56 DIMORPHIC LEAVES IN RELATION TO HEREDITY. 



Expression of sexual characters. Sec Sex. Page. 



successive changes in plants 33-34, 47-48 



tendency to contrast 35 



Fayum Oasis, Egypt, occurrence of narrow-leaved okra 26 



Ficus, example of heteroblasty 13, 45 



Florida, occurrence of wild cotton 31 



Flowers, classification 39^0 



Foliage, application of technical terms 39-40, 44-45 



aquatic or aerial, relation to environment 42 



Galton, Francis, on law of regression 35 



Georgia, field of observations in dimorphism 36, 52 



Goebel, K., on application of terms in plant morphology '. . . 40, 41 



Gossypiura spp. Sef- Cotton. 



Greenhouse, effect of conditions on h-abits of growth 17, 18-19, 23, 27, 33-34 



Guatemala, bud mutation of coffee 32 



Hedera helix. See Ivy, English. 



Heinricher, E., on anisophylly in tropical plants 41 



Hemp. See Hibiscus cannabinus. 



Heredity, comparison of wild and cultivated species 28 



expression and transmission 28-29, 50-51 



familiar facts overlooked 10 



in animals and plants 9. 46 



Mendeloid characters 11, 26 



significance of parallel variations 27-29 



Hermaphroditism, distinguished from bisexuality 46 



Heteranthous, application of term 39 



Heteroblasty, application of term 45 



Heterophylly, application of term 39, 41, 42, 44 



Hibiscus cannabinus, example of phylloropy 39, 44 



leaf forms dimorphic specializations . 11-16, 18, 27, 37, 50-51, 52 



Hooker's description 16 



uses in Egypt 11, 16, 26 



esculentus. See Okra. 



sabdariffa, leaf forms 16 



sp., leaf forms, parallel series 7, 11, 47 



Ilomoblasty , application of term 45 



Hooker, J. I)., on description of Hibiscus cannabinus 16 



Hybridization, cause of diversity in leaves 27, 31, 52 



failure between American and Asiatic cottons 30 



Hybrids, generation, conjugate and pcrjugate 36-37 



Sec (ilso Cotton, hybrids. 



Uypojjhyll, application of term 44 



Hypsophyll, application of term 44 



India, source of variety of Hibiscus cannabinus 15, 16 



Indian corn. See Maize. 



Induction, labile and stabile, application' of terms to branches of plant.s 40 



Ingenhousia, variations of leaves ",27 



Insects, analogy in life historj- to plant forms H, 46, 47-48, 49 



Intemodes, as individuals 9, 10, 45-48 



changes affecting germ cells 50 



