The elements of botany for The elements of botany for beginners and for schools elementsofbotany00grayuoft Year: [1887] Bellwort (Uvularia perfoliata, V'lg. 162) is a familiar illustration. The lower and earlier leaves show it distinctly. Later, the plant is apt to produce some leaves merely clasping the stem by tlie sessile and heart-shaped base, and the latest may be merely sessile. So the series explains the peculiarity : jg^ in the formation of the leaf the bases, meeting around the stem, grow together tiiere. 159. Connate-perfoliate. Such are the upper leaves of true Honey- suckles. Here
The elements of botany for The elements of botany for beginners and for schools elementsofbotany00grayuoft Year: [1887] Bellwort (Uvularia perfoliata, V'lg. 162) is a familiar illustration. The lower and earlier leaves show it distinctly. Later, the plant is apt to produce some leaves merely clasping the stem by tlie sessile and heart-shaped base, and the latest may be merely sessile. So the series explains the peculiarity : jg^ in the formation of the leaf the bases, meeting around the stem, grow together tiiere. 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 tlie course of their formation uuite around the stem, which thus seems to run tlirough the disk formed by their union. 160. Equitant Leaves. Wliile ordinary leaves spread horizontally, and present one face to the sky and the other to the eartli, there are some that present their tip to the sky, and their faces right and left to the horizon. Among these are the eqnitant leaves of the Iris or FIower-de-Luce. In- spection shows that each leaf was formed as \{ folded together lengthwise., Fig. 162. A summer branch of Uvularia perfoliata; lower leaves perfoliate, upper cordate-clasping, uppermost simply sessile. Fig. 163. Branch of a Honeysuckle, with connate-perfoliate leaves. Fig. 164. Rootstock and equitant leaves of Iris. 165. A section across the cluster of leaves at the bottom, showing the equitation.
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