. Contributions from the Botanical Laboratory and the Morris Arboretum of the University of Pennsylvania, vol. 14. Botany; Botany. r. 1 \ I 0 '^^ m r r -f- T. JOHN AUSTIN JUMP Rt-print from Thytofathrih^y, Vol. 2«, No. 11 1938 INTENTIONAL SECOND EXPOSURE. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original University of Pennsylvania. Botanical Laboratory; University of Pennsylvania. Morris Arboretum. Philadelphia

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. Contributions from the Botanical Laboratory and the Morris Arboretum of the University of Pennsylvania, vol. 14. Botany; Botany. r. 1 \ I 0 '^^ m r r -f- T. JOHN AUSTIN JUMP Rt-print from Thytofathrih^y, Vol. 2«, No. 11 1938 INTENTIONAL SECOND EXPOSURE. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original University of Pennsylvania. Botanical Laboratory; University of Pennsylvania. Morris Arboretum. Philadelphia : [s. n. ]

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Keywords: ., bookcentury1900, bookpublisherphiladelphiasn, booksubjectbotany