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Loeske, L., Bryologische Notizen. (Herbarium 1922. Nr. 61, 121—123.) 
Malta, N., Studien über die Laubmoosgattung Zygodon Hoch, et Tayl. 2. Vegetative 
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Melin, E., Sphagnum-floran i Bjurfors och Bjömhyftans kronoparker. (Svensk bot. 
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Potier, de la Varde, R., Contribution ä la flore bryologique du döpartement de la Manche. 
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RÖ11, J., Fünfter Beitrag zur Moosflora des Erzgebirges. (Hedwigia 1923. 64, 203—227.) 
Rjuncker, T. G„ Additions and corrections to the list of Indiana mosses. (Proc. Indiana 
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Pteridophyten. 
Benedict, R. C., The progress of the Fern Society program for wild plant protection. 
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Herter, W., Lycopodiaceae philippinenses. (Philipp. Joum. Sc. 1923. 22, 57 — 76.) 
Janke, G., Adiantum-Neuheit. (Möllers Deutsch. Gärt. Ztg. 1922. 37, 86 87.) 
Marshall, M. A., Proliferous Ebony Spleenwort. (Amer. Fern Joum. 1923. 13, 7— 13; 
1 Fig.) 
Maxon, W. R., Notes on a collection of fems from the Dominican Republic. (Proceed. 
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Münz, P. A., and Johnston, J. M., The distribution of Southern California Pteridophytes. 
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Rogers, L. M., Development of the Prothallium of Lygodium palmatum. (Bot. Gazette 
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Scott, J. G., Aspidium laserpitiifolium in Pennsylvania. (Amer. Botanist 1922. 28, 
112—114; 1 Fig.) 
Wherry, E. T., Wall fems in Wilmington, North Carolina. (Amer. Fern Joum. 1923. 
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Gymnospermen. 
Anderson, M. L., Branch growth of Douglas fir. (Trans. Roy. Scottish Arbor. Soc. 1921. 
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Badoux, H., Le pin Weymouth (Pinus strobus) en Suisse. (Forts.) (Joum. Forest. Suisse 
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Douglass, A. E., Some topographic and climatic characters in the annual rings of the 
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Krauch, H., The intolerance of westem yellow pine regarded as a regulatmg factor in 
the maintenance of the type. (Joum. Forestry 1922. 20, 463 464.) 
Nash, G. V., Pinus densiflora. (Addisonia 1921. 6, 27 — 28; Taf. 206.) 
Zederbauer, E., Experiments on the storage of seeds of coniferous trees. (Trans. Roy. 
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Additions to the Index Kewensis. (Kew Bull. 1923. 120—128.) 
Alm, C. G., Nagra ord om Braya glabella Richards. (Bot. Notiser 1923. Hl 114.) 
Ames, 0., Studies in the family Orchidaceae. VI, VII. (Boston 1922. 174 u. 335 S.) 
Andrews, F. M., Trillium nivale. (Proceed. Indiana Acad. Sc. 1921. 81—86; 1 Taf., 
1 Textfig.) 
Ashe, W. W., Azalea in North Carolina. (Joum. Elisha Mitchell Soc. 1922. 38, 90—91.) 
Ballard, W. S., Magness, J. R., and Hawkins, L. A., Internal browning of the yellow 
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Blake, S. F., New Asteraceae from Utah and Nevada. (Proceed. Biol. Soc. Washington 
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