. The elements of botany for beginners and for schools. Botany. 66 LEAVES. [SECTION 7 leaf compound. Here, using the Lat in form, the leaf is said to be bisected, trisected (Fig. 153), etc., accurdiug to the number of the divisions. 141. The Mode of Lobing or Division corresponds to that of the veining, \\\\iii\\t\: jjinnalelj/ veined or palniatclif veined. In tlie former the notches or incisions, or sinuses, coming Ix'twcen the principal veins or ribs are directed toward the midrib : in tlie latter they are directed toward the apex of the petiole ; as the figures sliow. 142. So degree and mod
. The elements of botany for beginners and for schools. Botany. 66 LEAVES. [SECTION 7 leaf compound. Here, using the Lat in form, the leaf is said to be bisected, trisected (Fig. 153), etc., accurdiug to the number of the divisions. 141. The Mode of Lobing or Division corresponds to that of the veining, \\\\iii\\t\: jjinnalelj/ veined or palniatclif veined. In tlie former the notches or incisions, or sinuses, coming Ix'twcen the principal veins or ribs are directed toward the midrib : in tlie latter they are directed toward the apex of the petiole ; as the figures sliow. 142. So degree and mode of division may be tersely expressed in brief phrases. Thus, in tlie four upper figures of piunately veined leaves, tlie first is said to be pinnatel^ lobed (in the special sense), the second pinnateli/ cleft (or pinnatijid in Latin form), the third pinnatelj parted, the fourtli ^innately divided, or pinnaiisected. 143. Correspondingly in the lower row, of palmately veined leaves, the first is palmately lobed, the second palmately clfft, the third palmately parted, the fourth palmately divided. Or, in other language of the same meaning (but now less commonly employed), they are said to be digitately lobed, cleft, parted, or divided. 144. The number of the divisions or lobes may come into the phrase. Thus in the four last named figures the leaves are respectively palmately. three-lobed, three-cleft (or trifd), three-parted, three-divided, or better (in Latin form), trisected. And so for higher numbers, -a^ fve-lobed, fve-cleft. Fig. 148, pinnately lohed; 149, pinnately cleft; 150, piunately parted; 151, pinnately divided, leaves. Fig. 152, palmately three lobed ; 153, j)almately three-cleft; 154, [lalmately three-parted ; 155, palmately three-divided or trisected, 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 or
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectbotany, bookyear1887
