ANNALS OF BOTANY, Vol. XXI. 
No. LXXXI, January, 1907, contains the following Papers and Notes: — 
Lawson, Anstruther A.- The Gametophytes, Fertilization and Embryo of Cephalotaxus dru- 
pacea. With Plates I-IV. 
Gibbs, L. S. — Notes on the Development and Structure of the Seed in the Alsinoideae. With 
Plates V and VI and four Figures in the Text. 
Bergtheil, C., And Day, D. L. — On the Cause of ‘ Hardness ’ in the Seeds of Indigofera arrecta. 
With Plate VII. 
M c NlC0L, Mary. — The Bulbils and Pro-embryo of Lamprothamnus alopecuroides. With Plate VIII. 
Hemsley, W. Botting. — Two new Triuridaceae, with some Remarks on the Genus Sciaphila, 
Blume. With Plates IX and X. 
Brown, Adrian J. — On the Existence of a Semi-permeable Membrane enclosing the Seeds of 
some of the Gramineae. 
Scott, D. H., and Maslen, A. J. — The Structure of the Palaeozoic Seeds, Trigonocarpus 
Parkinsoni, Brongniart, and Trigonocarpus Oliveri, sp. nov. Part I. With Plates XI-XIV. 
NOTES. 
Ewart, A. J. — The Delayed Dehiscence of Callistemon rigida, R.Br. 
Ellis, David. — On the Constancy of Cilia-insertion in Bacteriaceae. 
No. LXXXII, April, 1907, contains the following Papers and Notes : — 
Hill, A. W.- — A Revision of the Geophilous Species of Peperomia, with some additional Notes on 
their Morphology and Seedling Structure. With Plate XV. 
Farmer, J. Bretland, and Digby, L. — Studies in Apospory and Apogamy in Ferns. With 
Plates XVI-XX. 
Lang, W. H. — On the Sporogonium of Notothylas. With Plate XXI. 
Wigglesworth, Grace. — The Young Sporophytes of Lycopodium complanatum and Lycopodium 
clavatum. With Plate XXII and four Diagrams in the Text. 
FRITSCH, F. E. — The Subaerial and Freshwater Algal Flora of the Tropics. A Phytogeograpliical 
and Ecological Study. 
Stopes, M. C. — A Note on Wounded Calamites. With Plate XXIII and four Diagrams in the 
Text. 
Lawson, A. A. — The Gametophytes and Embryo of the Cupressineae, with special reference to 
Libocedrus decurrens. With Plates XXIWXXVI. 
NOTES. 
Oliver, F. W. — Note on the Palaeozoic Seeds, Trigonocarpus and Polylophospermum. 
Beer, Rudolf. — The Supernumerary Pollen-grains of Fuchsia. 
Fraser H. C. I. — Contributions to the Cytology of Humaria rutilans, Fr. 
No. LXXXIII, July, 1907, contains the following Papers and Note : — 
Mottier, David M. — The Development of the Heterotypic Chromosomes in Pollen Mother-cells. 
With Plates XXVII and XXVIII. 
Fraser, H. C. I. — On the Sexuality and Development of the Ascocarp in Lachnea stercorea, Pers. 
With Plates XXIX and XXX. 
CLARKj A. M. — Secondary Thickening in Kendrickia Walkeri, Hook. f. With Plate XXXI. 
HlCKLlNG, George. — The Anatomy of Palaeostachya vera. With Plates XXXII and XXXIII, 
and four Figures in the Text. 
Bayliss, Jessie S. — On the Galvanotropism of Roots. With four Figures in the Text and two 
Curves. 
Priestly, J. H., and Irving, Annie A. — The Structure of the Chloroplast considered in 
Relation to its Function. With two Figures in the Text. 
Ridley, H. N.— Branching in Palms. With Plates XXXIV-XXXIX. 
Fritsch, F. E., and Rich, Florence. — Studies on the Occurrence and Reproduction of British 
Freshwater Algae in Nature. I. Preliminary Observations on Spirogyra. With eleven Figures 
in the Text. 
NOTE. 
Scott, Daisy G.— On the Distribution of Chlorophyll in the Young Shoots of Woody Plants. 
Indexes to the Annals of Botany. Prepared by T. G. Hill, under the direction 
of the Editors. Royal 8vo. (1) Vols. I-X. (2) Vols. XI-XX. Each Paper covers, 5s. 
to subscribers ; to non-subscribers, 9s. ; Morocco back, to subscribers, 6s. ; to non- 
subscribers, 10s. 6 d. 
