. Plant studies; an elementary botany. Botany. XEEOI'HYTE SOCIETIES 193 evident that such a position avoids exposure of the leaf surface to tlie noon rays, hut obtains for these same sur- faces the morning and evening rays. If tliese plants are developed in the shade, the '"compass" habit does not. 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 Coulter, John Merle, 1851-1928. New York, D. Appleton and Company

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Keywords: ., bookcentury1900, bookdecade1900, booksubjectbotany, bookyear1900