520 



STUDIES IN SEEDS AND FRUITS 



drying process, 262, 269, 321, 

 323, 326, 485, 486 ; the drying 

 regime and the requisite data, 

 323, 326 ; proportions of pericarp 

 and seeds, 298, 323, 326, 331, 

 336-339- 

 Guilandina (glabra ?), seeds : imperme- 

 abihty, 93 ; water-contents and 

 absorptive capacity, 118, 135; 

 swelHng process, 25, 201, 211 ; pro- 

 portions of coats and kernel, 189, 

 201. (The specific name is not 

 given on pages 25 and 211.) 

 melanosperma, 25, 93. 

 Gulf Stream, dispersal of seeds, 13, 103. 



Haeckel, on cosmic evolution, 456, 457, 

 460. 



Hairs of seeds : effect on hygroscopicity, 

 168, 169, 178 ; effect on propor- 

 tional weight of seed-coats, 188, 

 190, 191, 193-195,221,497. 



Hall, Van, 504. 



Hanlein, 60. 



Hart, on the ti'ansient vitality of palm 

 seeds, 12, 413, 418. 



Hazel : see Corylus Avellana. 



Hedera Helix (Ivy) : growth of embryo 

 in the winter and the implied vivi- 

 pary, 11, 271, 272, 4^7-432, 439; 

 weight of embryo, 408 ; shrinking 

 and swelling of seeds, 25, 41 ; dry- 

 ing of fruit, 264, 269, 271, 272, 326 ; 

 proportions of pericarp and seeds, 

 298, 326 ; proportions of coats and 

 kernel, 408. 

 poetarum, 432. 



Helianthus, 27. 



Hemp, 27. 



Heredity, laws of, 448. 



Hibiscus elatus, 25, 95, 191, 508 ; the last 

 under the synonym of Paritium 

 elatum. 

 esculentus, 25, 95, 191, 327, 497. 

 Sabdarifa, 25, 95, 190. 

 tiliaceus, 508. 



High temperature, effect on seeds, 138- 

 144, 146, 235. 



Hoffmann, on swelling of seeds, 23, 27, 

 28, 34,44, 52, 465 ; on hygroscopicity, 

 173- 



Hog-doctor, 508. 



Hog-gum, 3. 



Hog-plum, 507. 



Homologies of fruits, 10, 11, 241-272. 



Honeysuckle : see Lonicera. 



Hordeum vulgare, 27. 



Horse-chestnut : see yEsculus Hippo- 



castanum. 

 Hura crepitans : 



{a) Seed : permeability, 95 ; hygro- 

 scopicity, 125, 164; water-con- \ 

 tents and absorptive capacity, I 

 137, 215 ; shrinking and swell- " 

 ing process, 25, 201, 208, 211, 

 2 1 2, 2 1 9, 32 1 , 49 1 ; shrinking and 

 swelling regime, 219, 491 ; the 

 special difficulty connected with 

 the growth of coats and kernel, 

 208, 223, 490-492 ; the influence 

 of oil on the shrinking and swell- 

 ing process, 208, 2 1 4, 49 1 ; drying 

 of seed swollen for germination, 

 469, 470 ; proportions of coats, 

 albumen, and embryo, 190, 201, 

 219, 409, 470 ; embryo, 219, 393, 

 401, 409, 470. 

 {b) Fruit : drying process, 263, 265, 

 269, 290, 319, 321, 325, 497; 

 data for determining the drying 

 regime, 325 ; drying of entire 

 fruit, 290 ; dehiscence, 289, 290, 

 292; proportionsof pericarp and 

 seeds, 297, 300, 325. 

 Hygrometer : suitability of pods of Cassia 



fistula, 175. 

 Hygroscopicity : general treatment, 

 147-186 ; as concerns the distinc- 

 tion between permeable and imper- 

 meable seeds, 70-88, 98, 99, 226- 

 240 ; hygroscopic range of seeds, 

 158-162, 235-237, 240; hygroscopic 

 range of dry legumes, 174-176, 179; 

 Leo Errera on the forms of hygro- 

 scopicity, 147, 477; incidental refer- 

 ences, 46, 66, 68. 

 Hyophorbe Verschafftii : shrinking of 

 seed, 26, 321, 326; embryo, 408, 

 413 ; drying of fruit, 264, 321, 326 ; 

 proportions of pericarp and seed, 

 298, 326. (The same species is 

 implied where the generic name is 

 alone given.) 

 Hypericum Androsaemum, 263, 387. 

 Hypocotyl, colour of, 393, 394, 401. 



Ihmori, 147. 



Impermeable seeds : general treatment, 

 56-146 ; absence of hygroscopic re- 

 action, 70, 162-164, 178; behaviour 

 in time, 226-231 ; Dr Cola's experi- 

 ments, 107-111,476; Prof. Ewart's 



