FLOWER POLLINATION 263 



1220. 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. 



1221. Revision of Romanzoffia. [R. califomica Greene and other Califomian species 



propagate vegetatively by means of small axillary bulbils.] Op. cit., v, 1 902, 

 pp. 34-43. 



1222. Oreenleaf, H. W. Fertilisation of Posoqueria longiflora. Proc. Soc. Nat. Hist., 



Boston (Mass.), xviii, 1876, pp. 354-5. 



1223. Orenacher, H. Untersuchungen uber das Sehorgan der Arthropoden, insbeson- 



dere der Spinnen, Insekten und Krustaceen. Gottingen, 1879. 



1224. QresBner, H. Notiz zur Kenntnis des Involucrums der Compositen. Flora, 



Marburg, Ixix, 1886, pp. 94-6. 

 GrevilliuB. See under Iiiudmann, C. A. M. 



1225. Grieve, P. Cross-breeding in Plants (Pelargonium). Gard. Chron., London, 



1872, p. 1 103. 



1226. Influence of Foreign Pollen on the Progeny of Plants (Geranium). Op. cit.. 



New Ser., v, 1876, p. 699, and vi, 1876, p. 49. 



1227. OriBebacb, A. Der Dimorphismus der Fortpflanzungsorgane von Cardamine 



chenopodifolia Pers. Ein Beitrag zur Theorie der Befruchtung. Bot. Ztg., 

 Leipzig, xxxvi, 1878, pp. 723-8. 



1228. Gronltind, C. Om Blomsterbestovning. Kjobcnhavn, 1883. 



1229. Groom, Jajnes. Insect Fertilisation (Pelargonium). Garden, London, x, 1876, 



p. 558. 



1230. Insect Fertilisation. Gardener's Monthly, Philadelphia (Pa.), xix, 1877, p. 249. 



1231. Groom, P. Botanical Notes, No. 6. Extrafloral nectaries of Aleurites. Ann. Bot., 



Oxford, viii, 1894, pp. 228-30. 



1232. GroBB, 'Willielm. Uber den Farbensinn der Tiere, insbesondere der Insekten. 



SitzBer. Isis, Dresden, v, 1880. 



1233. Grosser, W. Cistaceae. [Pollination, pp. 5-7.] Englers Pflanzenreich, Heft 14, 



Leipzig, 1903. 



1234. Grote, A. Badcliffe. The Hawk Moths of North America. [Includes a number 



of observations on flower-visits.] Bremen, 1886. 



1235. GrJiBB, J. Beitrage zur Biologic der Knospe. Jahrb. wiss. Bot., Leipzig, xxiii, 



1892, pp. 637-702. 



1236. Quer, 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. 



1237. Guibert and Guillemet. Atlas de biologie veg^tale, Fasc. I. Paris, 1897. 



1238. Giugnard, J. A. Insects and Orchids. Ann. Rep. Ent. Soc, Ontario, xvi, 1886, 



P- 43- 



1239. 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. 



1240. Guignard, Ij6on. Sur les efifets de la poUinisation chez les Orchiddes. C.-R. 



Acad, sci., Paris, ciii, 1886, pp. 219-21. 



1241. Observations sur les ovules et la fecondation des Cactdes. Bui. soc. bot., Pans, 



Ser. 2, viii, 1886, pp. 276-80.— Ab. : Bui. soc. bot., Lyon, iv, 1886, p. 18. 



1242. Sur la fecondation des Cypripedes. Nat. Canad., Quebec, xv, 1886, pp. 94-103. 



1243. Sur la poUinisation et ses effets chez les Orchid^es. Ann. sci. nat. (Bot.), Pans, 



Ser. 7, iv, 1886, pp. 202-40. — Ab. : Bot. Centralbl., Cassel, xxxiv, 1888, 

 p. 297. 



