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2318. Note on Quercus dentata. Op. cit., (1885) 1886, pp. 280-1. 



2319. On the Torsion in the Hollyhock, with some observations on cross-fertilization. 



Op. cit., 1886 (1887), pp. 291-2. 

 2820. On Projection of Pollen in the Flowers of Indigofera. Op. cit., (1886) 1887, 

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2321. Notes on Lilium tigrinum Crt;//. Op. cit., 1886 (1887), pp. 297-8. 



2322. On the Fertilization of Cassia Marilandica. Op. cit., 1886 (1887), pp. 314-8. 



2323. Notes on Arisaema triphyllum. Bot. Gaz., Chicago (111.), xi, 1886, p. 217. 



2324. Notes on Mollugo verticillata. Bull.Torrey Bot. CI., NewYork, xiv, 1887, pp. 218-9. 



2325. Sherardia arvensis. Op. cit., xiv, 1887, pp. 238-9. 



2326. Contributions to the life-histories of plants (i). i. Amphicarpa monoica. 2. A 



contribution to the life-history of Cephalanthus occidentahs. 3. Amorpha 

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2327. Veronica perigrina. Bot. Gaz., Chicago (111.), xiii, 1888, p. 157. 



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2330. Contributions to the life-histories of plants (2). i. Some new facts in the 



life-history of Yucca. 2. A study of the Hydrangea in relation to cross- 

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2331. Contributionstothelife-historiesof plants (3). I. Smilacinabifolia. 2. Dichogamy 



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2332. On Gynodioecious Labiatae. Bull. Torrey Bot. CI., New York, xvi, 1889, 



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2333. On elastic stamens in Compositae. Op. cit., xvi, 1889, pp. 68-9. 



2334. Nonnea rosea. Bot. Gaz., Chicago (111.), xiv, 1889, p. 129. 



233.5. On the position of nectar glands in Echinops. Op. cit., xiv, 1889, p. 258. 



2336. On the assumption of floral characters by axial growths in Andromeda Catesboei. 



Op. cit., xiv, 1889, p. 259. 



2337. On the significance of dioecism as illustrated by Pycnanthemum. Op. cit., xiv, 



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2338. Fertilizarion of Yucca. Proc. Acad. Nat. Sci., Philadelphia (Pa.), (1889) 1890, 



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2340. The Fertilization of Hypericum Canadense. Op. cit., xvi, 18S9, p. 242. — Ab. : 



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2341. A Study of the Hydrangea as to the objects of Cross-fertilization. Proc. Amer. 



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