XX CONTENTS. 



Vegetative and Reproductive. 



PAGE 



Chamberlain, Charles J. — Methods in Plant Histology 89 



Aase, Hankah C. — Vascular Anatomy of the Megagporophiills of Conifers .. ,. 89 



JuEL, H. O. — Gyncecium of Parinarium 90 



Dahlgrev, K. V. O. — Embryo-sac of Plumbagella 90 



Meyer, J. — Cratsego-Mespilus Graft-hybrids 91 



General. 



Wolfe, T. K. — Faseiation in Maize Eernelt 483 



Daniel, L. — Hybridation between Junglans and Corylus 483 



Paine, S. G. — Supposed Origin of Life 573 



CRYPTOGAMS. 



Pteridophyta. 



BovfER.F.O.—PhyhgenyoftheFilicales 92 



Bancroft, N. — liachiopteris cylindrica 92 



BcHOUTE, J. C. — Leaf-arrangtment in Branched Tree-ferns 93 



BtiSGEN, M. — Pteridium aquilinum 94 



CoPELAND, E. B. — Bornean Ferns 94 



Sahni, Birbal — Anatomy of Nephrolepis volubilis 208 



KiDSTON. R., & D. T. GvfTNNE-VAUGHAN— Fo«st7 OgmimJaceas 209 



HoLDEN, Ruth — Anatomy of Hybrid Equisetum 209 



HoLLOWAY, J. E. — Protocorm of Lycopodinm 209 



Edgerley, K. Y. — Prothallium of Lycopodinm 210 



Davie, R. C. — Sorus and Prothallm of Perariema 312 



Holden, H. S. — Wound Beactions in Petioles of Pteris aqiiilina 312 



a\Y,B.OT:iYmvs, G .—Pteris quadriaurita and its Allies 313 



Grandori, L. — Pteridospermeie 399 



Sampson, K. — Morpholotiyof Phyllo(jlos»um 399 



"WoDZiczKO, A. — Trichomanes Asnyldi 400- 



Sahxi, B. — Anatomy of Nephrolepi Tubers 400 



Pfeiffeb, NoNMA E. — Protludlia of Ophioglossum vulgatum 484 



Schumann, G. — Acro^ticheas and their Position in the Fern System 484 



Straszewski, H. V. — Genus Pluty cerium 485 



Benedict, R. C. — New Varieties of Nephrolepis 485 



Maxon, W. R. — Polypodium Species of Tropical America 486 



WcisT, Elizabeth D. — Branched Prothaliiu in Polypodiaceas 574 



Bryophyta. 



Kayina, K. — (Ecoijenesis of Liverworts 94 



Campbell, D. H. — Di><tr/buti<in of certain Liverworts of the Malay Region .. .. 95 



Arnell, H. W., & C.Jensen — Three critical Scandinavian Liverworts 95 



Kavina, K. — Branching (f Moss-plants 96 



Camus, F. — Most-es in Stomach of a Mammoth 96 



Dixon, H. N. — Ceylonese Mosxes 96 



Hammekschmid, A. — Mosses of Upper Bavaria 96 



