long, thread-like processes proceeding from the petiole ; 

 processes that occupy the place of the petiolar glands so 

 common in the genus, and analogous to the ciliae found 

 upon the leaf-stalk of some Apocyneous plants. The fruit 

 of P. ligularis is said to be eatable, and the size of an 

 orange ; that of P. quadrangularis is frequently three times 

 as large. 



Hitherto this has been described as a native of Peru : 

 it would, however, seem from the Garden name, P. mexi- 

 cana, under which it was purchased from Mr. Knight, of 

 the King's Road, by Mr. Gordon, of Hafheld, near Ledbury, 

 to be perhaps spread northwards over a large extent of 

 country. The specimens from which the accompanying 

 drawing was taken were obligingly communicated in 

 February by Mr. Gordon, who informs us that the plant 

 grows luxuriantly in the front border of a Conservatory for 

 tropical plants heated by hot water. 



A leaf of this species is represented by M. Decandolle 

 in his Organographie, t. 39. f. 5. to illustrate a transforma- 



tion of glands into tendrils. 



J. L. 



