A very beautiful stove shrub, which Sir W. J. Hooker supposes to be the same as L. Maximiliàna Mart., a native of Brazil. The species is easily propagated by cuttings; and it produced abundance of its splendid flowers in the Glasgow Botanic Garden, in June and July, in stove heat. (Bot. Mag., Dec.) 1181. OSBE’CKIA 30391 canéscens Fl. Cab, no. 123. Cactacea, 1472. CE REUS Martianus Zucc. Dr. Von Martius's or 2 ap Pk Mexico 1838. C p.l.s Bot. mag. 3768. A species nearly allied to C. flagellifórmis, but with a somewhat erect stem. The flowers are long, tube-shaped, and pink; and the young fruit is green, about the size of a large nut," and partially clothed with persistent tufts of hairs." It is a native of Mexico, and flowers abundantly during the summer months. (Bot. Mag., Dec.) 1472. CE'REUS 28290 squamuldsus. Synonyme: Lepismium commune Dec., Bot. mag. t. 3763. Rubiaceæ. Leptodermis lanceolata Wall. A nearly hardy small shrub, with bright strongly veined leaves, "and pale yellow flowers, tinged with purple. It is something like a cream-coloured bouvardia." (B. M. R., Nov.) Compósitæ. 2363. DAHLIA 29803 Barkèria Fl. Cab. no. 127. 2373. ZA MIA 21633 angustifolia L., Fl. gard. t. 35. f. 3. Lobeliàceæ. 609. LOBE LIA ignea Hort. fiery or 4 au.s S Mexico 1838. D and C 1 Paxt. mag. of bot. vi. p. 247. A very showy Lobèlia, sent to England by Mr. Mackay of Liège, in 1838, and said to be raised from seeds received from Mexico. It appears more tender than its congeners, and has hitherto been kept in the stove; but Mr. Paxton thinks that it will succeed in a green-house, if carefully "protected from the frost, and very cautiously supplied with water. A damp atmosphere must be especially avoided." It is propagated by suckers, which it sends up in great abundance from the roots, or by cuttings, taken from those shoots which do not flower, or from which the blossoms are timely plucked." (Paxton's Mag. of Bot., Dec.) Ericaceae. 1345. A'RBUTUS 11075 laurifòlia Bot. Reg. 1839, t. 67. "This plant was introduced from Mexico by the last Lord Napier, and given to Mr. Lambert, who is of opinion that it is the true A. laurifòlia of Linnæus's Supplement;" and in this opinion Dr. Lindley appears to agree. (Bot. Reg., Dec.) Convolvulaceæ. + Ipoma a púrga Wend. Some confusion has arisen respecting the plant which produces the jalap, though all agree that it is a species of Convolvulus or Ipomoea. The fact is, that several Mexican plants belonging to this order are used for producing the drug; but it is from the fleshy root of Ipomoea púrga that the principal supply is derived. This plant has lately flowered in the garden of Thomas Harris, Esq., Kingsbury; and Mr. Beaton observes that "it seems to require a cool atmosphere, and plenty of room at the roots. In the stove it grows too vigorously, without any disposition to flower." (B. M. R., No. 136., Nov.) + Batatas betacea Lindl. A very beautiful species with pale violet flowers, having a deep purple eye. The root is tuberous, and resembles that of the red beet, both in size and colour. It blossoms profusely, and appears to prefer a cool atmosphere; though it is a native of Demerara. It came to England in 1838, a root having been accidentally imported among some orchideous plants. (B. M. R., No. 152., Dec.) Solanacea. +FABIA NA Ruiz & Pavon. (In honour of F. Fabiano, a Spanish botanist.) or 3 my W Chile 1838. C p.s Bot. reg. 1839, 59. A very pretty little Chilian shrub, with scaly leaves like a Thùja, and white heath-like flowers, which it produces in great profusion. In its native country it grows on the sandy banks of rivers. It requires the protection of a greenhouse in winter, but in summer “it should be turned out of doors, but not exposed to too bright sunshine." It is propagated by cuttings, and should be grown in a mixture of peat and sand. There are plants in the nurseries of Messrs. Lucombe and Pince at Exeter, and Messrs. Rollisson of Tooting. (Bot. Reg., Nov.) Labiata. 76. SA'LVIA 719 pátula Bot. Gard. 714. 