Index to Vols. XXI-XXX. 
l 3 
Ferdinandsen, C., and Winge, O. : Osten- 
feldiella, a New Genus of Plasmodio- 
phoraceae (*), 28 , 643. 
Fermentation by Saccharomyces, thermal 
phenomena, 28 , 217. 
Ferns, apogamy and apospory (*), 21 , 16 r ; 
cavity parenchyma and thyloses (*), 22, 
401 ; cytology of hybrid and varietal (*), 
24 , 191 ; nature of tracheae (*), 22, 517 ; 
phyletic relation, 26 , 31 1. 
I Fertile stem and cone of Equisetum, anatomy 
(*), 29 , 231. 
I Fertilization of Gephalotaxus drupacea (*), 
21 , 1 ; of Collema (*), 26 , 747 ; in Ephedra 
altissima (*), 28 , 509 ; in Lilium (*), 27 , 
hi. 
I Ficus Carica, anatomy of leaf-fall, 25 , 89. 
Filicales, phylogenv (*). 24 , 423 ; 26 , 269 ; 
27 , 443 i 28 , 363 ; 29 . 495. 
Filicinean leaf-trace evolution (*), 25 , 167; 
petiolar wound reactions (*), 26 , 777. 
Fischer, G. C. E. : On the Development of 
the Fructification of Armillaria mucida, 
Schrad. (*), 28 , 503. 
— The Biology of Armillaria mucida, 
Schrad. (*), 23 , 515. 
Fixing and other reagents, action on cell (*), 
28 , 623. 
.Flora, alterations of, due to climatic changes, 
30 , 557. 
Florideae of Tropics, freshwater, 21 , 268. 
Flowers and Insects in Great Britain, 22 , 
603. 
Foliar gaps in Osmundaceae (*), 24 , 107. 
— ray of dicotyledonous wood, diffusion, 26 , 
653 ; evolution (*), 26 , 647 ; roots (*), 
26 . 655 ; reduction (*), 26 , 653 ; traumatic 
regions (*), 26 , 655 ; twigs (*), 26 , 654, 
656. 
Formaldehyde, quantitative experiments on 
effect of, on living plants (*), 27 , 41 1. 
— question, the, 27 , 426. 
Forsythia Fortunei, anatomy of leaf-fail, 25 , 
77 . 
Fortunea chinensis, seedling-structure (*), 
30 , 587. 
Fossil flora of Eastern Canada (*), 27 , 243. 
Fossombronia, discharge of antherozoids (*), 
23 , 159. 
Fragaria indica, seedling-anatomy, 28 , 723. 
— vesca, insect visitors, 22, 624. 
Fraser, H. C. I.: Contributions to the 
Cytology of Humaria rutilans, 21 , 307. 
— Contributions to the Cytology of Humaria 
rutilans, Fries. (*), 22 , 35. 
— On the Sexuality and Development of the 
Ascocarp in Lachnea stercorea, Pers. (*), 
21, 349. 
— (Mrs. Gwynne-Vaughan) : The Beha- 
viour of the Chromatin in the Meiotic 
Divisions of Vicia Faba (*), 28 , 633. 
The Development of the Ascocarp in 
Lachnea cretea (*), 27 , 553. 
Fraser, H. C. I., and Brooks, W. E. 
St. J. : Further Studies on the Cytology 
of the Ascus (*), 23 , 537. 
— and Snell, J. : The Vegetative Divisions 
in Vicia Faba (*), 25 , 845. 
— and Welsford, E. J.: Further Contri- 
butions to the Cytology of the Ascomycetes 
(*)> 22, 465. 
Fraser, M. T. : Parallel Tests of Seeds by 
Germination and by Electrical Response 
(Preliminary Experiments), 30 , 181. 
F raxinus excelsior, anatomy of leaf-fall, 25 , 
98 ; phyllotaxy, abnormal, 29 , 307. 
Fritsch, F. E. : The Morphology and 
Ecology of an Extreme T errestrial Form 
of Zygnema (Zygogonium) ericetorum, 
(Kuetz.) Hansg. (*), 30 , 135. 
— • The Subaerial and F resh water Algal Flora 
of the T ropics. A Phytogeographical 
and Ecological Study, 21 , 235. 
— and Rich, F. : Studies on the Occurrence 
and Reproduction of British Freshwater 
Algae in Nature. I. Preliminary Obser- 
vations on Spirogyra (*), 21 , 423. 
— and Takeda, H. : On a Species of Chla- 
mydomonas (C. sphagnicola, F. E. Fritsch 
andTakeda — Isococcus sphagnicolus, F. E. 
Fritsch) (*), 30 , 373. 
Fuchsia, supernumery pollen-grains, 21 , 305. 
— serratifolia, pollination and respiratory 
activity, 21, 490. 
Fuirena oedipus (*), 22 , 189; histology of 
aerial stem (*), 22, 190 ; of basal internode 
(*), 22, 191 ; of leaf (*), 22, 192 ; of 
rhizome (*), 22, 187. 
— stricta and subdigitata, leaf-structure, 22, 
192. 
Fujli, K. : see Stopes, M. C. 
Fungi, on parasitic (*), 24 , 359. 
Fungus spores and their germination studied 
by dark-ground illumination (*), 28 , 61 1. 
G. 
Gaillardia aristata, seedling-structure, 28 , 
316. 
— . Lorenziana, elaioplasts (*), 23 , 63. 
Galinsoga parviflora, seedling-structure, 28 , 
3 i 5 . 
Galium, spp., insect visitors, 22 , 642. 
— morphology of stipulus (*), 30 , 197, 60 r. 
Gallagher, W. J. : The Cytology of 
Rhoeo discolor, 22, 117. 
Galtonia, heterotypic chromosomes in pollen 
mother-cells, 21, 329. 
— candicans, chromatin bodies, origin from 
nucleolus (*), 23 , 495 ; from presynaptic 
framework (*), 23 , 493 ; from synaptic 
knot (*), 23 , 492. 
meiotic divisions (*), 24 , 736, 746 ; 
presynapsis (*), 23 , 491 ; somatic and pre- 
meiotic divisions (*), 24 , 728 ; synapsis 
(*), 23 , 491 ; walls of pollen mother-cells 
(*), 23 , 494- 
