来源：New York Botanical Garden, LuEsther T. Mertz Library contributed to BHL , 5, 1919-1920卷 , 1919

作者:University of Pennsylvania. Botanical Laboratory.

关键词:Pennsylvania;Plants;...

使用许可:Unknown

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来源：U.S. Department of Agriculture, National Agricultural Library contributed to BHL , 1889卷 , 1889

作者:Wilson, Samuel.@@Henry G. Gilbert Nursery and Seed Trade Catalog Collection.@@Samuel Wilson (Firm)

关键词:Catalogs;Seeds;...

使用许可:Unknown

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来源：U.S. Department of Agriculture, National Agricultural Library contributed to BHL , 1906卷 , 1906

作者:Wm. C. Beckert (Firm)@@Beckert, Wm. C.@@Henry G. Gilbert Nursery and Seed Trade Catalog Collection.

关键词:Pennsylvania;Seeds;...

使用许可:Unknown

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来源：U.S. Department of Agriculture, National Agricultural Library contributed to BHL , 1894卷 , 1894

作者:Meehans' Nurseries.@@Meehan, J. Frank.@@Meehan, S. Mendelson.@@Meehan, Thomas B.@@Meehan, Thomas.@@Henry G. Gilbert Nursery and Seed Trade Catalog Collection.@@Thomas Meehan & Sons.

关键词:Pennsylvania;Nurseries (Horticulture);...

使用许可:Unknown

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来源：U.S. Department of Agriculture, National Agricultural Library contributed to BHL , 1894卷 , 1894

作者:Henry G. Gilbert Nursery and Seed Trade Catalog Collection.@@Johnson & Stokes.

关键词:Seed industry and trade;Philadelphia;...

使用许可:Unknown

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来源：MBLWHOI Library contributed to BHL , no.6卷 , 1951

作者:Jennings, Otto Emery, 1877-1964

关键词:Pennsylvania;Mosses

使用许可:Unknown

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