3451. GARDOQUIA 29981 multiflòra Paxt. Mag. of Bot. vi. p. 223. Thymela'a. 87. PIMELE'A 805 incàna Bot. no. 147. This plant is stated in the Botanist to be the same as the P. nívea of the Floral Cabinet; the plant there figured not being the true P. nívea of Labillardière. (Botanist, Dec.) Orchidacea. 2554. EPIDE'NDRON (Encyclia) cepifórme Hook. Onion-rooted or 3 my O Mexico 1838. D p.r.w Bot. mag. 3765. A very splendid species of Epidéndron, belonging to the division considered as a new genus by Sir W. J. Hooker, under the name of Encyclia; but which Dr. Lindley thinks will not stand, and which Sir W. J. Hooker himself appears to have abandoned. The present species is a native of Mexico, whence it was sent, in 1838, by Mr. Parkinson, the consul there, to the late Duke of Bedford, at Woburn. (Bot. Mag., Dec.) + invérsum Lindl. A native of Brazil, nearly related to E. fràgrans. "The flowers are straw-coloured, with a few purple streaks on the column, and at the base of the lip, and have a heavy not very pleasant smell, something like that of ground ivy." Dr. Lindley proposes to include all the species of Epidendron, of which E. fràgrans may be considered the type, in one section under the name of Osmóphytum. (B. M. R., No. 135., Nov.) 2542. CŒLO'GYNE 29735 ocellàta Bot. Mag. t. 3767. elata Lindl. This species has lately flowered in the Horticultural Society's Garden. "The leaves are more than a foot long," and the flowers are white, "stained with yellow near the point of the lip, and having an unpleasant smell, very like that of the berberry blossom." (B. M. R., No. 151., Dec.) 376. LI'PARIS 30190 Walkèria Bot. Mag. 3770. 3566. GRAMMATOPHYLLUM [65; and Paxt. mag. of bot. vi. p. 217. multiflorum Lindl. many-flowered or 2 Br.G Manilla 1838. D p.r.w Bot. reg. 1839. "This plant has very much the aspect of a gigantic Cymbidium, with long coriaceous leaves, distichous at the base." The raceme is large and handsome, but the flowers themselves want brilliancy of colour. (Bot. Reg., Dec., and Part. Mag. of Bot.) 3538. CYRTOCHI'LUM mystacinum Lindl. whiskered ✰ or 12 Y Peru 1837. D p.r.w Bot. reg. 1839, 62. A curious little plant, a native of Peru, imported in 1837. When this plant was first mentioned in the miscellaneous matter of the Botanic Register for 1838, the flowers were described as "bright yellow white-coloured," instead of "bright yellow whole-coloured." (Bot. Reg., Nov.). 2547. DENDROBIUM 29818 formòsum. 5393. MILTONIA [vi. p. 241. candida Lindl. white-lipped or 2 n Y.R.W Brazil 1838. O p.r.w Paxt. mag. of bot. A very handsome species, flowering abundantly. (Paxt. Mag. of Bot., Dec.) + Specklínia obovata Lindl. "A small Brazilian plant, with the appearance of a Pleurothallis." (B. M. R., No. 137., Nov.) Rodriguezia laxiflòra Lindl. A pale-green-flowered Brazilian plant, “with a very lax nodding spike." (B. M. R., No. 130., Nov.) +crispa Lindl. The flowers have a crisped appearance, and "are seagreen, bordered with yellow;" their fragrance resembles that of primroses. A native of Brazil. (B. M. R., No. 139., Nov.) + Catasetum proboscideum Lindl. Nearly related to C. cérnuum and C. barbatum, of which last it may prove merely a variety. (B. M. R., No. 140., Nov.) longifolium Lindl. This plant has lately flowered at Battersea. The flowers are very numerous, and are produced on a drooping raceme; they are of a bright orange, bordered with violet. (B. M. R., No. 154.) La lia flava Lindl. A native of Mexico, which, though it has been several years in England, flowered for the first time at Carclew, in the autumn of 1839. +Dicrypta discolor G. Lodd. Remarkable for the colour of the under side of the leaves, which is a deep purple. "The flowers are orange-coloured, and about the size of those of D. Baúeri.” (B. M. R., No. 145., Dec.) + Octomèria diaphana Lindl. A pretty little plant, with nearly transparent flowers, which are white and scentless. A native of Brazil. (B. M. R., No. 146., Dec.) +Fernandezia lunífera Lindl. The flowers are very large, and have a pair of supernumerary lobes at the base of the labellum, which "stand erect, like two curved horns." It is a native of Brazil, where it is found on trees. (B. M. R., No. 147., Dec.) Oncidium excavatum Lindl." This fine Peruvian plant has flowered with Messrs. Loddiges. It has yellow flowers spotted with brown, and is easily known by the base of the labellum being very convex, a little hollowed out in front, and excavated with a deep pit on the under side." (B. M. R., No. 150., Dec.) Odontoglossum Clowèsii Lindl. A Brazil plant, with "large strong flowers, yellow mottled with brown, while the lip is white, with a rich violet base." (B. M. R., No. 153., Dec.) + Pleurothallis scúbripes Lindl. which flowered at Carclew in 1839. with reddish purple lines. (B. M. R., Iridacea. 