144 
KOYAL HORTICULTUBAL SOCIEIT. 
Verein, ii., t. 16; Bot. Reg., xix., t. 1633; Bot. Mag., 
t. 3503 ; Paxt. Mag., i., 25 ; xiv., 151. 
? P. dentata, Veil., Plor. Tlum., ix., t. 94. 
South Brazil. 
Section III. — Bracts free, leafy ; flower-tube short, fleshy : 
membranous corona plicate as in § Plectostemma ; habit of § 
Granadilla, 
75. P. Hahnii, Mast., in Flor. Brasil., I.e., 569. 
Distemma Hahnii^ Fournier in Revue Horticole, 1869 ; 430 c, 
tab. color. 
Mexico. 
I saw this species in flower at the Jardin des Plantes, Paris, in 
1870, and was furnished by M. Decaisne with cuttings, 
which were transmitted to Kew. It is one of the most 
singular species, and of considerable beauty. 
76. P. pulchella, H.B.K., N.G. et Sp. ii., 134 ; Mast, in 
Plor. Brasil., I.e. 570. 
P. rotundifolia^ Jacq., Obs., part ii. (1767); not of Linn, or 
of Swarz. 
P, divaricata, Griseb., Bonplandia (1858), p. 7. 
P. rotundifolia (3 Jacquinii^ DC, Prod, iii., 328. 
Central America, Venezuela, &c. 
In addition to the preceding species, whose botanical 
history is more or less well known, there are several other 
forms named in gardens and garden- catalogues, some of 
which are probably selected seedling varieties, of well- 
known species, while others are known to be of hybrid 
origin. I give a list of these names, but without accepting 
any responsibility as to their correctness : — 
P. aculeata, Hort. 
I have no idea what this is. . 
P. albicans, Hort. 
This is probably a misprint for P. albida, Ker. 
X P. albo-nigra, Regel. Gart. Flora (1852), t. 8. 
Said to be a cross between P. alata and P. Raddiana. 
X P. amabilis, Hort. ? 
This is said to be a hybrid between P. racemosa as the 
5 and P, alata $ . I have not seen it, unless it be the 
