-Hoya.] asclepiadejE. 229 



On rocks, especially on Mount Victoria, Champion. Also on the adjoining continent. 

 Not known for certain out of South China, but probably extending to Sikkim, as one spe- 

 cimen was found, without any indication of the precise station, among the Boyas of Br. 

 Hooker's collection fiom that conntry. 



Okdek LXXIT. LOGANIACEiE. 



Calyx 4- or o-lobed or -tootlied, or the 5 sepals free. CoroUa regular ; the 

 limb with 4 or 5 or rarely more lobes, valvate, contorted or otherwise imbricate 

 in the bud. Stamens as many as corolla-lobes, alternate with them, inserted in 

 the tube or very rarely reduced to 1. Ovary free, 2-celled or rarely 3- to 5- 

 celled, or very rarely incompletely divided, the dissepiments not reaching quite 

 to the centre. Style single, with an entire or lobed stig-matic summit. Ovules 

 1 or more in each cell of the ovary. Pruit a berry or capsule. Seeds albu- 

 minous. Embryo straight, often oblique, with leafy cotyledons.— Trees, 

 shnibs, climbers, or rarely herbs. Leaves opposite, usually connected by inter- 

 petiolar stipules, or at any rate by a raised line. 



A small Order, somewhat heterogeneous, and not very precisely defined, ranging over the 

 tropical regions of both the New and the Old World, with a few extratropical species,, either 

 from the southern hemisphere or from North America. 



Ovules several in each cell. 



Sepals 5, distinct. Corolla 5-lobed, imbricate. Fruit capsular. Seeds 



winged. Woody twiner T. Gelsemium. 



Calyx 4- or 5-lobed. 

 Corolla valvate. 



Slender erect annuals. Capsule 2-lohed at the top 2. Mitkasacme. 



Shrubs or climbers. Fruit a berry, with a hatd rind .... 4. Stktchnos. 



Corolla imbricate. Erect shrub 3. Buddleia. 



Ovules solitary in each cell. Erect shrub ... 5. GiESTNEKA. 



1. GELSEMIUM, Juss. 



Sepals 5, free, imbricate. CoroUa funnel-shaped or narrow-campanulate, 

 with 5 lobes, imbricate in the bud. Stamens 5. Ovaiy 2-celled, with several 

 ovules in each. Style bifid at the top, with notched or bifid lobes. Capsule 

 opening septicidaUy in 2 bifid valves, without leaving any central column. 

 Seeds numerous, suiTounded by an irregularly toothed membranous wing. — 

 Woody twiners. Leaves opposite, entire, without distinct stipules. Plowers 

 in axillary clusters or terminal trichotomous cymes. 



Besides the following, the genus comprises one other North American species. 



1. G. elegans, Benih. in Journ. Linn. Soc. i. 90. A perfectly glabrous 

 twiner. Leaves ovate or ovate-lanceolate, acuminate, 2 to 4 in. long, rounded 

 or narrowed at the base, on a petiole of 3 or 4 lines. Flowers pale yellow, 

 in dense terminal cymes. Bracts smaR and narrow, and only at the ramifica- 

 tions. Sepals about 1 line long, acute. Corolla 7 to 8 lines long, slightly 

 spotted with red inside ; the lobes ovate, acute, shorter than the tube. Stamens 

 exserted from the tube, but shorter than the lobes. Capsule somewhat in- 

 flated, ovoid, about 1^ in. long. — Medicia elegans, Qardn. in Kew Journ. Bot. 

 i. 325. Leptopteris sumatrana, Blume, Mus. Bot. i. 240, t. 34. 



Scarce in Hongkong, Champion; in a ravine ascending from West Point, miford ; also 



