. Plants and their uses; an introduction to botany . gacea). A leafytwig, bearing flower-clusters composed mostly of yellowish, staminateflowers with a few greenish pistillate flowers near the base. Aboutone-quarter natural size. (Baillon.)—The plant is one of the largestforest trees of the north temperate zone, sometimes in forests attain-ing a height of 30 m. Bark, on the trunk and older branches, dark,very hard, and with long deep clefts; when younger smooth and lightercolored; young twigs deep green, bronzed or purplish brown, coveredwith whitish dots. Leaves, polished, bright green above,
. Plants and their uses; an introduction to botany . gacea). A leafytwig, bearing flower-clusters composed mostly of yellowish, staminateflowers with a few greenish pistillate flowers near the base. Aboutone-quarter natural size. (Baillon.)—The plant is one of the largestforest trees of the north temperate zone, sometimes in forests attain-ing a height of 30 m. Bark, on the trunk and older branches, dark,very hard, and with long deep clefts; when younger smooth and lightercolored; young twigs deep green, bronzed or purplish brown, coveredwith whitish dots. Leaves, polished, bright green above, smooth andpaler below. In spite of their disadvantages, however, chestnuts, wal-nuts, and peanuts form a very important part of the food ofmany Europeans, largely taking the place of cereals. Inmany tropical regions where cereals do not grow, immense 38 VARIOUS quantities of ])oaniits and Brazil-nuts are oaten, while insome places the coconut constitutes the chief, .sometimesalmost the only, food. The importance of nuts, to mankind,. C D Fig. 25.—Chestnut. .1, twipc hoaririK two oliLstfTS of pistillate flowers,and a small immature cluster of .staminate flowers. B, a single clusterof three pistillate flowers protrudins from anionp; the bracts whichform a cup aro;ind them. (, a single pistillate flower, showing sixelfjngated stigmas and a hell-shaped of sepals formed abovethe ovary. D, the same, cut vertically to show the ovules at the baseof the flask-shaped ovary. E, a single staminate floAver, showing thenumerous stamens surrounded by the calyx of six ser)als joined at thebase. The figures all somewhat enlarged. (Baillon.) f%
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
