. British trees. Trees. 42 BLACKTHORN. THK LEAF. The Icar varies iroin :| to i| inches in length and, at its widest pe)int, troin ^ to J of an inch in breadth. It tapers towards the base and ll lias a tinelv serrated edge. The normal torm is shown in the diagram. Its colour, at first a delicate pale green, becomes dull and heavy as the season advances. The under- side ot the leat has a dull matt surtace. The mid-rib is prominent. The leaf-stalk is ot a pale green or reddish-green tint on the upper side, and red on the lower side. The leaves are usually tound in a horizontal position, with the
. British trees. Trees. 42 BLACKTHORN. THK LEAF. The Icar varies iroin :| to i| inches in length and, at its widest pe)int, troin ^ to J of an inch in breadth. It tapers towards the base and ll lias a tinelv serrated edge. The normal torm is shown in the diagram. Its colour, at first a delicate pale green, becomes dull and heavy as the season advances. The under- side ot the leat has a dull matt surtace. The mid-rib is prominent. The leaf-stalk is ot a pale green or reddish-green tint on the upper side, and red on the lower side. The leaves are usually tound in a horizontal position, with the tips turned down ; on the new shoots and suckers the leaves are rounder in shape and lie flat, with the angle between the leat-stalk and the twig somewhat acute, so that they point in an upward direction. Reference has already been made to the spiral arrangement of- the leaves on shoots of normal development ; wheic the growth of the shoot has been arrested, the leaves often appear in clusters, five leaves radiating in a circle from a group of six buds. The single leaves have usually three buds in the axil of USUAL eonm ik-^r o^f ril before the leaves. They consist of fi\e [K'tals, hvc sepals, a single carpel tunning the ovary and vellovv-tip[icd stamens. The petals are pmx' white and ojien very wide, so that spaces are left between. 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 Cole, Rex Vicat, b. 1870; Kempe, Dorothy. London : Hutchinson
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Keywords: ., bookcentury1900, bookdecade1900, booksubjecttrees, bookyear1907
