21 
IPOM/EÂ longifolia. 
Long-leaved Ipomea. 
PENTANDRIA MONOGYNIA. 
Nat. ord. CONVOLVULACEZE. 
IPOMAA. Botanical Register, vol. 1. fol. 9. 
I. longifolia ; caule prostrato angulato glabro, foliis breviter petiolatis oblongo- 
lanceolatis obtusis mucronulatis crassiusculis glabris, pedicellis unifloris 
folio subsequilongis supra medium articulatis minutê bibracteolatis, se- 
palis ellipticis obtusis glabris. Bentham plant. Hartweg. p. 16. no. 97. 
A truly beautiful plamt, introduced by the Horticultural 
Society from Mexico, where Mr. Hartweg found it in the 
pastures about Leon, called Quebra platos. It has been ex- 
tremely well characterized by Mr. Bentham in his very useful 
Plante Hartwegiane. 
The large and semitransparent flowers diffuse a delicious 
perfume, resembling noyeau. 
It is a half-hardy perennial, with a long spindle-shaped 
root and a stem from four to five feet long, without any side 
branches ; unless supported by some other plants or tied up 
to a stick it would probably become nearly prostrate. 
The time of flowering is from July to September; each 
flower opening in the morning and lasting all day, if not ex- 
posed to the mid-day sun, and each stem producing a fresh 
flower nearly every day. Being very fragrant it is well worth 
placing in the sitting-room during the blooming season, 
especially as the plant, when in flower, seems to require 
shade. 
It appears difficult to increase except by seeds, which 
probably will be produced freely when the plants become 
older ; but it may be multiplied by the young shoots, which 
spring from the crown of the root, when about two or three 
inches long ; and as each root produces three or four shoots 
