. Notes on the life history of British flowering plants. Botany; Plant ecology. 371. Fig. 267. Tip of ,the root of a Beech with closely arlher- eut mycelial mantle. some reason to doubt whether it could live without the assistance of the fungus. At any rate, attempts to rear seedlings of Beech and Fir in nutrient solu tions have failed; and it seems fairly well established that the roots of the Beech and of many other trees suck up moisture aud nutriment by help of the my- celium ; and, on the other hand, the mycelium, no doubt, is nour- ished by taking toll of the sap of the Beech.
. Notes on the life history of British flowering plants. Botany; Plant ecology. 371. Fig. 267. Tip of ,the root of a Beech with closely arlher- eut mycelial mantle. some reason to doubt whether it could live without the assistance of the fungus. At any rate, attempts to rear seedlings of Beech and Fir in nutrient solu tions have failed; and it seems fairly well established that the roots of the Beech and of many other trees suck up moisture aud nutriment by help of the my- celium ; and, on the other hand, the mycelium, no doubt, is nour- ished by taking toll of the sap of the Beech. To what species of fungus the mycelium belongs has not yet been ascer- tained. The cupule forms a single chamber sur- rounded by four or five valves which open at their upper ends. The walls are composed of two distinct layers of woody cells. Those of the inner layer are elongated vertically, those of the outer are isodiametric. They therefore contract more, and thus open the valves. Castanea (Spanish Chestnut) The erect catkins, which flower when the tree is in full leaf, bear a few groups of female flowers at the base, and the male flowers !S|j'] ^'"^ above. Each female group con- Si sists of 3 flowers, the whole enveloped, as in Beech, by a cupule, formed from the four brac- teoles. In the fruit the cupule forms a spiny envelope around the three nuts. The Eating or Spanish Chestnut [Castanea sativa) has been cultivated in England since the Eoman period. Fig. 269. Buds of Spanish Fig. 268, Fig. Chestmit. ^ nat. size. Fig. 269.—The second scale de taohed. x 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 Lubbock, John, Sir, 1834-1913. London, New York, Macmillan and Co. , Ltd.
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Keywords: ., bookauthorlub, bookcentury1900, bookdecade1900, booksubjectbotany
