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CONTENTS. 
No. LXI, March, 1902. 
Vines, S. H. — Tryptophane in Proteolysis ...... 
Lang, W. H. — On the Prothalli of Ophioglossum pendulum and 
Helminthostachys zeylanica. With Plates I, II, and III 
Massee, G., and Salmon, E. S. — Researches on Coprophilous Fungi. 
II. With Plates IV and V . 
Ford, Miss S. O. — The Anatomy of Ceratopteris thalictroides (L.). 
With Plate VI, and eight Figures in the Text 
Gager, C. S. — The Development of the Pollinium and Sperm-cells in 
Asclepias Cornuti, Decaisne. With Plate VII 
Thiselton-Dyer, Sir W. T. — Morphological Notes. V and VI. 
Abnormal Fruits. With Plates VIII and IX 
NOTES. 
Tansley, A. G., and Lulham, Miss R. B. — On a new Type of Fern- 
stele, and its probable phylogenetic Relations. With ten 
Figures in the Text ........ 
Thomas, A. P. W. — An Alga-like Fern-prothallium .... 
Gwynne-Vaughan, D. T. — On an unexplained Point in the Anatomy 
of Helminthostachys zeylanica. With a Figure in the Text. 
Hill, T. G. — On Secondary Thickening in Angiopteris evecta . 
Biffen, R. H. — Note on some Grafting Experiments 
Fritsch, F. E. — The Affinities and Anatomical Characters of Plagio- 
pteron fragrans, Griff 
Boodle, L. A. — On Lignification in the Phloem of Helianthus annuus 
No. LXII, June, 1902. 
Yapp, R. H. — Two Malayan ‘ Myrmecophilous ’ Ferns, Polypodium 
(Lecanopteris) carnosum (Blume), and Polypodium sinuosum, 
Wall. With Plates X, XI, and XII 
Ward, H. M. — On the Relations between Host and Parasite in the 
Bromes and their Brown Rust, Puccinia dispersa (Erikss.) 
Hill, T. G. — On Variation in the Flowers of certain Species of 
Primula. With a Figure in the Text ..... 
Copeland, E. B. — The Mechanism of Stomata. With Plate XIII . 
Thiselton-Dyer, Sir W. T. — Morphological Notes. VII. Dis- 
chidia rafflesiana. With Plates XIV and XV 
Farmer, J. B., and Hill, T. G. — On the Arrangement and Structure 
of the Vascular Strands in Angiopteris evecta, and some other 
Marattiaceae. With Plates XVI, XVII, and XVIII, and 
a Diagram .......... 
NOTES. 
Fritsch, F. E. — Algological Notes. I. Observations on Species of 
Aphanochaete. With a Figure in the Text .... 
II. The Germination of the Zoospores in Oedogonium. With 
a Figure in the Text ....... 
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