P. Gilliesii, a species from Mendoza, not yet that we know 
of in cultivation, is a much smaller plant, either smooth, or 
with an exceedingly short close down, and with the base of 
the leaves almost truncated, instead of being deeply heart- 
shaped. 
The accompanying drawing was made in the Nursery of 
Messrs. Rollissons, in August 1838. The same individual 
had flowers of different colours, all however sweet-scented. 
A pretty slender greenhouse creeper, well adapted for 
training up the rafters of the greenhouse, or over ornamental 
trellis-work affixed to a pot. 
This, like most other plants belonging to the order Ascle- 
piadacese, succeeds best when cultivated in friable loam and 
sand ; and if the loam is rather poor, a little leaf-mould may 
be added. The soil when used should not be sifted, but 
merely broken fine and mixed with the hand. The pots 
should be well drained, as the plant requires to be kept nearly 
dry during the season of rest. 
When the plants begin to grow in the spring, they should 
be fresh potted and cut back to the previous growth ; being 
afterwards placed in a gentle bottom heat for a few weeks, 
and having the supply of water increased. During the whole 
period of their progress, they should be kept in a rather moist 
atmosphere, as they are subject to the attacks of the red spider. 
This plant is easily increased by cuttings treated in the 
ordinary way, and it flowers freely during the summer and 
autumn. 
When it has done flowering, it should be allowed to rest, 
by gradually withholding water until the soil in the pots be- 
comes tolerably dry. The pots should then be kept in the 
warmest and driest part of the greenhouse during the winter. 
