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Anotace knihy

Excerpt from Journal of the Royal Horticultural Society, Vol. 11 Petals. - We may roughly classify the Saxifrages under three groups, according to the colour of the petals: pure white, as in hypnoides and granulata white dotted with small spots of red, as in umbrosa and stellaris; and bright red or bright purple or bright yellow, as in aizoides, Hirculus, and oppositifolia. I should like to ask whether this difference in the colour of the żower is at all correlated with its attractiveness to insects. According to the observations of Hermann Muller, some of the bright-coloured species, in their native homes amongst the mountains, are Visited by an extraordinary number and variety of insects. He gives a catalogue of 126 Species which he has observed to visit the bright yellow żowers of S. Aizoides. Eight of these are Coleoptera (beetles), 85 Diptera (żies), 20 Hymeno ptera (bees), and 13 Lepidoptera (butterżies and moths). To what extent are the żowers of the garden Saxifrages Visited by insects '2 What relation, if any, have the red dots on the white petals of several of the Species to insect fertilisation. The glandulosity of the calyx must interpose a barrier to small wing less insects creeping up into the żower from below. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Parametry knihy

• Plný název: Journal of the Royal Horticultural Society, Vol. 11 (Classic Reprint)
• Autor: D. Morris
• Jazyk: Angličtina
• Vazba: Brožovaná
• Počet stran: 458
• EAN: 9780259894421
• ISBN: 0259894427
• ID: 16330654
• Nakladatelství: Forgotten Books
• Hmotnost: 610 g
• Rozměry: 229 × 152 × 24 mm
• Datum vydání: 16. May 2017

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