The Paradisus Londinensis

or coloured figures of plants cultivated in the vicinity of the metropolis

Richard Anthony Salisbury, William Hooker. 1807.

Biblio en ligne

T. 74
LXXIV LEUCOIUM PULCHELLUM. Neat Leucoium. ORDO NATURALIS. Narcissi. Juss. Gen. p. 54.
Sect. 1. Pericarpium inferum. Filamenta toro placentæformi, ad eorum basin mellifero inserta. An- theræ foramine versus basin angustato dehiscentes. Flores penduli. Bracteæ sub florescentiam vegetæ. Pericarpium ovale, succulentulum. Petala fere æqualia, juxta apicem contractiuscula macula viridi. Antheræ obtusæ. Stylus clavatus. Stigma truncatum. Semina nigra, ovalia, lucida, Herbæ 6-18 pollicares. Bulbus ovatus, nunc magnitudine ovi Gallinæ. Folia Narcissi sed læte viridia, 4-6 lineas lata. Flores albi. Pedunculus anceps, sæpius valde compressus. L. foliis incurvo-patentibus: pedunculo 3-7-floro, valde ancipiti margine integerrimo: pericarpio sub florescentiam saturate viridi. L. Bulbosum minus. Besl. Hort. Eystt. Vern. tert. Ord. fol.xvii. f. 3. L. hexaphyllum majus. Vallet Jard. t. 24. Locus natalis haud pro certo innotuit. Floret apud nos versus finem Martii, Aprili.
In the 21st number of this work, I expressed a suspicion that Leucoium Autumnale, from its very different habit, would constitute a genus : that plant afterwards ripened seeds, which have left no doubt about the matter, being comparatively large, whitish, irregularly angulated, and more like bulbs than the black round seeds of Leucoium. Accordingly, it is necessary to give another generic character, and to the narrow-leaved species, I shall in future apply the poetic title of Acis Acis . These two genera with Galanthus, form a separate section in the order, distinguished by the white spongy torus covering the top of the pericarpium, as well as by their anthers : in the former the filaments are inserted distinct from the petals, and honey exudes from the base of each, while in most genera of the other sections, it is discharged from three glands, as in Hyacinthus.
The Leucoium now figured is a real species, hitherto confounded with L. Æstivum, and its diffe- rences were first pointed out to me by Mr. HAWORTH, a botanist, from whose accuracy I have re- peatedly profited. It is reported to grow wild in some parts of this island, producing seeds plenti- fully in our gardens. Bulb often the size of an hen's egg. Leaves appearing in November, of a deeper green and generally broader than in L. Æstivum, very entire, quite smooth. Flowers smaller, from three weeks to a month earlier, exhaling a more perceptible and unpleasant smell. Peduncle the same colour as the leaves, very entire at the edges, not glaucous and crenulated as in L. Æsti- vum. Pedicles from 3 to 7, slender and very long, of a dark green colour, as well as the young fruit. Petals white, with a green spot below the top, their nerves not so conspicuous, and almost all pa- rallel, the inner ones broader. Filaments white. Anthers yellow, inserted at the base, where each cell being emarginated they appear divided into four equal lobes. Style white, with a green spot below the top, club-shaped. Stigma truncated. Seeds from 13 to 20 in each cell, black, oval, shining. REFERENCES TO THE PLATE. 1. Pistillum and Stamina, highly magnified. 2. A transverse section of the Pericarpium. 3. A Seed.

Disponible en PDF sur, Gravure : L. pulchellum

Autre titre disponible : Prodromus stirpium in horto...