. 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. .r',> '\ Fig. 127. V ifctii. fSouictimcs tliC edges of hirgc tcctli are tlicmselvos iiuely serrated, nud ill that case the leaf is dotibbj snratr (Fig. 127). If th«> teeth l)i)iiit (mttvards, that is, if the two edges of each tooth are of the same lengtli, the leaf /' is (h'iitdtc, but if the teeth, ( f.^,1/ crenafe (Fig. 128). The term Hvav/exphiiiisitself. 113. Base. There are two or thr
. 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. .r',> '\ Fig. 127. V ifctii. fSouictimcs tliC edges of hirgc tcctli are tlicmselvos iiuely serrated, nud ill that case the leaf is dotibbj snratr (Fig. 127). If th«> teeth l)i)iiit (mttvards, that is, if the two edges of each tooth are of the same lengtli, the leaf /' is (h'iitdtc, but if the teeth, ( f.^,1/ crenafe (Fig. 128). The term Hvav/exphiiiisitself. 113. Base. There are two or three peculiar Fig. jojj modifications of the bases of simple sessile leaves which are of considerab!' importance in distinguishing plants. Sometimes a pan- of lobes project backwards and cohere on tlie other side of the stem, so that the stem if'^'\ , appears to pass through the leaf. This is the ' case in our common licllwort, the leaves of / which are accordingly described as perfoliate )^^ (Fig. 129). Sometimes two opposite sessile leaves grow together at the base, and clasp the stem, as in the upper leaves of Honeysuckle, Fig. 120. ii2 the Triosteum, and in one of our species of Eupatorium. Such leaves are said to be connate or con- nate-pcrfoUate (Fig. 130). In one of our Everlastings the margin of the leaf is con- ^ -^ tinned on each side below the. 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
