. longo suffultae ; bracteae ovatae, acutae, minutae ; pedicelli 
tenues, 1-3 mm. longae. Sepala ovata, obtusiuscula, 0-75 mm. longa, 
albo-ciliolata, caeterum glabra. Corolla extra praeter basin papillis albis 
farinosa ; tubus 2-5-3 mm. longus, ad medium constrictus et intus 
inter semina paululo constricta, 15 cm. vel ultra longi, 5 mm. lati, 
dorso sulcati. Semina ad 2 cm. longa, alis ad 8 mm. longis 2-5 mm. 
a 
Mapacascar: without precise locality, Petit Thouars; District 
of Vatomandry, Guillot, 45; Boina, Analamahitso and Firingalava, 
Herb. Perrier de la Bathie. 
In the case of P. Thouarsii, there are at Kew two sheets of 
fruiting specimens, collected by the Rev. R. Baron in ‘ Central 
Madagascar,’ which the writer has no hesitation in referring to 
the species as defined by Roemer and Schultes. The follicles of 
Baron’s specimens are 20-23 em, long and about 7 mm. wide, and 
