Image from page 193 of "The natural history of plants, their forms, growth, reproduction, and distribution;" (1902)

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Identifier: naturalhistoryof02kern
Title: The natural history of plants, their forms, growth, reproduction, and distribution;
Year: 1902 (1900s)
Authors: Kerner von Marilaun, Anton, 1831-1898 Oliver, Francis Wall, 1864- Macdonald, Mary Frances Ewart Busk, Marian Balfour, Lady
Subjects: Botany
Publisher: London, Blackie
Contributing Library: NCSU Libraries
Digitizing Sponsor: NCSU Libraries


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ke those of Tulips (Tulipa), have a small depression which secretephoney on the broad thickened base of the filament opposite the corolla. In thfwidely-distributed Meadow Saflron {Colchicum autumnale) there is an orange-coloured honey-secreting body on the stamens just above the place of unionwith the violet leaves of the perianth, and the honey there formed fills a channelwhich traverses the adjoining perianth-leaf. The same thing occurs in otherSafirons and also in the genus Trillium. In Geraniaceous plants, especially inErodium and Geranium, a wart-shaped, sometimes hollow, nectary arises onthe base of each of the five inner stamen-filaments on the side directed towardsthe sepals. The nectaries at the base of the thread-like filaments of manyCaryophyllacesB exhibit an immense variety of form. Sometimes all the stamensof a flower are a little thickened at their root, and secrete honey from a yellowtissue opposite the ovary (e.g. in TelepJiium. Imperati), or a pair of honey-secreting

Text Appearing After Image:
176 ALLUREMENTS OF ANIMALS FOR THE DISPERSION OF POLLEN. warts are found at the base of each filament {e.g. in Alsine mucronata and verna).Sometimes again only the stamens opposite the calyx have swollen bases whichsecrete honey on the grooved side opposite the ovary (e.g. Gherleria sedoides).In the flowers of Sagina Linncei each of the thread-like stamen-filaments oppositethe calyx is surrounded at the base by a cup-shaped nectary. Very often thenectaries of adjacent stamens, in the flowers of the above-mentioned plants, fusetogether into a ring, the fusion being only just indicated in the Geraniaceaj, butmore decidedly in many Caryophyllace^e (e.g. in Spergvla), and still more amongstLinaceous and Caryophyllaceous plants (Linum, Gypsophila, Dianihus, Lychnis).In the flowers of most Papilionacese the stamens form the nectar. Nine stamensare fused into a tube in which the ovary is inclosed. This ovary is at the baseof the flower narrowed into a stalk, while the tube, onthe other hand,


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bookidnaturalhistoryof02kern bookyear1902 bookdecade1900 bookcentury1900 bookauthorkernervonmarilaunanton18311898 bookauthoroliverfranciswall1864 bookauthormacdonaldmaryfrancesewart bookauthorbuskmarianbalfourlady booksubjectbotany bookpublisherlondonblackie bookcontributorncsulibraries booksponsorncsulibraries bookleafnumber193 bookcollectionamericana bhlcollection

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