The encyclopædia britannica; a dictionary of arts, sciences, literature and general information . Fig. I.—Stinging Hairof Urtica dioica, witha portion of the epi-dermis, and, to theright, a small bristle From \iiicss SluderU^ TextBonk 0/ Boiaiiy. by pcrmUsioaof Swaji Sonoeoschcia & Co. Fig. 3.—A staminal (^f),B carpellary (S) flowerof the Nettle, p, peri-anth; c, stamen; n,rudimentary o\ary ofthe(^ flower; ap, outer,ip, mner, whorl of theperianth; n, stigma ofthe 2 flower (enlarged). stem are generally long and firmly attached end to end, and henceof great value for te:<tiTe use. Thus in ra
The encyclopædia britannica; a dictionary of arts, sciences, literature and general information . Fig. I.—Stinging Hairof Urtica dioica, witha portion of the epi-dermis, and, to theright, a small bristle From \iiicss SluderU^ TextBonk 0/ Boiaiiy. by pcrmUsioaof Swaji Sonoeoschcia & Co. Fig. 3.—A staminal (^f),B carpellary (S) flowerof the Nettle, p, peri-anth; c, stamen; n,rudimentary o\ary ofthe(^ flower; ap, outer,ip, mner, whorl of theperianth; n, stigma ofthe 2 flower (enlarged). stem are generally long and firmly attached end to end, and henceof great value for te:<tiTe use. Thus in ramie {, Bochmcria niiea)a single fibre may reach nearly 9 in. in length, and in stinging nettleas much as 3 in. The small inconspicuous regular flowers (figs. 3and 4) are arranged in definite (cyraose) inflorescences of ten crowded into head-Uke clusters. They are unisexual and monoecious ordioecious. The four or five green perianth leaves (or sepals) arefree or more or less united; the male flowers (fig. 2) contain asmany stamens, opposite the sepals, which bend inwards in the bud. Fig. 4.—Urtica urens (after Curtis, Flora Londinensis). I, male flower; 2, female flower in fruiting stage—the dry com-pressed fruit 3 escaping from the persistent perianth; 4, fruitcut open, revealing the seed within the large straight embryo , 2, 3, enlarged. stage, but when mature spring backw^ards and outwards, theanther at the same time exploding and scattering the flowers are thus adapted for wind-pollination. The femaleflower contains one carpel bearing one style with a brush-likestigma and containing a single erect ovule. The fruit is dry andone-seeded; it is often enclosed within the persistent straight embrj-o is surrounded by a rich oily endosperm. URUGUAY (officially the Oriental Republic of the Uruguay,and long locally called the Banda Oriental, meaning the landon the eastern side of the river Uruguay, from which the countrytakes its name), the sma
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectencyclo, bookyear1910
