XVI CONTENTS. 



PAGE 



Bailey, J. W. — Depresged Segments of Oak Stems 367 



Alvaeado, Salustio — Detailed Structure of Wood-vessels (1 fig.) [Advance note.] 367 



Urcelay, Inan CuEfTA — Anatomy of the Leaf of Lactuca saligna Linn. (1 fig.) 36S 

 Lawbence-Balls, W. — The Existence of Daily Growth-rings in the Cell-wall of 



Cotton Hairs (^1 fig.) 369 



Reproductive. 



Evans, Arthur — Embryo-sac and Embryo of Penstemon secundiflorus 265 



Doyle, JosETU— Observations on the Morphology of Lariz leptolejns 265 



Johnson, D. S. — Fruit of Op%mtia 370 



SoCEGES, R. — Embryogenij of Capsella 370 



General. 



Racnkl-ER, C. — Statistical Investigations on Plant Formations 52 



„ — Pelatiie Number of Male aiid Female Plants in Rumex 161 



Berry, Ed. W. — Fossil Higher Plants from the Canal Zone 266 



MosHER, Edna — Grasses of Illinois .. .. 266 



Craib, \Vm. G. — Begional Spread of Moisture in the Wood of Trees 266 



CRYPTOGAMS. 



Pteridophyta. 



Benson, Margaret J. — Mazocarpon, or the Structure of Sigillariostrohis .. .. 53 



Spessard, Earle Augustus — Prothallia of Lycopodium in America 54 



OsBORN, T. G. B. — Habitat and Mode of Occurrence in South Australia of two Genera 



of Lycopods unrecorded for the State 54 



Darnell-Smith, G. P. — Gametophyte of Psilotum 54 



Lawson, A. Anstruther — Gametophyte Generation of the Psilotacex 54 



Berry, Edward W. — Notes on the Fern Gemis Clathropteris 55 



Thompson, John MaoLean — Further Contribution to the Knowledge of Plati/zoma 



microphyllum li.Br 55 



„ „ — Anatomy and Affinity of Stromatopteris moniliformis 



Mett 56 



Brown, Elizabeth Wuist — Regeneration in Phegopter is polyiodioides 56 



Steil, W. N. — New Cases of Apogamy in Ferns 56 



Capelle, G. — Botanical Observations on Various Plants , 57 



Steil, W. N. — Apospory in Pteris sulcata 1j. 161 



Hayata, Bunzo — Protomarattia, a New Genus of Marattiacex, and Archangiopteris 161 

 Leonard, Elizabeth J. — Genus Teenitis, ivith some Notes on the remairdng 



Txnitid.inx 162 



Rosendahl, H. V. — Collections of Madagascar Ferns 162 



„ „ — Species and Forms of Equisetum in Sweden 162 



EsELTiNE, G. P. Van — Allies of Selaginella rupestris in S.E. United States ■■ .. 162 



Sahni, B. — Austrcdian Specimen of Clepsydropsis 267 



Bassler, Harvey — Sporungiophoric Lepidophyte from the Carboniferous .. .. 267 



DiGBY, L. — Archesporial and Meiotic Mitoses of Osmunda 268 



Steil, \V. N. — Study of Apogamy in Niphrodiumhirtipes Hooh 268 



Phillips, R. W. — Duration of Prothallia of Lastrsea Felix-mas 269 



