1220. 
1221. 
1222. 
1223. 
1224. 
1225. 
1226. 
1227. 
1228. 
1229. 
1230. 
1231, 
1232. 
1233. 
1234. 
1235. 
1236. 
1237. 
1238. 
1239. 
1240. 
1241. 
1242. 
1243. 
FLOWER POLLINATION 263 
Segregates of Viola canadensis. [Branches bearing cleistogamous flowers and 
others bearing chasmogamous flowers sometimes spring from the same 
main axis beside one another.]  Pittonia, Washington (D.C.), v, 1902, 
Pp. 24-9. 
Revision of Romanzoffia. [R. californica Greene and other Californian species 
propagate vegetatively by means of small axillary bulbils.] Op. cit., v, 1902, 
PP. 34-42. 
Greenleaf, R.W. Fertilisation of Posoqueria longiflora. Proc. Soc. Nat. Hist., 
Boston (Mass.), xviii, 1876, pp. 354-5. 
Grenacher, H. Untersuchungen iiber das Sehorgan der Arthropoden, insbeson- 
dere der Spinnen, Insekten und Krustaceen. Gédttingen, 1879. 
Gressner, H. Notiz zur Kenntnis des Involucrums der Compositen, Flora, 
Marburg, Ixix, 1886, pp. 94-6. 
Grevillius. See under Lindmann, C. A. M. 
Grieve, P. Cross-breeding in Plants (Pelargonium). Gard. Chron., London, 
1872, p. 1103. 
Influence of Foreign Pollen on the Progeny of Plants (Geranium). Op. cit., 
New Ser., v, 1876, p. 699, and vi, 1876, p. 49. 
Grisebach, A. Der Dimorphismus der Fortpflanzungsorgane von Cardamine 
chenopodifolia Pers. Ein Beitrag zur Theorie der Befruchtung. Bot. Ztg., 
Leipzig, xxxvi, 1878, pp. 723-8. 
Grénlund, C. Om Blomsterbestévning. Kjébenhavn, 1883. 
Groom, James. Insect Fertilisation (Pelargonium). Garden, London, x, 1876, 
p. 558. 
Insect Fertilisation. Gardeners Monthly, Philadelphia (Pa.), xix, 1877, p. 249. 
Groom, P. Botanical Notes, No.6. Extrafloral nectaries of Aleurites. Ann. Bot., 
Oxford, viii, 1894, pp. 228-30. 
Gross, Wilhelm. Uber den Farbensinn der Tiere, insbesondere der Insekten. 
SitzBer. Isis, Dresden, v, 1880. 
Grosser, W. Cistaceae. [Pollination, pp. 5-7.] Englers Pflanzenreich, Heft 14, 
Leipzig, 1903. 
Grote, A. Radcliffe. The Hawk Moths of North America. [Includes a number 
of observations on flower-visits.] Bremen, 1886. 
Griiss, J. Beitrige zur Biologie der Knospe. Jahrb. wiss. Bot., Leipzig, xxiii, 
1892, pp. 637-702. 
Guer, Michael J. Some notes on hybridism, variation and irregularities in the 
division of the germ-cell (Amer. Morphol. Soc.). Science, New York, New 
Ser., xv, 1902, pp. 530-1. 
Guibert and Guillemet. Atlas de biologie végétale, Fasc. 1. Paris, 1897. 
Guignard, J. A. Insects and Orchids. Ann. Rep. Ent. Soc., Ontario, xvi, 1886, 
P- 43- 
Guignard, J. A., and Fletcher, J. The interrelation of Insects and Flowers. 
Canad. Entomol., Toronto, xxvi, 1894, pp. 111-2.—Ab.: Justs bot. Jahresber., 
Leipzig, xxii, (1894) 1897, p. 274. 
Guignard, Léon. Sur les effets de la pollinisation chez les Orchidées. C.-R. 
Acad. sci., Paris, ciii, 1886, pp. 219-21. 
Observations sur les ovules et la fécondation des Cactées. Bul. soc. bot., Paris, 
_ Ser. 2, viii, 1886, pp. 276-80.—Ab.: Bul. soc. bot., Lyon, iv, 1886, p. 18. 
Sur la fécondation des Cypripédes. Nat. Canad., Quebec, xv, 1886, pp. 94-103. 
Sur la pollinisation et ses effets chez les Orchidées. : Ann. sci. nat. (Bot.), Paris, 
Ser. 7, iv, 1886, pp. 202-40. — Ab.: Bot. Centralbl., Cassel, xxxiv, 1888, 
p. 297. 
