

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. 
—@—. 
ASCLEPIADEAI R. Brown. 
EssrntiaL Cuaracter.—Calyx five-cleft, permanent. Corolla 
monopetalous, hypogynous, five-lobed. Stamens five, alternating with 
the segments of the corolla. Filaments usually connected. Anthers | numerous, usually furnished with a tuft of hairs at the umbilicus. 
two-celled. Pollen at the bursting of the anthers coalescing into | Albumen twin. Embryo straight, with leafy cotyledons. 
| masses equal in number to the cells. Ovaria two. Styles two, close 
| together and having one stigma common to both. Follicles two. Seeds 
Descriprion, &c.—Many of the plants belonging to this order are climbers of great beauty, such as the Hoya 
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, 
which are probably not so well known as the rest. 
GENUS I. 
TWEEDIA Hook. THE TWEEDIA. 
Lin. Syst. PENTANDRIA DIGYNIA. 
of pollen ventricose, attenuated at the apex, where they are fixed, and 
Generic Cuaracter.—Calyx five-parted. Corolla campanulate ; 
pendulous. Stigma elongately acuminate, two-cleft. 
mouth crowned ; scales five, fleshy, retuse or bifid, exserted. Stamens 

combined into a tube. Anthers terminating ina 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 CHRULEA D. Don. THE BLUE-FLOWERED TWEEDIA. 
Encravines.—Bot. Mag., t. 3630; Sweet’s Brit. Flow. Gard., 2nd | Synonymr.—T. versicolor Hook. 
series, t. 407; Paxton’s Mag. of Bot., vol vi., p. 125; The Botanist, Speciric Cuaracter.—Stem climbing, tomentose. Leaves oppo- 
t. 55; and our jig. 5, in Pl. 39. site, cordate-oblong. 

Description, &c.—This is an exceedingly beautiful plant when properly grown, but when 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 prune 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 JZ. B. et Kunth, THE PHILIBERTIA. 
Lin. Syst. PENTANDRIA DIGYNIA. 
Generic Cuaracter.—Corolla urceolately rotate, sinuately five- | five-leaved; leaflets entire. Anthers terminated by a membrane ; 
lobed; lobes acute, intersected by as many teeth. Corona double ; | pollen-masses clavately cylindrical, fixed beneath their apexes, pendu- 
outer one ring-formed, in the bottom of the corolla, entire, fleshy, | lous. Stigma bi-apiculated. (@. Don.) 
undulated ; inner one inserted higher up with the tube of the filaments, 
Description, &c.—This is a small genus of South American plants, only one species of which has as yet been 
