Copy 1, Volume 2

English botany, or, Coloured figures of British plants : with their essential characters, synonyms, and places of growth / By Sir James Edward Smith.

  • James Sowerby
Date:
[1841-1852]
Catalogue details

Licence: Public Domain Mark

Credit: English botany, or, Coloured figures of British plants : with their essential characters, synonyms, and places of growth / By Sir James Edward Smith. Source: Wellcome Collection.

    7/510
    Class IV. TETRANDRIA. Order I. MONOGYNIA. Genus LXVIH. DIPSACUS. Teasel. Nat, Order. Dips ace as. Gen. Char. Involucre of many leaves. Receptacle chaffy. Calyx superior, double, the external minute, the internal entire. Rigid, biennial, herbaceous plants, rough with bristles, the leaves opposite. Flowers in terminal heads, which are so condensed as to resemble compound flowers, the bractese be¬ coming the leaves of the involucre and scales of the receptacle. The double calyx, hardly worthy the name, is peculiar in its structure; the outer part forms a margin, and the inner a crown to the seed. A somewhat similar one is found in the following genus, where the inner part has long teeth, and forms a passage to the pappus of syngenesious flowers. The species seldom grow in situations to be injurious to the farmer. One of them is used in dressing cloth to raise the nap: the other species appear to be useless. DIPSACUS Fullonum. Fuller's Teasel. Tab. 19-4. Leaves connected at the base. Scales of the receptacle broad, hooked. Involucre spreading. Dipsacus Fullonum, E. B. 2080. Smith 1. 192. Linclley 139. Hooker 59. ed. 2. 62. Hudson mentions this plant as growing about hedges. In the clothing counties, where it is cultivated for use, it mav escape from the fields. There is much doubt concerning the value of its specific difference from the following j it consists chiefly in the stiff hooked scales of the receptacle, upon which its utility to the fuller depends, but which are gradually lost, unless the plants be grown in a richly manured strong soil. In size and habit similar to the following, but the leaves are blunter and more constantly connected at the base. VOL. II. B
    digitised image 1
    digitised image 2
    digitised image 3