1589, 
1590. 
1591. 
1592. 
1593. 
1594, 
1595. 
1596. 
1597. 
1598. 
1599. 
1600. 
1601. 
1602. 
1603. 
1604. 
1605. 
1606. 
1607. 
1608. 
1609. 
1610. 
FLOWER POLLINATION 279 
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Thering, H.v. Zur Frage der Bestaéubung von Bliiten durch Schnecken. Kosmos, 
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Ihne, Egon. Uber Variabilitat der Pflanzen. Gaea, Leipzig, xviii, 1882, pp. 273-41, 
303-6. 
See also under Hoffmann, Hermann. 
Ikeda, T. Studies in the physiological functions of antipodal and related pheno- 
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Vv, 1902, pp. 41-72, 289-90.—Ab.: Bot. Centralbl., Cassel, xc, 1902, pp. 289-90. 
Quelques observations concernant l’oranger. Bull. Agric. Soc., Tokyd, 1903, 
pp. 1-8.—Ab.: Bot. Centralbl., Cassel, xcili, 1903, p. 242. 
Double fertilization in Tricyrtis hirta. Bot. Mag., Tokyo, xv, 1901, pp. 207-13, 
233-40. 
Ikeno, S. Preliminary note on the formation of the canal-cell of Cycas revoluta. 
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Vorlaufige Mitteilungen iiber die Spermatozoiden bei Cycas revoluta. Bot. 
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Untersuchungen iiber die Entwickelung der Geschlechtsorgane und den Vorgang 
der Befruchtung bei Cycas revoluta. Jahrb. wiss. Bot., Berlin, xxxii, 1898, 
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Zur Kenntniss des sog. ‘centrosomenahnlichen’ K6rpers im Pollenschlauch der 
Cycadeen. Flora, Marburg, Ixxxv, 1898, pp. 15-18. 
Notes on the spermatozoid and pollen-tube of Ginkgo biloba. Bot. Mag., Tokyo, 
xiii, 1899, pp. 31-4. 
Different views on the centrosomes in the pollen-tube of Cycadaceae and of 
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Contribution 4 l’étude dela fécondation chez le Ginkgo biloba, Ann. sci. nat. 
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Ikeno, 8., and Hirase, 8. Spermatozoids in Gymnosperms. Ann. Bot., Oxford, 
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Ingen, Gilbert von. Bees mutilating flowers. Bot. Gaz., Chicago (IIl.), xii, 1887, 
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Humble-Bees and Petunia. Op. cit., xii, 1887, p. 89. 
Isaman, L. J. Trichostoma. Amer. J. Sci., Newhaven (Conn.), Ser. 3, xv, 1878, 
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Ixstaedt, Adam. See under Wolff, Christian. 
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