American Grasses.--[I-III], Volume 1U.S. Government Printing Office, 1900 - Grasses |
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17 illustrate 2-keeled 2-toothed 3-nerved 3d glume Acad acute Agros Agrost Annual or perennial apex awned awnless axis Beauv branches bristle cæspitose callus Caryopsis compressed coriaceous culms densely dorsal view empty glumes removed flat leaves Flora floral glume floret flowering glume fruiting glume genera genus glume and palea glumes usually Grain free Grain oblong grasses with flat HACKELOCHLOA hairy hemispheres hermaphrodite hyaline HYDROCHLOA illustrate other species inclosed inflorescence Journ keeled Linn little shorter LUZIOLA MANISURIS many-flowered many-nerved monoecious mucronate nearly equal nerves North America obtuse outer empty glumes outer glumes Palea a little panicles pedicellate perennial grasses pistillate pistillate spikelet plantarum prolonged racemes rachilla articulated rachis rarely rigid second glume sessile short-awned slender spike-like panicles spikelet showing Spikelets 1-flowered Stamens staminate spikelet stigmas plumose Styles distinct Styles short Tall temperate regions terminal panicles Torr TRACHYPOGON tribe tropical U. S. Dept