. Class-book of botany: being outlines of the structure, physiology and classification of plants; with a flora of the United States and Canada. Botany; Plants; Plants. 62 OP TEXTURE AND SURFACE. compound in all stages. The leaves of the honey-locust and coffee tree (Gymno- cladus) often afford curious and instructive examples. 291. A biternate leaf is formed when the leaflets of a ternate leaf give place themselves to ternate leaves, and triternate when tbe leaflets of a biternate leaf again give place to ternate leaves. 292. Palmately compound. A distinction. The palmate vena- tion has also i
. Class-book of botany: being outlines of the structure, physiology and classification of plants; with a flora of the United States and Canada. Botany; Plants; Plants. 62 OP TEXTURE AND SURFACE. compound in all stages. The leaves of the honey-locust and coffee tree (Gymno- cladus) often afford curious and instructive examples. 291. A biternate leaf is formed when the leaflets of a ternate leaf give place themselves to ternate leaves, and triternate when tbe leaflets of a biternate leaf again give place to ternate leaves. 292. Palmately compound. A distinction. The palmate vena- tion has also its peculiar forms of compound leaves, as ternate, quinate, septinate, etc., according to the number of leaflets which arise together from the summit of the petiole. Ternate leaves of this venation are to be carefully distinguished from those of the pinnate plan. The pal- mately ternate leaf consists of three leaflets, which are either all sessile or stalked alike; the pinnately ternate has the terminal leaflet raised above the other two on the prolonged rachis (157, 158). 172 1T1. Insertion of leaves. 170, Aster oblongifolius 1 (amplexicaul). 171, Uvularia perfoliate. 172, Lonicera sempervirens, (connate). With regard to the insertion the leaf is said to be 293. Amplexicaul, when its base lobes adhere to and clasp tho stem. Should these lobes extend quite around the stem and become blended too-ethcr, on the other side a perfoliate leaf will be formed (per, through, folium, leaf), the stem seeming to pass through the leaves. 294. Connate denotes that the bases of two opposite leaves are united so as to form one piece of the two. OF TEXTURE AND SURFACE. In descriptive botany it is also needful to regard the variations of leaves in tho above respects. The terms which we briefly notice below are equally applicable to any other Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearan
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