British grasses and their employment in agriculture . Pig. 50. -Seedof Alopecurusgeniculalus, Fig. 49. Two semi-aquatic grasses. Alopecu-rus geniculalus, L. (left), Aira ccespitosa, L.(right). About \ nat. size. same direction as the leaves; at first silvery-violet or chocolatein colour, but later on turning light-brown. Spikelets numerous,three-flowered, ovate-lanceolate at first, and spreading glumes unequal, narrow, and acute, each bearing a nerveon either side of the central keel. 68 Botanical Section [PT I I I I I Seed. Outer palea 10-12 mm. long, including the long awn
British grasses and their employment in agriculture . Pig. 50. -Seedof Alopecurusgeniculalus, Fig. 49. Two semi-aquatic grasses. Alopecu-rus geniculalus, L. (left), Aira ccespitosa, L.(right). About \ nat. size. same direction as the leaves; at first silvery-violet or chocolatein colour, but later on turning light-brown. Spikelets numerous,three-flowered, ovate-lanceolate at first, and spreading glumes unequal, narrow, and acute, each bearing a nerveon either side of the central keel. 68 Botanical Section [PT I I I I I Seed. Outer palea 10-12 mm. long, including the long awn-a-a-n-n-rlike taper-point. Inner palea half as long as the outer palea, a,a,a,a,tmembranous and minutely fringed towards its apex. The raehillalalalalalis covered with long silky hairs. Avena. British species of this genus are recognised by their :~:~:~ ~~ ~open spreading panicles, 2-5 flowered spikelets (if only two flowers
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, booksubjectgr
