XXIV 
CONTENTS. 
Petit, L . — Petiole of Phanerogams 
Oger, A . — Action of Humidity of Soil on Structure of Stem and Leaves . . 
Groom, P . — Thorns of Randia dumetorum 
Nobbe, F., & others — Root-tubercles of Elxagnus and of the Leguminosx 
Bertrand, G., & G. Poirault — Colouring-matter of Pollen 
Aufrecht, S. — Extra-floral Nectaries 
Berlese, A. N . — Seeds of the Ampelidex 
Micheels, H . — Embryo of Palms 
Bruns, E . — Embryo of Grasses 
Groom, P . — Embryo of Petrosavia 
Schumann, K . — Phyllotaxy 
Wagner, A . — Leaves of Alpine Plants 
Geneau de LamarliIjre, L . — Leaves developed in the Sun and in the Shade 
Schenck, H . — Lianes 
Schimper, A. F. W , — Flora of the Indo-malayan Coasts 
Masters, M. T . — Inversion of Organs or Tissues 
Hartmann, T . — Structure of Witch-broom 
Baroni, E. — Pollen-grains of Papaveracex 
Guignard, L., & others — Development of the Integument of the Seed 
Lalaune, G . — Anatomical Characters of Persistent Leaves 
Groom, P . — Influence of External Conditions on the Form of Leaves 
Balicka-Iwanowska, & H. Ross — Leaves of Iridese 
Heinricher, E . — Structure of Lathrxa 
Berwick, T . — Cotyledonary Glands of Rubiacex 
C hod at, R., & R. Zollikofer — Capitate Hairs with Vibratile Filaments 
Groom, P . — Velamen of Orchids 
Maxwell, F. B . — Roots of Ranunculacese 
Clos, D . — Passage of Organs into one another 
Curtiss, C. C. — Seeds of Orchidex 
GrTtter, W . — Testa of the Seed of Lythrariex 
Rowlee, W. W . — Achenes and Seedlings of Compositx 
Borzi, A . — Biology of the Pericarp 
Noelle, A. 0 . — Structure of Runners and Stolons 
Winkler, A . — Cotyledons of Tropxolum 
Huth, E. — Wool-climbers 
Duchartre, P . — Prickles of Rosa sericea 
Keller, Ida A . — Glandular Hairs of Brasenia , 
Nobbe, F., & others — Root-tubercles of Elxagnus angustifolius 
Chatin, A . — Multiplicity of Homologous Parts , . 
Paoletti, G . — Epicalyx of Tofieldia 
True, R. H . — Development of the Caryopsis 
Nestler, A. — Floating-apparatus of the Fruit of Proteacex 
„ „ Leaves of Ranunculacex 
Groom & others — Pitchers of Dischidia 
Groom, P. — Bud-protection in Dicotyledons 
Holzinger, J. M. — Winter-buds of Utricularia 
Thomas, M. B . — Rhizome of Corallorhiza 
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Part 6 
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/3. Physiology. 
(1) Reproduction and Embryology. 
Mann, G. — Embryo-sac of Myosurus Part 1 64 
Schulz, A. — Sexual Organs of Flowers „ 65 
Millardet, A., & S. A. Beach — Hybridization of the Vine „ 65 
