NECTAR AND ITS USES. 343 



TRELEASE, WM. (1.) On the fertilization of several species of Lobelia. Am. Natu- 

 ralist, 1879, xiii, 427. (2.) On the fertilization of Symplocarper fcetidus. Am. 

 Naturalist, 1879, xiii, 580. (3.) The fertilization of our native species of Clitoria 

 and Centrosema. Am. Naturalist, 1879, xiii, 688. 



TREVIRANUS. (1.) Die Lehre von Geschlecht der Pflanzen im Bezug auf die neuesten 

 Angriffe. (2.) Ueber Dichogamie nach C. C. Sprengel and Chas. Darwin. Bot. 

 Zeit., 1863, No. 2. (3.) On heterostylid species of Linum. Bot. Zeit., 1863, S. 

 189. (4.) Nachtragliche Bemerkungen tiber die Befzuchtung einiger Orchideen. 

 Bot. Zeit., 1863, No. 32,241. 



TRIMEN, R. (1. ) On the fertilization of Disa grandiflora. Journ, Linn, Soc, Bot., 1863, 

 vii, 144. (2. ) On the structure of Bonatea speciosa, with reference to its fertiliza- 

 tion. Journ. Linn. Soc., 1865, ix, 156. 



VANSENBURG, M. W. Gentiana Andrewsii. Am. Naturalist, 1865, ix, 310. 



WALLACE, A. R. (1.) On the peculiar relations of plants and insects as exhibited on 

 islands. Nature, No. 358, 406. (2.) Bees killed by Tritoma. Nature, xvii, 45. 

 (3.) Tropical Nature and other Essays. London, 1878. (4.) The Malay Archi- 

 pelago. London, 1872. 



WARD, LESTER F. On Sabbatia angularis. Meehan's Gardener's Monthly, 1878, 278. 



WARMING, EUG. Smaa biologiske og morfologiske Bidrag. Bot. Tidsskrift, Kjoben- 

 havn, 1877. 



WEALE, J. P. MANSEL. Notes on the structure and fertilization of the genus Bonatea. 

 Journ. Linn. Soc. Bot., 1867, x, 470. (2.) Note on a species of Disperis found 

 on the Kageberg, South Africa. Journ. Linn. Soc. Bot., 1871, xiii, 42. (3.) 

 Some observations on the fertilization of Disa mac-rant ha. Ibid., 45. (4.) Notes 

 on some species of Habenaria found in South Africa. Ibid., 47. 



WESTWOOD. On the fertilization of the fig. Trans. Ent. Soc., London, ii, 214. 



WEST OF SCOTLAND HORTICULTURAL MAGAZINE. Fertilization of Orchids. Sept., 

 1863, 65. 



WILLDENOW. Grundriss der Kraut erkunde, 353. 



WILSON, ALEX. S. (1.) On the nectar of flowers. Kept. Brit, As. Adv. Sc,, 1878, 567. 

 (2. ) Notes on some dimorphic plants. Ibid., 568. (3. ) Some mechanical arrange- 

 ments subserving cross-fertilization of plants by insects. Ibid., 568. 



WOOD, ALPHOXSO, Cleistogene flowers. Bull. Torr. Bot. Club, 1877, vi, 174, 



WOOD AND STEELE. Fourteen Weeks in Botany. New York, 1879. 



WRIGHT, CHARLES. Cross-fertilization [of Posoqueria]. Am. Naturalist, 1868, ii, 

 437. 



YOUNG, H. W. Fertilization of Gerardia flava. BulL Torr. Bot. Club, 1873, iv, 41. 



