192 
THE LADIES’ FLOWER-GARDEN 
desirable. In some places where the species is planted in the free ground in a conservatory, the branches become 
most exceedingly ornamental. Like the others this plant is a native of Australia, whence it was introduced 
in 1829. 
CHAPTER XLIII. 
ASCLEPIADE^ B. Brown. 
Essential Character. — Calyx five-cleft, permanent. Corolla 
monopetalous, hypogynous, five-lobed. Stamens five, alternating witli 
the segments of the corolla. Filaments usually connected. Anthers 
two-celled. Pollen at the bursting of the anthers coalescing into 
masses equal in number to the cells. Ovaria two. Styles two, close 
together and having one stigma common to both. Follicles two. Seeds 
numerous, usually furnished with a tuft of hairs at the umbilicus. 
Albumen twin. Embryo straight, with leafy cotyledons. 
Description, &c. — Many of the plants belonging to this order are climbers of great beauty, such as the Hoija 
carnosa, so well known for its fleshy leaves and for its umbels of beautiful wax-like odoriferous flowers distilling 
honey. There are many other beautiful and curious plants belonging to the order, but I have only room for two, 
w’hich are probably not so w’ell known as the rest. 
GENUS I. 
TWEEDIA Hook. THE TWEEDIA. 
Lin. Syst. PENTANDRIA DIGYNIA. 
Generic Character. — Calyx five-parted. Corolla campanulate ; of pollen ventricose, attenuated at the apex, where they are fixed, and 
mouth erowned ; scales five, fleshy, retuse or bifid, exserted. Stamens pendulous. Stigma elongately acuminate, two-cleft, 
combined into a tube. Anthers terminating in a membrane. Masses 
Description, &c. — This genus was named by Sir W. J. Hooker in honour of Mr. Tweedie, a collector of plants 
in South America, and who discovered it and sent it home. 
1.— TWEEDIA CAIRULEA B. Bon. 
Engravings. — Bot. Mag., t. 3630 ; Sweet’s Brit. Flow. Gard., 2nd 
series, t. 407 ; Paxton’s Mag. of Bot., vol vi., p. 125; The Botanist, 
t. 55; and om Jig. 5, in PI. 39. 
THE BLUE-FLOI¥ERED TWEEDIA. 
Synonyme. — T. versieolor Hook. 
Specific Character. — Stem climbing, tomentose. Leaves oppo- 
site, eordate-oblong. 
Description, &c. — This is an exceedingly beautiful plant when properly grown, but wdien it is kept too warm, 
it becomes weak and the flowers turn of a pale bluish grey. The best way of growing it is to keep it in a green- 
house till the latter end of May or the beginning of June, and to pmne it and remove it to a greenhouse in autumn. 
Thus treated, it appears perfectly herbaceous, but when kept under glass all the year it becomes shrubby. It was 
discovered by Mr. Tweedie in the neighbourhood of Buenos Ayres, and introduced by him into this country in 1836. 
GENUS II. 
PHILIBERTIA H. B. et Kunth. THE PHILIBERTIA. 
Un. Syst. PENTANDRIA DIGYNIA. 
Generic Character. — Corolla urceolately rotate, sinuately five- 
lobed ; lobes acute, intersected by as many teeth. Corona double ; 
outer one ring-formed, in the bottom of the corolla, entire, fleshy, 
undulated ; inner one inserted higher up with the tube of the filaments, 
five-leaved ; leaflets entire. Anthers terminated by a membrane ; 
pollen-masses clavately cylindrical, fixed beneath their apexes, pendu- 
lous. Stigma bi-apiculated. {O. Don.) 
Description, &c. — This is a small genus of South American plants, only one species of which has as yet been 
