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awn

awn

awn Sentence Examples

  • The wild oat, moreover, has a long stiff awn, usually twisted near the base.

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  • pointed, awn twisted at base.

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  • The awn is also of use in burying the fruit in the soil.

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  • 1); in Erodium and Pelargonium each coccus remains closed, and the long twisted upper portion separates from the central column, forming an awn, the distribution of which is favoured by the presence of bristles or hairs.

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  • Valuable characters for distinguishing genera are obtained from the awn.

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  • The awn may be either terminal or may come off from the back of the flowering glume, and Duval Jouve's observations have shown that it represents the blade of the leaf of which the portion of the flowering glume below its origin is the sheath; the twisted part (so often suppressed) corresponds with the petiole, and the portion of the glume extending beyond the origin of the awn (very long in some species, e.g.

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  • When terminal the awn has three fibro-vascular bundles, when dorsal only one; it is covered with stomate-bearing epidermis.

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  • The pair of barren glumes (b) are separated from the flowering glume, which bears a long awn, twisted below the knee and feathery above.

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  • Fertile glumes generally longer than the empty, unawned or with a straight, terminal awn.

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  • The outer glumes are acute and glabrous, the flowering glumes lance-shaped, with a comb-like keel at the back, and the outer or lower one prolonged at the apex into a very long bristly awn.

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  • Each flower consists of an outer or lower glume, called the flowering glume, of the same shape as the empty glume and terminating in a long, or it may be in a short, awn or "beard."

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  • - Spikelet of Oat (Avena sativa) laid open, showing the sterile bracts gl, gl, or empty glumes; g, the fertile or floral glume, with a dorsal awn a; p, the pale; fs, an abortive flower.

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  • On pages 4 and 5 we describe a method for studying the remarkable hygroscopic awn of wild oat seeds.

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  • awn o ddrwg i waeth gyda'r Llywodraeth hon.

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  • awn cost.

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  • hygroscopic awn of wild oat seeds.

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  • I), the flowering glume having its dorsal rib prolonged into an awn (fig.

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  • The wild oat, moreover, has a long stiff awn, usually twisted near the base.

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  • pointed, awn twisted at base.

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  • 1); in Erodium and Pelargonium each coccus remains closed, and the long twisted upper portion separates from the central column, forming an awn, the distribution of which is favoured by the presence of bristles or hairs.

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  • The midrib in a large proportion of genera extends into an appendage termed the awn (fig.

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  • Valuable characters for distinguishing genera are obtained from the awn.

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  • The awn may be either terminal or may come off from the back of the flowering glume, and Duval Jouve's observations have shown that it represents the blade of the leaf of which the portion of the flowering glume below its origin is the sheath; the twisted part (so often suppressed) corresponds with the petiole, and the portion of the glume extending beyond the origin of the awn (very long in some species, e.g.

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  • When terminal the awn has three fibro-vascular bundles, when dorsal only one; it is covered with stomate-bearing epidermis.

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  • The pair of barren glumes (b) are separated from the flowering glume, which bears a long awn, twisted below the knee and feathery above.

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  • The awn which is frequently borne on the flowering glume is also a very efficient means of distribution, catching into fur of animals or plumage of birds, or as often in Stipa (fig.

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  • The awn is also of use in burying the fruit in the soil.

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  • The long awn, which is bent and closely twisted below the bend, acts as a driving organ; it isvery hygroscopic, the coils untwisting when damp and twisting up when dry.

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  • The repeated twisting and untwisting, especially when the upper part of the awn has become fixed in the earth or caught in surrounding vegetation, drives the point deeper and deeper into the ground.

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  • Fertile glumes generally shorter than the empty glumes, usually with a bent awn on the back.

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  • Fertile glumes generally longer than the empty, unawned or with a straight, terminal awn.

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  • The outer glumes are acute and glabrous, the flowering glumes lance-shaped, with a comb-like keel at the back, and the outer or lower one prolonged at the apex into a very long bristly awn.

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  • Each flower consists of an outer or lower glume, called the flowering glume, of the same shape as the empty glume and terminating in a long, or it may be in a short, awn or "beard."

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  • - Spikelet of Oat (Avena sativa) laid open, showing the sterile bracts gl, gl, or empty glumes; g, the fertile or floral glume, with a dorsal awn a; p, the pale; fs, an abortive flower.

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  • The long awn, which is bent and closely twisted below the bend, acts as a driving organ; it isvery hygroscopic, the coils untwisting when damp and twisting up when dry.

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  • The repeated twisting and untwisting, especially when the upper part of the awn has become fixed in the earth or caught in surrounding vegetation, drives the point deeper and deeper into the ground.

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  • Fertile glumes generally shorter than the empty glumes, usually with a bent awn on the back.

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