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	1.		No cover image available Reconstructions of Archaeopteris, and further consideration of its phylogenetic position / Charles B. Beck. by Beck, Charles B, (1927- ) Material type: Text; Format: print ; Literary form: Not fiction Publication details: [S.l. : Botanical Society of America], 1962 Availability: Items available for loan: Biblioteka Instytutu Botaniki im. W. Szafera PAN (1)Call number: Brosz. 176. Place hold Request article Add to cart (remove)
	2.		No cover image available Plants of the New Albany shale. [P.] 2, Callixylon arnoldii sp. nov. / Charles B. Beck. by Beck, Charles B, (1927- ) New York Botanical Garden [pbl] Material type: Text; Format: print ; Literary form: Not fiction Publication details: [New York : New York Botanical Garden], 1962 Other title: Callixylon arnoldii sp. nov. Availability: Items available for loan: Biblioteka Instytutu Botaniki im. W. Szafera PAN (1)Call number: Brosz. 354. Place hold Request article Add to cart (remove)

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