. Plant studies; an elementary botany. Botany. FOLIAGE LEAVES : THE LIGHT-RELATIOX 11. Fig. 4. Two sensitive plants, showing ttie motile leaves. The plant to the left has its le;i\es and numerous leaflets expanded ; the one to the right shows the leaflets folded together and the lea\'e8 drooping.—After Kehnf:h. the morning and evening (see Fig. 170). As a result, the ape-Y of tlie leaf points in a general north or south direction. It is a significant fact thtit when the ^ilant grows in shaded places the leaves do not assume any such position. It seems evident, therefore, that the j)Osition has
. Plant studies; an elementary botany. Botany. FOLIAGE LEAVES : THE LIGHT-RELATIOX 11. Fig. 4. Two sensitive plants, showing ttie motile leaves. The plant to the left has its le;i\es and numerous leaflets expanded ; the one to the right shows the leaflets folded together and the lea\'e8 drooping.—After Kehnf:h. the morning and evening (see Fig. 170). As a result, the ape-Y of tlie leaf points in a general north or south direction. It is a significant fact thtit when the ^ilant grows in shaded places the leaves do not assume any such position. It seems evident, therefore, that the j)Osition has something to do with avoiding the danger of too intense light. It. 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
Size: 1439px × 1737px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectbotany, bookyear1900
