Handbook of the British Flora: A Description of the Flowering Plants and Ferns Indigenous To, Or Naturalized In, the British Isles : for the Use of Beginners and Amateurs, Volume 1

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L. Reeve, 1865 - 1076 páginas

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Página 504 - ... be chiefly engraved on steel, by the artist most highly renowned in each department for his technical knowledge of the subjects, will in all cases be drawn from actual specimens, and coloured separately by hand.
Página xxvii - ... when the lower part is cylindrical and the upper portion expanded horizontally. In this case the name of tube is restricted to the cylindrical part, and the horizontal portion is. called the limb, whether it be divided to the base or not. The orifice of the tube is called its mouth or throat.
Página xxxiv - The Pericarp is the portion of the fruit formed of the ovary, and whatever adheres to it exclusive of and outside of the seed or seeds, exclusive also of the persistent receptacle, or of whatever portion of the calyx persists round the ovary without adhering to it.
Página xxv - ... stamens) alternate with the outer ones, and are therefore opposite to the petals. If there is only one whorl of stamens, they most frequently alternate with the petals ; but sometimes they are opposite the petals and alternate with the sepals. The Pistil forms the inner whorl ; its carpels usually alternate with the inner row of stamens. 91. In an axillary or lateral flower the upper parts of each whorl (sepals, petals, stamens, or carpels) are those which are next...
Página xviii - ... 40. Leaves are more or less marked by veins, which, starting from the stalk, diverge or branch as the blade widens, and spread all over it more or less visibly. The principal ones, when prominent, are often called ribs or nerves, the smaller branches only then retaining the name of veins, or the latter are termed veinlets.
Página li - ... stopped by summer droughts or the approach of winter, and only flower the following season upon a second growth. The latter have often been mistaken for perennials. Hybrids, or crosses between two distinct species, come under the same category of anomalous specimens from a known cause. Frequent as they are in gardens, where they are artificially produced, they are probably rare in nature, although on this subject there is much diversity of opinion, some believing them to be very frequent, others...
Página xlv - ... rudimentary state which are never further developed, and parts which are afterwards very unequal or dissimilar are perfectly alike at this early period. On this account flowers in this very early stage are supposed by some modern botanists to be more normal, that is, more in conformity to a supposed type ; and the study of the early formation and growth of the floral organs, called Organogenesis, has been considered essential for the correct appreciation of the affinities of plants.

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