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2546. White, C. F. Fertilisation of Flowers. > S c a b i o s a). — Nature, Vol. XIV. 

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2547. White, F. Buchana n. Winter-Fertilisation by Agency of Insects. — Journ. 

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2548. — — The Influence of Insect-Agency in the Distribution of Plants. — Jouni. of 

 Bot. N. S. Vol. II. p. 11—13. 1873. Amer. Nat. Vol. VII. 1873. p 268-271. 



2549. Whitelegge, Thos. Gynodioecious Plants. — Nature, Vol. XVIII. 1878. p 558. 

 (Ranunculus. Stachys. Geum.) 



2550. Wiesner, Julius. Elemente der Organographie, Systematik und Biologie der 

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 — Biologie. Wien. 1889. — Ref.: Bot. Centralbl. XXXIX. p. 286—288; B. .Tb. 

 1889. I. p. 560. 



2551. — — Notiz über eine Blüte mit positiv geotropischen Eigenschaften. — Ber. 

 d. d. bot. Ges. X. 1«92. Heft 1. 



2552. Williams, .J.Lloyd. Artificral Fertilisation. (Victoria regia). — Gard. Chron. 

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2553. — — Intoxication of humble-bees on certain capitulate flowers. — Journ. of 

 Botany British and foreign. Vol. XXXV. 1897. Nr. 409. p. 8—11. 



2554. Willis, J. C. On Gynodioecism in the Labiatae. (First paper.) — Extracted 

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 May 30. 1892. p. 349—352. — Second paper. Vol. VIII. Pt. I. Nov. 14. 1892. p. 

 17_20. - Third paper. Vol. VIII. Pt. III. Nov. 1893. p. 129—133. — Ref. : B. Jb. 

 1892. I. p. 504; B. C. LIII. p. 149. 



2555. — — Note on the Method of Fertilisation in Ixora. — Proc. of the Cambridge 

 Philos. Soc. Vol. VII Pt. VI. Febr. 22. 1892. — Ref.: Bot. Centralbl. Bd. .55. p. 

 41: B. Jb. 1892. p. 504. 



2556. — — Contributions to the Natural History of the Flower. Nr. I. Fertilisation 

 ofClaytonia,Phaceli3, and Monarda. — Linnean Society 's Journal. Botany, Vol. 

 XXX. London. Febr. 16. 1893. p. 51—63. With I plate. — Ref.: Bot. Centralbl. 

 Bd. 61. p. 109, 110; B. Jb. 1893. I. p. 377—378. — Pt. IL Fertilization Methods 

 of Various Flowers ; Cleistogamy inSalvia verbenaca. — Vol. XXX. Febr. 15. 

 1894. With two plates. — Ref.: B. Jb. 1894. I. p. 298—299. 



2557. _ _ The Natural History of the Flower. — Natural Science. Vol. IV. Nr. 27. 

 May. 1894. p. 347-352. 



2558. — — The Present Position of Floral Biology. — Science Progress. Vol. IV. 

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2559. — — Christian Konrad Sprengel. — Natural Science. Vol. IL Nr. 14. p. 269 — 

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2560. — — and Burkill, J. H. Flowers and Insects in Great Britain. Part I. Annais 

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2561. — — Observation« on the Flora of the Pollard Willows near Cambridge. — 

 Proc. of the Cambridge Philos. Society. Vol. VIII. Pt. IL May. 15. 1893. p. 82-91. 



2562. Willkomm, Moritz. Natürliche Fliegenfallen. — Von Fels zu Meer. Bd. 1. 

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2563. — — Nachtblumen und ihr Leben. Aus dem K. K. botanischen Garten. — Bohemia, 

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2564. Wilson, A. Stephen. On the Fertilisation of Ce real s. — Journ. of Bot. N. S. Voh 

 IV. p. 121, 122. April 1875. Gard. Chron. Feb. 20. 1875. Trans, and Proc. Bot. Soc. Edin. 

 Vol. XL p.506. 1873. VoL XII. p. 64—95.237. 1874. ReL : Nature. Vol XII. 1875. p.270. 



2565. — — On the Association of an Inconspicuous Coralla with Proterog^^nous Dicho- 

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