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Pteridologist - British Pteridological Society. (The Society, 1998)

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Pteridologist - British Pteridological Society. (The Society, 2002)

Pteridologist - British Pteridological Society. (The Society, 2003)

Pteridologist - British Pteridological Society. (The Society, 2006)

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Pteridologist - British Pteridological Society. (The Society, 2011)

Pteridologist - British Pteridological Society. (The Society, 2013)

Pteridologist - British Pteridological Society. (The Society, 2014)

Pteridologist - British Pteridological Society. (The Society, 2015)

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Pteridologist - British Pteridological Society. (The Society, 2018)

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qing zang zi ran di li zi liao - Xu, Jinzhi 徐近之 (ke xue chu ban she)

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Rare plants of New York State - Mitchell, Richard S., 1938 - (New York State Museum, University of the State of New York, State Education Dept, 1981)

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Reisen in Bosnien und der Hertzegowina - Kiepert, Heinrich, 1818 -1899 (D. Reimer, 1877)

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Remarks on the so-called woody and vascular tissues of ferns - Ogilvie, George, 1820 -1886 (Taylor and Francis, 1860)

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Retail price list of California bulbs - Purdy, Carl (Firm) (Carl Purdy, 1920)

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Revisio generum plantarum vascularium omnium atque cellularium multarum secundum leges nomenclaturae internationales cum enumeratione plantarum exoticarum in itinere mundi collectarum, mit erläuterungen - Kuntze, Otto, 1843 -1907 (A. Felix [etc., etc.], 1891)

Revisio generum plantarum:vascularium omnium atque cellularium multarum secundum leges nomenclaturae internationales cum enumeratione plantarum exoticarum in itinere mundi collectarum ... - Kuntze, Otto, 1843 -1907 (A. Felix [etc.], 1891)

Revisio generum plantarum:vascularium omnium atque cellularium multarum secundum leges nomenclaturae internationales cum enumeratione plantarum exoticarum in itinere mundi collectarum ... - Kuntze, Otto, 1843 -1907 (A. Felix [etc.], 1898)