An Introduction to Physiological and Systematical BotanyLongman, Hurst, Rees, and Orme ..., and J. White, 1809 - 533 |
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An Introduction to Physiological and Systematical Botany James Edward Smith Podgląd niedostępny - 2019 |
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animals anthers bark barren flowers base bears beautiful blossoms botanists Botany bracteas branches buds called calyx capsule catkin character Class coloured common compound consists corolla cotyledons curious Curt cuticle dioecious distinct Embryo Engl essential Exot fertile flowers fibres filaments florets flower-stalks flowers fluids footstalk former fructification fruit Gærtner gardens genera genus germen grasses grow Hamel imbibe inflorescence insects instances involucrum Jussieu kind latter layers leaf leaflets leaves Legume less Linnæan system Linnæus membranous ment moisture Monogynia Mosses næus natural order nectary nourishment observed Orchis organs peculiar perfect petals Pict pistils plants pollen Polyandria Polygamia prove racter receptacle remarkable root sap-vessels scarcely Schreber secretions seed-vessel seeds separate shrub sometimes species spiral stalk stamens Stamens and Pistils stem stigma stipulas style substance tion trees Triandria tribe tube umbel umbelliferous various vegetable body vessels vital principle Willdenow wood writers
Popularne fragmenty
Strona xxi - Soft roll your incense, herbs, and fruits, and flowers, In mingled clouds to him whose sun exalts, Whose breath perfumes you, and whose pencil paints.
Strona 500 - If there be plenty of paper, they often dry best without shifting ; but if the specimens are crowded, they must be taken out frequently, and the paper dried before they are replaced. The great point to be attended to is that the process should meet with no check. Several vegetables are so tenacious of their vital principle, that they will grow between papers, the consequence of which is a destruction of their proper habit and colours.
Strona 380 - In our science,' wrote Dr. JE Smith, in 1807 (Introduction to Botany), 'the names established throughout the works of Linnaeus are become current coin, nor can they be altered without great inconvenience. Perhaps, if he had foreseen the future authority and popularity of his writings, he might himself have improved upon many which he adopted out of deference to his predecessors, and it is in some cases to be regretted that he has not sufficiently done so.
Strona xxiv - They are sensible to the action of nourishment, air, and light, and either thrive or languish according to the wholesome or hurtful application of these stimulants. This is evident to all who have ever seen a plant growing in a climate, soil, or situation, not suitable to it. Those who have, ever gathered a rose, know but too well how soon it withers ; and the familiar application of its fate to that of human life and beauty is not more striking to the imagination than philosophically and literally...
Strona xvii - ... so sweetly sung by one of nature's own poets. The humblest weed or moss will ever afford him something to examine or to illustrate, and a great deal to admire. Introduce him to the magnificence of a tropical forest, the enamelled meadows of the Alps, or the wonders of New Holland, and his thoughts will not dwell much upon riches or literary honours, things that " Play round the head, but come not near the heart.
Strona 5 - Their curious crystallization bears some resemblance to organization, but performs none of its offices, nor is any thing like a vital principle to be found in this department of nature. If it be asked what is this vital principle, so essential to animals and vegetables, but of which fossils are destitute, we must own our complete ignorance. We know it, as we know its omnipotent Author, by its effects.
Strona 205 - ... the light. Light acts beneficially upon the upper surface of leaves, and hurtfully upon the under side ; hence, the former is always turned towards the light, in whatever situation the plant may happen to be placed.
Strona 212 - But when we attempt to consider how the peculiar secretions of different species and tribes of plants are formed ; how the same soil, the same atmosphere, should, in a leaf of the vine, or sorrel, produce a wholesome acid, and in that of a spurge, or...
Strona 97 - Great degrees of heat, short of boiling, do not impair their vegetative power, nor do we know any degree of 202 ROOTS. cold that has Such an effect Those who convey seeds from distant countries, should be instructed to keep them dry ; for if they receive an,y damp sufficient to cause an attempt at vegetation, they necessarily die, because the process cannot, as they are situated, go on.
Strona xxiv - They have in some instances spontaneous, though we know not that they have voluntary, motion. They are sensible to the action of nourishment, air, and light, and either thrive or languish according to the wholesome or hurtful application of these stimulants.