1 4 A nnals of Botany . 
Galvanotropism of roots (*), 21, 387. 
Gametophytes of Gephalotaxus drupacea (*), 
21, 1 ; of Cupressineae (*), 21, 281 ; of 
Libocedrus decurrens (*), 21, 281; of 
Pseudotsuga Douglasii (*), 23, 163 ; of 
Sciadopitys verticillata (*), 24, 403. 
Gaseous exchanges of plants, on Bonnier 
and Mangin’s apparatus (*), 27, 565. 
Gastrodia elata and its mycorhiza, 25, 521. 
Gates, R. R. : Pollen Formation in Oeno- 
thera gigas (*), 25, 909. 
— Somatic Mitoses in Oenothera (*), 26, 
993. 
Gemmae of Metzgeria (*), 24, 273. 
Genea, description, 23, 251. 
— spp ., descriptions (*), 23, 251. 
Geographical Distribution and Natural 
Selection (*), 30, 1. 
Geophilous species of Peperomia (*), 21, 139. 
Georgevitch, P. : Preliminary Note on 
Apospory and Apogamy in Trichomanes 
Kaulfussii, Hk. et Grew. (*), 24, 233. 
Geotropic stimuli, value of different degrees 
of centrifugal force as (*), 27, 719. 
Geranium sylvaticum, insect visitors, 22, 610. 
Germination, Alsinoideae (*), 21, 42 ; double 
coco-nut (*), 24, 223 ; Helianthus annuus 
(*), 24, 693, 889 ; Marah, spp . (*), 30, 
215; spores of Coprinus sterquilinus (*), 
29, 135. 
— and electrical response, seed testing by, 
30,i8i. 
— of seeds, studies in (*), 30, 215. 
Gerry, E. : The Distribution of the * Bars 
of Sanio’ in the Coniferales (*), 24, 119. 
Geum, spp., seedling-anatomy, 28, 723. 
Gibbs, L. S. : Bio-histological Notes on some 
New Rhodesian Species of Fuirena, Hes- 
perantha, and Justicia (*), 22, 187. 
— Notes on the Development and Structure 
of the Seed in the Alsinoideae (*),21, 25. 
— On the Development of the Female 
Strobilus in Podocarpus (*), 26, 515. 
Gibson, R. H. : A Photosynthetic Theory 
of Photosynthesis, 22, 117. 
Gibson, R. J. H. : The Extent of the Root- 
system of Gucumis sativus, 26, 951. 
Gibsonia, a new genus of Ascomycetes (*), 
23, 336. 
— phaeospora, sp., description (*), 23, 336. 
Ginkgo, ribbing of seeds (*), 29, 591 ; seed- 
ling-structure (*), 23, 433. 
— and Trigonocarpus, relationship, 30, 356. 
Glands of succulents, 26, 422 ; of Undaria, 
mucilage (*), 23, 613. 
Glaucium serpieri, seedling-anatomy (*), 28, 
719. 
Glaucocystis Nostochinearum, description 
and structure (*), 29, 423. 
Gleditschia triacanthos, anatomy of leaf-fail 
(*)> 25, 79. 
Gleichenia, phyletic consideration (*), 26, 
270 ; vascular structure (*), 23, 419. 
Gluck, H. : Contributions to our Knowledge 
of the Species of Utricularia of Great 
Britain, with Special Regard to the Mor- 
phology and Geographical Distribution of 
Utricularia ochroleuca (*), 27, 607. 
Glycogen of Saccharomyces (*), 24, 61. 
Gnetales, anatomy and relationships (*), 26, 
1077 ; ancestors of, 22, 509 ; comparison 
of flowers of, 26, 979 ; seedling-structure 
(*)> 24, 319. 
— and Angiosperms, relationship (*), 22, 
489, 
— , amphisporangiate condition primi- 
tive, 22, 497 ; female gametophyte, 22, 
505; historical, 22, 492; megasporan- 
gium, 22, 504 ; microsporophylls and 
microsporangia (*), 22, 501 ; morphology, i 
22, 496 ; perianth (*), 22, 498 ; strobili, 
aggregates of, 22, 500. 
Gnetopsis elliptica, comparison with Cono- 
stoma (*), 25, 31. 
Gnetum, comparison of female flower with 
that of Welwitschia, 25, 1124; com- 
parison of seeds with those of Bennettitales, 
25, 1125 ; inflorescence axis structure, 26, 
621 ; microsporangium, microspore, and 
structure of inflorescence (*), 26, 603. 
— spp., seedling-structure (*), 24, 326. 
— africanum, anatomy of inflorescence axis 
and cupule (*), 25, 1103; anatomy of 
stalk of ovule (*), 25, mo; external 
characters, 26, 593 ; inflorescence and 
ovule, morphology (*), 25, 1102; leaf- 
structure (*), 26, 598 ; ovule development 
(*), 25, 1 1 18; seed (*), 25, 1112; j 
stem-structure (*), 26, 594- 
— Gnemon, stoma development (*), 27, 
365 ; structure of female strobilus (*), | 
26, 987. 
— scandens, anatomy of inflorescence axis i 
and cupule (*), 25, 1103; anatomy of 
stalk of ovule (*), 25, 1 1 10 ; inflorescence 
and ovule, morphology (*), 25, 1102; 
male inflorescence, abortive ovule (*), 25, t 
1123; ovule development (*), 25, 1118; J 
seed, 25, 1118. 
Gnomonia erythrostoma, appearance of 1 
affected leaves, 24, 586 ; cytology of 
ascus (*), 24, 596 ; mycelium (*), 24, 
587 ; perithecium development (*), 24, 
594 ; spermogonia (*), 24, 589 ; tricho- 
gynes and ascogonia (*), 24, 591. 
Gomphrena, spp., seedling-structure, 26, 182. 
Goniothalamus, symbiosis with ants, 24, 461. 
Gordon, W. T. : Note on the Prothallus of 
Lepidodendron Veltheimianum (*), 24, 
821. 
Gossypium, nuclear division (*), 24, 656. 
Graham, M. : Studies in Nuclear Division 
of Preissia commutata (*), 27, 661. 
Graminaceae, vitality and self-digestion of 
endosperm, 22, 449. 
Gramineae, comparative morphology of the 
