. 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. if the former, the number of lobes is generally given. If the leaves are very deeply cut, they are said to be ^>a/??ia^^/t6? ovpinnatijid, according to the veining (Fig. 159). If the leat is pinnatifid and the lobes point backwards towards the base, as in Dandelion, the leal is said to l)e runcinate. If the leaf is palmately lobed, and tlie lobes at the base are them- selves lobed, the leaf i
. 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. if the former, the number of lobes is generally given. If the leaves are very deeply cut, they are said to be ^>a/??ia^^/t6? ovpinnatijid, according to the veining (Fig. 159). If the leat is pinnatifid and the lobes point backwards towards the base, as in Dandelion, the leal is said to l)e runcinate. If the leaf is palmately lobed, and tlie lobes at the base are them- selves lobed, the leaf is pedate (Fig. 160), because it looks something like a bird's foot. If the lobes of a pinnatifid leaf are them- selves lobed, the leaf is hii>innatifid. If the i^^|i/'5 leaf is cut up into fine segments, as in \| Dicentra, it is said to be multifid. H 177. Apex. The principal forms of the Fig. 159. apex are the mucnmate (Fig. 157), when the leaf is tipped with a sharp point, as though the "mid-rib were projecting beyond the blade; cuspidate^ when the leaf ends abruptly in a very short, but distinctly tapering, point (Fig. yf. 161); acute, or sharp; and obtuse, or blunt. It may happen that the apex does not end in a point of any kind. If it looks as though the end had been cut off square, it is truncate. If Fig.'161 the end is slightly notched, but not sufficiently so to warrant the description obcordate, it is emanjinate. 178. Margin. If the margin is not indented in any way, it is said to be entire. If it has sharp iG^iYi, iiointing. 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 Spotton, H. B. (Henry Byron), 1844-1933. Toronto : W. J. Gage
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectbotany, booksubjectpl
