ceived from Africa or the East Indies; its native country is therefore 
for the present unknown. It is, however, a most acceptable addition 
to our stove plants, as it produces its rich and elegantly formed blos- 
soms in winter, and partially through the year. 
The genera Ipomexa and Convolvulus are so similar, that many 
unite them into one, but the best botanists keep them separate. In 
Convolvulus the calyx sometimes has two small bracts, in Ipomea it 
is always naked; in Convolvulus the stamens are shorter than the 
limb of the corolla: ovary is two-, seldom three-celled ; and the stig- 
mata are two, filiform, not capitate. This species bears some resem- 
blance to the Ipomza paniculata of Brown, but is distinguished by its 
quinately compound leaves; while those of paniculata are simply lobed. 
_ The roots of many species of Convolvulus contain a resin which 
renders them useful in medicine ; and even the Convolvulus arvensis, 
and the more showy Calystegia sepium, or Hedge-convolvulus, may 
be employed in the same way as the exotic species. The Ipomea 
sensitiva displays great irritability of its corolla; and even the more 
common sorts exhibit much irritability, and contract when touched. 
The flowers remain expanded for a very short time; their beauty and 
perishable nature have “ pointed the moral” in the following lines. 
“ How well the young and fair are here shown forth ! 
Above all other wealth E’en like this flower, 
The gay Convolvulus, eads her form 
f fragile short-liv’d loveliness befor 
The flatte beams e decei 
her in his light, and 2% poor bud 
oe oe Megs Se uch will las 
oon the noon-ti tide eee falls iocickingly 
Up. aning charms—she hangs her head— 
Her boasted beauty shrivels and decays, 
And outward show, her only gift, is gone !” Miss TwaMtey. 
rico CTION; WHERE GROWN; CuLTURE. Our drawing was 
made from a specimen grown in the ‘ative of John Willmore, Esq. of 
Oldford, Staffordshire. Mr. Williams, his gardener, has obligingly 
informed us, that by taking young cuttings of this plant with a slice 
of the old wood, accompanied bya perfect leaf, they strike root imme- 
diately when placed in a hotbed, in sand, under a bell-glass. Mr. 
Williams’s method has surmounted all difficulty in its propagation. 
DERIVATION OF THE NAMEs. 
PoM#A, from I7og, 1Pos, ie Convolvulus ; and Opotoc, prasad similar; from 
its ‘avaiaceaa to the Convolvulus. Horsratxra, so called by Sir W. J. Hooker, 
as a well-merited acknowledgment of the services rendered to botany by Mrs. 
Horsfall. 
SyNonyMeEs. 
Tromza Horsratuia. Botanical Magazine, 3315. 
