34 
A nnals of Botany. 
24 , 518; vegetative nuclear division (*), 
24 , 515. 
Sorosphaera Veronicae, tumours on Veronica 
chamaedrys caused by (*), 24 , 35. 
Spartina Townsendii, morphology, 30 , 335 ; 
physiological anatomy (*), 30 , 336. 
Spencerites, systematic position, 23 , 379. 
Spergula arvensis, insect visitors, 22 , 628 ; 
seedling-structure, 26 , 180. 
— salina, seedling-structure, 26 , 180. 
Spermatogenesis in Blasia pusilla (*), 27 , 
93 ; in Bryophyta (*), 25 , 415 ; in Hepa- 
ticae (*), 25 , 299, 307 ; in Mnium affine 
var. ciliaris (*), 29 , 441 ; in M. hornum, 
24 , 255 ; in Polytrichum (*), 27 , 115. 
Spermogonium and fertilization in Collema, 
new type of (*), 26 , 747. 
Sphagnum, acidity of, 29 , 65 ; liberation of 
acids from their salts, 29 , 74 ; localization 
of the acid compounds, 29 , 75 ; variation 
in acidity, 29 , 78. 
— and chalk, relationship, 29 , 80. 
— and mineral solutions, relationship, 29,85. 
Sphenophyllum and Psilotum, comparison, 
22, 78. 
Sphenopteris type of foliage, a Pteridosperm 
possessing (*), 22, 57. 
Spinachia oleracea, seedling-structure, 26 , 
184. 
Spiraea, distribution of hairy species (*), 26 , 
816. 
— callosa, seedling-anatomy, 28 , 723. 
— Ulmaria, comparison with other hairy 
plants, 26 , 821; distribution and pubes- 
cence of leaves (*), 26 , 819 ; effect of en- 
vironment on hair production and palisade 
cells (*), 26 , 834 ; habit and habitats (*), 
26 , 817 ; hair formation and palisade cells, 
cause of formation, 26 , 842 ; hairs, physio- 
logical effect (*), 26 , 842 ; insect visitors, 
22, 635; leaf development (*), 26 , 830 ; 
localization of leaf withering (*), 26 , 840 ; 
seasonal differences in leaf-structure (*), 
26 , 822 ; xeromorphy (*), 26 , 852. 
Spireme in Allium Cepa, nature of the double 
(*), 28 , 271. 
Spirogyra, an attached species of (*), 27 , 
3 66. 
— occurrence, 21, 424; reproduction (*), 
21, 429 ; systematics, 21, 433. 
Spongospora Solani, preliminary note, 25 , 
272. 
— subterranea, 25 , 271 ; (*), 25 , 327 ; life- 
history (*), 25 , 329 ; vegetative phase (*), 
25 , 329 ; reproductive phase (*), 25 , 331. 
Sporangia attributed to Botryopteris antiqua 
(*), 24 , 819. 
— of Todea, production of dwarf male 
prothalli in (*), 22, 231. 
Spore development, in Gompositae (*), 26 , 
705 ; in Ipomoea (*), 25 , 200; studies in 
(*)> 27 , 643. 
Spore formation in ascus (*), 23 , 545 ; in 
Derbesia (*), 22 , 1 ; in Mnium hornum 
(*), 23 , 141. 
Sporeling of Osmundaceae, anatomy (*), 
25 , 528. 
Sporidia of Puccinia malvacearum, effect of 
external stimuli on (*), 28 , 331. 
Sporodinia grandis, cytology of zygospores 
(*), 28 , 455- 
Sporogonium of Notothylas (*), 21, 201. 
Sporophytes of Lycopodium complanatum 
and L. clavatum (*), 21 , 211. 
Spratt, E. R. : Some Observations on the 
Life-history of Anabaena Cycadeae (*), 
25 , 369. 
— The Formation and Physiological Signi- 
ficance of Root Nodules in the Podocar- 
pineae (*), 26 , 801. 
— The Morphology of the Root Tubercles 
of Alnus and Elaeagnus, and the Poly- 
morphism of the Organism causing their 
Formation (*), 26 , 119. 
— The Root-nodules of the Cycadaceae 
(*), 29 , 619. 
Squamosis of Citrus, cause, 25 , 144 ; de- 
scription (.*), 25 , 14 1 ; histology (*), 25 , 
143 ; historical, 25 , 141 ; preventive and 
remedial measures, 25 , 145. 
Stamens of Indian species of Parnassia, 
anatomy of (*), 29 , 159. 
Stangeria, seedling-structure (*), 23 , 442. 
Stapf, O. : Rediscovery of Statice arborea 
and Discovery of a New Allied Species, 
22, 115. 
Staphylea trifolia, mitosis in pollen mother- 
cells (*), 28 , 123. 
Stapledon, R. G. : On the Plant Com- 
munities of Farm Land, 30 , 16 1. 
Statice arborea, rediscovery, 22 , 115. 
— bellidifolia, anatomy and morphology (*), 
30 , 250, 276; description of species (*), 
30 , 246; habitat and oecological factors, 
30 , 240. 
— binervosa, anatomy and morphology (*), 
30 , 250, 279; description of species (*), 
30 , 246 ; habitat and oecological factors, 
30 , 240. 
— Perezii, n. sp., description, 22 , 116. 
Stauropteris burntislandica, Bensonites fusi- 
formis associated with (*), 22, 683. 
Stelar anatomy of Trichomanes javanicum 
(*), 25 , 1038. 
— development in Dipteris .(*), 25 , 761. 
Stellaria graminea, insect visitors, 22 , 628 ; 
seedling-anatomy, 26 , 180. 
— stele, insect visitors, 22, 627. 
Stellatae, morphology of stipules (*), 30 , 
197, 601. 
Stem anatomy of Umbelliferae (*), 29 , 55. 
Stenochlaena sorbifolia, description and 
phylogeny (*), 28 , 391. 
Stephens, E. L. : A Preliminary Note on 
the Embryo-sac of certain Penaeaceae, 
22, 329. 
