. The elements of botany for beginners and for schools. Botany. Bell-wort (Uvularia perfoliata, Fig 162) is a familiar illustration. The '"C-^i lower and earlier leaves show it distinctly. Later, the plant is apt to produce some leaves merely clasping the stem by the sessile and heart-shaped base, and the latest may be merely sessile. So the series explains the peculiarity : in the formation of the leaf the bases, meeting around the stem, grow together there. 159. Connate-perfoliate. Such are the upper leaves of true Honey- suckles. Here (Fig. 163) of the opposite and sessile leaves, some
. The elements of botany for beginners and for schools. Botany. Bell-wort (Uvularia perfoliata, Fig 162) is a familiar illustration. The '"C-^i lower and earlier leaves show it distinctly. Later, the plant is apt to produce some leaves merely clasping the stem by the sessile and heart-shaped base, and the latest may be merely sessile. So the series explains the peculiarity : in the formation of the leaf the bases, meeting around the stem, grow together there. 159. Connate-perfoliate. Such are the upper leaves of true Honey- suckles. Here (Fig. 163) of the opposite and sessile leaves, some pairs, especially the uppermost, in the course of their formation unite around the stem, which thus seems to run through the disk formed by their union. 160. Equitant Leaves. While ordinary leaves spread horizontally, and present one face to the sky and the other to the earth, there are some that present their tip to the sky, and their faces right and left to the liorizon. Among these are the equitant leaves of the Iris or Flower-de-Luce. In- spection shows that each leaf was formed as '\l folded together lenffthwise. Fig. 162. Asiinuner branch of Uvularia perfoliata; lower leaves perfoliate, upper cordate-clasping, uppermost simply sessile. Fig. 1G3. Brancli of a IToiieysuckle, with coniiate-perfoliate leaves. Fig. 164. Rootstock and equitant leaves of Iris. 16,'j. A .section across the cluster of leaves at the bottom, showing the 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 Gray, Asa, 1810-1888. New York : American Book Company
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectbotany, bookyear1887
