. The elements of structural botany [microform] : with special reference to the study of Canadian plants, to which is added a selection of examination papers. Plant anatomy; Botany; Plantes; Botanique. â HM 78 ELEMENXr: OF STKUCTUUM liOTANV. I r of the stem, giving rise to what is culled the dccarrcni foi-m (Fig. l/U). Tho terms by wliicli simple leaves are ilescribod are applicable also to the leaflets of conipouiul leaves, to the Gcpals and petals of ilowcrs, and, in short, to any flat forms. I. Fig. i:}'2. 114. We have already explained that compound leaves are of two forma, pinnate and /la
. The elements of structural botany [microform] : with special reference to the study of Canadian plants, to which is added a selection of examination papers. Plant anatomy; Botany; Plantes; Botanique. â HM 78 ELEMENXr: OF STKUCTUUM liOTANV. I r of the stem, giving rise to what is culled the dccarrcni foi-m (Fig. l/U). Tho terms by wliicli simple leaves are ilescribod are applicable also to the leaflets of conipouiul leaves, to the Gcpals and petals of ilowcrs, and, in short, to any flat forms. I. Fig. i:}'2. 114. We have already explained that compound leaves are of two forma, pinnate and /lalinate. In the former, the leaflets are arranged on each tide o the midrib. There may be a leaflet at the end, in which case the leaf is ixUl-pinnate, or tho terminal leaflet may be wanting, and then the leaf is ahmpthj pinnate. In the Pea, the ^ n f is pinnate and terminates in a lenilril (Fig. 98). Very frequently the primary divisions of a pinnate leaf are themselves pinnate, and the whole leaf is then tnice-pinnate (Fig. 132). If the subdivision is continued through another stage, ^v the leaf is t^irice-pinnate, and so on. Sometimes, as in the leaves of the Tomato, very small leaflets are found between the larger ones, and this form is described as interrupt- cdhjijinnatc (Fig. 13o). Fig. 133,. 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 Macoun, John, 1831-1920; Spotton, H. B. (Henry Byron), 1844-1933. Toronto : W. J. Gage
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectbotany, booksubjectpl
