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		Phylogeny and classification of the orchid family / Robert L. Dressler. by Dressler, Robert L, 1927- Material type: Text; Format: print ; Literary form: Not fiction Publication details: Portland, Or. : Dioscorides Press, c1993 Availability: Items available for loan: Nash Library (1)Call number: QK495.O64D7 1993.
		Field guide to the orchids of Costa Rica and Panama / Robert L. Dressler. by Dressler, Robert L, 1927- Material type: Text; Format: print ; Literary form: Not fiction Publication details: Ithaca : Comstock Pub. Associates, 1993 Availability: Items available for loan: Nash Library (1)Call number: QK495.O64D68 1993.
		The orchids : natural history and classification / Robert L. Dressler. by Dressler, Robert L, 1927- Material type: Text; Format: print ; Literary form: Not fiction Publication details: Cambridge, Mass. : Harvard University Press, 1981 Availability: Items available for loan: Nash Library (1)Call number: QK495.O64D69.
		No cover image available Orchids of Panama : a facsimile reprint of the Orchidaceae, flora of Panama / by Louis O. Williams and Paul H. Allen. With, A checklist of the orchids of Panama as known today / by Robert L. Dressler. by Williams, Louis Otho, 1908- Allen, Paul Hamilton, 1911-1963 Dressler, Robert L, 1927- Series: Monographs in systematic botany from the Missouri Botanical Garden ; v. 4. Material type: Text; Format: print ; Literary form: Not fiction Publication details: [St. Louis, Mo.] : Missouri Botanical Garden, 1980 Availability: Items available for loan: Nash Library (1)Call number: QK495.O64M57.