Seeds of Woody Plants in North America: Revised and Enlarged Edition (1992)Young, J. A., Young C. G. (1992). Seeds of Woody Plants in North America: Revised and Enlarged Edition. Dioscorides Press, Portland The revised and enlarged edition is based on Agriculture Handbook (Washington) No. 450, which is long unavailable. Data are given on the growth habit, occurrence and use of 386 genera (arranged alphabetically) with discussions of flowering and fruiting, the collection, extraction, cleaning, storage and stratification of seeds, methods of testing seed germination, and sowing practices. Both native woody plants and exotic species grown in North America are included. The extensive bibliography includes >1000 new citations; only classic citations are included from the previous editions. Plant material cannot be identified using this handbook. Appendices give common and scientific names of plants and germination characteristics by genera
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