1907. PATERSO'NIA sapphirina Lindl. sapphire A curious little plant, a native of Brazil, jl.au B Swan River 1837. s.p Bot. reg. 1839, 60. Nothing can be more beautiful than the rich deep blue of the flowers of this plant, but, unfortunately, they are of very short duration. It is a native of the Swan River Colony, whence it was introduced by Mr. Mangles. (Bot. Reg., Nov.) Amaryllidaces. Clitánthes W. Herb. "The name Clinánthus, which was given from the obliquity which the flowers in Ruiz's specimen of his undescribed Pancràtium lùteum had taken in drying, is changed for Clitanthes, from klitus, a mountainous declivity, and anthos, a flower." Dr. Lindley describes three species, viz., C. hùmilis, C. Macleánica, and C. lùtea, of which he had received notices from the Hon. and Rev. W. Herbert. They are all natives of Lima. (B. M. R., No. 141., Nov.) + Ismène deflexa W. Herb. This species forms a connecting link between the genera Ismène and Elisèna. There are, indeed, several species of these two genera so closely allied, that it seems probable that the latter genus will merge into the former. Under this head, Mr. Herbert observes that "every Ismène delights in white sand, and every Hymenocallis in strong alluvial soil, and immersion in water." (B. M. R., No. 142., Nov.) *PENTLANDIA W. Herb. (In honour of J. B. Pentland, Esq., Consul-General in Peru.) P. m. 1 lacunosa W. H.; P. m. 2 Sulivánica W. H. (Commodore Sulivan's.), There are two forms of this species, differing very slightly from each other. The first was found in Cusco, in Peru, and was sent to Spofforth, under the name of the red narcissus, by J. B. Pentland, Esq., in compliment to whom the genus is named; and the other was found by Commodore Sulivan, during his command on the west coast of South America, in 1837. Both varieties flowered for the first time in England in August, 1839. (Bot. Reg., Dec.) Asphodelacea. 1050. THYSANO TUS [of bot. vi. p. 243. intricatus Hort. intricate-stemmed orj P Swan River 1838. D s.l.p Paxt. mag. This little plant, though its stems are very slender, has them so curiously interlaced that they support themselves. Seeds of it were sent home from the Swan River in 1838. It is grown in sandy loam and peat, and requires plenty of water during the growing season, with perfect drainage. (Paxt. Mag. of Bot., Dec.) Echeándia terniflora Ort. Conanthèra Echeándia Pers.; Anthéricum refléxum Cav. This singular plant flowered at Carclew in June, 1839. It is a native of Mexico, and was introduced in 1837. (B. M. R., No. 144., Nov.) Commelinaceæ. 1000. TRADESCA'NTIA spicata Know. & West. spiked or 150 P Mexico 1837. D co Fl. cab. no. 144. A singular species, with an upright stem, and rather small dark purple flowers. A native of Mexico, introduced in 1837. (Floral Cab., Nov.) ART. VI. On Conservative Walls, and their Superiority, as Sources of Botanical and Floricultural Interest, to Green-houses and Conservatories. By the Rev. T. BAINBRIDGE, M.A. I HAVE often wondered that more has not been said in your Magazine, than has hitherto appeared, on the subject of conservative walls. No one who has watched, for the last six or seven years, the conservative wall in the Horticultural Society's garden, can have failed to be struck with the great beauty and variety, joined to rarity, which that wall has displayed. Not only may the plants of the South of Europe, which are too tender to stand in the open garden, be brought to flower and fruit against such walls, but almost all the shrubs and trees of New