. Contributions from the Botanical Laboratory, vol. 11. Botany; Botany. Bartonia, No. 15 Plate 1 Reprinted from Bartonia, No. 15, 1933. 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