FLORICULTURAL NOTICES. 
115 
the back of the others. This is effected by iron plates, similar to the dampers used in smoke flues. 
The tank is covered with slate an inch thick, and the floor of the gutter-heated pits is constructed 
of wood, pierced with numerous holes about an inch in diameter. The chief advantage of the com- 
bination of these systems of heating, consists in obtaining a different temperature in two pits from 
the same boiler, as the greater heating surface of the tank will always maintain the first pit at the 
highest temperature. And by only permitting the water to circulate through the gutters of the 
third pit during frosty weather, or during excessive damps, the three pits may be rendered equiva- 
lent to a stove, a greenhouse, and an intermediate house. 
FLORICULTURAL NOTICES. 
NEW OR BEAUTIFUL PLANTS FIGURED IN THE LEADING BOTANICAL PERIODICALS. 
Be'rbbkis tenui'folia, a rare Mexican species sent by Mr. Hartweg to the Horticultural 
Society, and found by him on the eastern declivity of Orizaba, at an elevation of 3000 feet above 
the sea, where it grows on the outskirts of the forests, and frequently attains the height of ten 
feet. " Considering the warm climate of which it is a native, it was expected to prove tender, 
and the event has proved it to be so ; for we have no species yet in our gardens so impatient of 
cold. In fact, it must be regarded strictly as a greenhouse plant to which any amount of frost 
would be fatal. It is a hard-v/ooded, graceful plant, very apt to run up with a single stem without 
producing lateral buds." The flowers are agreeably fragrant, and are borne towards the close of 
the year, from October to Dec. Bot. Reg. 26. 
Bolbophy'llum calama'ria. " An exceedingly curious epiphyte belonging to the genus Bol- 
bopliylliim, as now defined ; but Professor Lindley contemplates constituting a new genus of this 
and some others." It was received by John Gray, Esq., of Greenock, from Sierra Leone, " and 
though not a very shov/y plant, the beautiful structure of the flowers, and the rich blood-coloured 
tuft of hair on the elongated lip, entitle it to a place in every tropical orchidaceous collection." 
The flowers are arranged in a crowded spike, at the end of a scape afoot long. Bot. Mag. 4088. 
Cattle^ya interme'dia variegata. The sporting character of the species of many Orchidaceous 
genera is especially exhibited amongst Cattleyas. " The present one has the elongated pseudo- 
bulb, the narrow leaves, and the lamellated labellum of C. intermedia ; but the sepals and petals 
are much broader, the middle lobe of the lip is white, and the lamella red. It was sent from 
Brazil, by Mr. Gardner, and flowered in the stove of the Royal Botanic Gardens of Kew, in 
May, 1843." Bot. Mag. 4085. 
Ce^reus Pitaja^ya. This has been long cultivated in the Royal Botanic Gardens of Kew, under 
the name here retained, and is a very handsome species, growing erect, bearing very large showy 
flowers, (white or cream-coloured,) and with stems ©f a singularly glaucous green tint. There is 
much difficulty in determining the synonyms of this Cereus. Pfeiffer appears to have changed 
the old specific name conferred by Jacquin, solely on account of the variable character and he 
has included under it two figures of Plumiere, which appear extremely different in habit from 
this plant, and from each other, and he refers the Cereus undulosus of De Candolle hither, which 
is described as having spines two inches long ; while on the other hand, lie keeps the C. obtusus 
of Haworth distinct, which seems too nearly allied to the present." " Our plant is described as an 
inhabitant of Carthagena ; but Pfeiffer adds Mexico, Peru, Brazil, and the West Indies. Its 
noble flowers are produced with us in July, generally expanding towards evening, and fading in 
the morning of the following day." Bot. Mag. 4084. 
Cymbi'dium pe'ndulum var. brevila^bre. " As far as our experience goes, the ordinary 
variations to which Orchidaceee are subject, are in all respects analogous to what is met with in 
other plants, and as is exemplified in the plant before us from Sincapoi e, in which, while the lip 
becomes shorter, broader, and with a much blunter middle lobe, everything else remains so exactly 
the same, that nobody can entertain a doubt about the specific identity of the plant with Cymbt- 
dium pendulum. The vertical plates of the lip, in particular, are quite unchanged, showing, as 
