An introduction to medical botany : illustrated with coloured figures / by Thomas Castle, F.L.S.

  • Castle, Thomas, 1804?-1840?
Date:
1829
Catalogue details

Licence: Public Domain Mark

Credit: An introduction to medical botany : illustrated with coloured figures / by Thomas Castle, F.L.S. Source: Wellcome Collection.

Provider: This material has been provided by The University of Glasgow Library. The original may be consulted at The University of Glasgow Library.

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    leaves placed at a small distance, or close to the corolla. It is particularly conspicuous in the unexpanded flower bud of the Papaver Rh'jeas, consisting of two green leaves, as represented in the 29th figure. Also shown by the letter (a.) in the 1st figure. There are many kinds of calyces enumerated in general wo! ks ; viz. the perianth, the fence, the catkin, the sheath, the glume, th6 veil and the curtain. Perianth :—The perianth or flower-cup is the most common kind. It is generally green and situate immediately belovv^ the flower, so as to form a part of it. Possessed by the Leontodon Taraxacum, Rosa Centifolia, Papaver Rhasas, &c. (F. 29 ) Involucrum:—The fence or involucrum, is a species of calyx peculiar to umbelliferous plants. If it is placed below the common receptacle, (a. a. F. 31.) as in the Conium Maculatum, it is called a general involu- crum ; and when attached to the smaller divisions, as also in the hemlock, (b.b.)itis denominated a/)a? ^jaZmi;oZMcn/m. Amentum:—The catkin or amentum consists of a common cylindrical receptacle, beset with nu- merous scales, each of which is accompanied by one or more stamens or pistils, so that the whole forms an aggregate flower.
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