Holland and Australia will grow against them with great vigour in the summer season; and, even if they are killed down to the ground during winter, if their roots are kept dry and protected through that season, they will spring up again the following summer with vigour. How different the appearance of the acacias and eucalypti of New Holland, when grown against such walls in the open air, from what they are when grown in pots under glass! The appearance made by the common myrtle, the pelargonium, the passion-flower, the loquat, the camellia, Lagerstroemia indica, metrosideros, melaleuca, myoporum, and hundreds of others that will readily occur to every gardener, when planted against such walls, and properly treated, surpasses, in my opinion, every other kind of botanical enjoyment which a garden has hitherto afforded. Even Chinese chrysanthemums and dahlias, when trained against such walls, have a very splendid appearance; and, under a slight projecting roof, I have known the dahlia saved from the frost, and continuing to show flower till Christmas, and the chrysanthemums till the middle of January. In a word, I consider a conservative wall as a very superior source of enjoyment to either a green-house or a conservatory; unless, indeed, these structures (as they are at Ashridge, and more particularly at Bromley Hill) are so connected with the living-rooms of the house, as to form a part of the suite of rooms. I should therefore wish to see the subject of conservative walls taken up by yourself or by some of your practical readers, and the proper construction of such walls, the mode of planting them, the kind of plants suitable, and the management throughout the year, pointed out. In all this bearing in mind, that, while a green-house, or even a pit or any other glazed structure, is attended with some extra expense at first, and a good deal of expense annually to keep them in repair, the conservative wall may form a part of the boundary of the garden or pleasureground, or a screen to offices, or a connecting line of architecture between the house and offices, while its annual repairs may be considered as next to nothing. Only let the subject of conservative walls be once thoroughly entered into by gardeners and their employers, and I feel certain that the result will be one of the greatest additions that have been made to gardening enjoyments since the invention of green-houses. London, Nov. 1839. IN the Suburban Gardener we have, on various occasions, recommended a conservative wall; and, in fig. 4. we have slightly indicated a conservative wall, serving to connect the house with the offices and the kitchen-garden. In this plan, a is the entrance portico to the house; b the drawingroom, with three windows at one end opening down to the floor, and serving also as doors connecting this room with the conservatory. In the conservatory there is a broad walk down the middle (c), terminating in a door in the centre of its semicircular end; outside of which are steps descending to a circular basin and fountain, beyond which is the walk (e) in front of the conservative wall (b b); which wall commences at the conservatory, and extends to the kitchen-garden. The walk in front of this wall terminates in an archway (i), which forms the main entrance to the kitchen-garden; and on the lawn, in the angle at the left, is the symmetrical flower-garden (1). There is a walk at k, communicating with the other parts of the ground; and the wall on the right of that walk is also conservative, with a broad border between it and the walk, which can be heated below by pipes of hot water, conducted through a stratum of broken stones or bricks. Hot water is preferred to steam, as causing less expansion, and consequently less risk of derangement in the conducting pipes. The mass of stones, when once heated, will be several days in parting with that heat, unless in the case of heavy rains; so that, throughout the summer, the fire will only be required twice or thrice a week; and in spring, autumn, and winter the plants are supposed to be removed to a house. On the border, |