Observations on the structure and economy of plants: to which is added the analogy between the animal and vegetable kingdom / [Robert Hooper].

  • Hooper, Robert, 1773-1835
Date:
1797
Catalogue details

Licence: Public Domain Mark

Credit: Observations on the structure and economy of plants: to which is added the analogy between the animal and vegetable kingdom / [Robert Hooper]. Source: Wellcome Collection.

    24/144 (page 8)
    is the termination of the liber or inner-bark, continued to and accompanying the frudli- fication in this new form of painted leaves. Its ufe is the fame as that of the calyx, ferv- ing as an inner work of defence, for the parts it enclofes ; as the calyx, which is ufu- ally of a ftronger texture, does for an outer one. The leaves, of which the corolla con- lifts, are called 'petals. The corolla receives different names according to the number, form, &c. of the petals. 3. The Stamina, threads or chives, are the male part of the flower, defigned for the prepara¬ tion of the pollen. Each fingle Jiamen con- lifts of three parts, 1. The Filament, or thread, which ferves to elevate the anthera or fummit, and at the fame time connects it with the flower* 2. The Anthera, or fummit, fttuated on the top of the filament, which contains with¬ in it the pollen, and wrhen come to matu¬ rity difcharges the fame. 3. The Pollen, farina fecundans, or meal, con¬ tained within ‘the anthera, is a fine duft fecreted therein, and deftined for the im¬ pregnation of the germen, hereafter to be defcribed. Each portion of this meal is by a microfcope feen to be concealed in a very