NEW AND RARE PLANTS. 
Tkop-SOlum Deckerianum, Moritz. M. Decker's 
Indian Cress. {Karsten's Answahl Gewachse Vene- 
ziielas, t. 12.) — Nat. Ord., TropseolaceEe § Tropse- 
olese. — A climbing cool stove or greenhouse peren- 
nial, of free growth, remarkable for the singular 
intermixture of colour in the flowers. The plant is 
fibrous-rooted, with somewhat compressed, downy, 
climbing and rooting stems, bearing peltate tri- 
angular-ovate leaves, Tvith the margins siuuated, 
and attached by hairy petioles. Tbe flowers grow 
from the axils on long spirally-tnisted peduncles ; 
the calyi is hairy, green, and lengthened behind 
into a straight spur two inches long, which is red, 
tipped with gi'een ; the corolla consists of five 
unequal wedge-shaped, deeply-toothed, intensely 
blue petals, within which stand the stamens bear- 
ing blue anthers. The jjlant is said to be less 
ornamental than the foreign figures represent it to 
be ; but probably like all the other free growing 
Tropaeolmns, it requires starving rather than feed- 
ing in order to develope its beauty. It is said to grow out of doors in 
summer. — From Venezuela; introduced in 1849, Flowers in summer. 
Messrs. Henderson, St. John's Wood. 
DiPLADENiA ATROPURPTJiiEA, De Catidolk. Dark purple Echites. {Pax- 
ion's Mag. Hot., is. 199.) — Nat. Ord., Apocynaceae J Wrightea;. — Syn., 
Echites ati'opurpm'eus, Lindley. — A very handsome stove climber, of slender 
growth, with opposite leaves of an elliptic form, and blossoms growing 
two or more together on the long axillary peduncles. The tube of the 
flowers is nearly two inches in length, expanding about half way fi-om 
the base, into a wide throat, with a spreading Hmb an inch and a half 
across ; the colour is a dark duU brownish purple, and the flowers in the 
earlier stages of their development have a pleasant odour. — From Brazil ; 
introduced in 1841. Flowers in summer. Messrs. Veitch of Exeter. 
ONcroiTTM coSYMBEPHOEUM, Morreii. Eosette Oncid. (Ann. de Gand, 
v., 275.) — Nat. Ord., Orchidacese § Vandea3-Brassid£e. — A pretty stove 
epiphyte, with broadly oblong acute rigid leaves, attenuated below, and 
springing from the base of the plant. The flower scapes also issue from 
the base of the plant, and bear a many-flowered panicle ; the sepals and 
petals are conformable, ovate, obtuse, undulated ; the lip with short unci- 
nate lateral lobes, the intermediate lobe emarginate, plain and entire, with 
a rosette-like crest of tubercles at its base. The flowers are prettily 
coloured ; the sepals and petals bright rose, spotted with crimson purple, 
and tipped with yeUow ; the lip cinnamon brown ; the tubercular callosities 
at its base yellow and purple. — Native country not known : inti'oduced 
to Belgian gardens about 1848. Flowers in August. 
1. I'rojJO'oUiDi Bcckcrianum. 
'2. JDipladenia atropurpurea. 
3. Oncidiuiil cosymhepliorum. 
