. 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. Fig. 159. il 'he former, the number of lobes is generally given. If the leavers an; very deeply cut, they are said to be palmatijUl ovpinnatijid, according to the veining (Fig. 159). If the leaf is pinnatifid and the lobes point backwards towards the base, as in Dandelion, the leaf is said to be runeinate. If the leaf is palmately lobed, and the lobes at the base are them- selves lobed, the leaf
. 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. Fig. 159. il 'he former, the number of lobes is generally given. If the leavers an; very deeply cut, they are said to be palmatijUl ovpinnatijid, according to the veining (Fig. 159). If the leaf is pinnatifid and the lobes point backwards towards the base, as in Dandelion, the leaf is said to be runeinate. If the leaf is palmately lobed, and the lobes at the base are them- selves lobed, the leaf is ^;ec/«^e (Fig. 160), because it looks something like a bird's foot. If the lobes of a pinnatifid leaf are them- selves lob^d, the leaf is hipinnatijid. If the leaf is cut up into fine segments, as in Dicentra, it is said to be multijid. 177. Apex. The princi[)al forms of the apex are the mucronate (F^'ig. 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. J. 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 emarjinate. 178. Margin. If the margin is not indented in any way, it is said to be entire. If it has shar{) teeth, j^ohiting. 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: ., book, bookcentury1800, booksubjectbotany, booksubjectplantanatomy
