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FLORICULTURAL NOTICES. 
THE BEGONIA TRIBE (Begoniaceas). 
Tourrettia lappacea. Bur-fruited Tourrettia. There is much more to 
engage the attention of the botanist than of the cultivator of flowers in this curious 
plant, as it is an isolated species, and possesses very little beauty. It is a climbing 
plant, with slender, succulent, square stems, which support themselves by the 
tendrils of the leaves, these latter being thrice pinnate. The flowers appear in 
erect spikes, are small, red, and much resemble those of some leguminous plants. 
M. Dombey originally found it in Peru, and sent it, many years since, to the Paris 
Royal Garden. It was recently furnished to the Glasgow Botanic Garden by John 
M'Lean, Esq., of Lima ; and flowers in the greenhouse during the autumnal months. 
Being an annual, the approach of winter invariably destroys it. Bot. Mag. 3749. 
CLASS II. — PLANTS WITH ONE COTYLEDON (MONOCOTYLEDONEjE). 
THE ORCHIS TRIBE (Orchidacece). 
OncIdium concolor. One-coloured Oncidium. Sir W. J. Hooker expresses some 
doubt with regard to the genus to which this plant should be assigned, Miltonia^ 
CyrtocMlum, and Odontoglossum, being so nearly related to Oncidium. It is a very 
handsome plant, has small furrowed pseudo-bulbs, encased in large brown scales, 
an erect, slender flower-spike, and fine yellow flowers. It is sufficiently distin- 
guished from all other Oncidiums by the pure and entirely yellow colour of its 
blossoms, in which the large labellum is a prominent object. Mr. Gardner disco- 
vered this plant on the Organ Mountains of Brazil, in 1837 ; and plants consigned 
by him to the Woburn collection have since bloomed. Bot. Mag. 3752. 
Odontoglossum Rossi i. Mr. Ross's Odontoglossum. Mr. Ross, the botanical 
collector of George Barker, Esq. of Birmingham, introduced this charming plant from 
Mexico, and after him it has been named. With diminutive pseudo-bulbs, which 
appear to be smooth in the early stages of their growth, but become channelled 
when old, it has solitary and strongly-nerved foliage, and produces its blossoms on 
erect racemes, each of which usually bears two flowers, one situated about an inch 
below the other. The sepals are greenish-yellow, blotched with brown ; the petals 
white, with purple spots at their base ; and the labellum pure white. Altogether, it is 
a most beautiful species, and must be greatly valued by the cultivator. Bot. Reg. 48. 
Coryanthes macula ta ; var. Paekeri. The only character by which this 
variety is distinguishable from the original species, is the dark brownish purple 
colour with which the base of the labellum is tinctured, and, as Sir W. J. Hooker 
believes, the smaller size of the spots on the other portion of it. C. S. Parker, Esq. 
imported from Demerara the specimen figured. The colour of the labellum would 
greatly resemble that of C. macrantha, were it not deeply tinged with a dingy 
brown, which renders it far less rich. These plants thrive well on a block of wood, 
and to this treatment their natural habits seem to adapt them ; but they will also 
flourish in a pot, filled with heath-soil, and potsherdy, or broken stones. 
Bot. Mag. 37 J 7- 
