Grass Morphology Crossword Puzzle

QUESTIONS LIST:

• floret : consists of the lemma and palea with included stamens and pistil (later including the caryopsis).
• raceme : unbranched inflorescence in which spikelets are attached to rachis by pedicels.
• anthesis : period when the flower is open; anthers and stigma are mature; pollen is shed.
• spikelet : unit usually consisting of two glumes and one or more florets.
• palea : inner or upper covering of the grass floret; more membranous than the lemma.
• spike : grass inflorescence in which spikelets are attached directly to rachis.
• endosperm : nutritive tissue within the embryo sac.
• auricle : ear-like projection at the base of grass leaf blade.
• rhizome : below-ground horizontal stem with scale-like leaves and axillary buds at nodes.
• embryo : young plant that exists in a "still" state of development within the seed.
• seminal roots : roots of a grass seedling that emerge from cotyledonary node shortly after germination.
• internode : tissue between two nodes.
• boot stage : grass tiller maturity stage when inflorescence is in the sheath of flag leaf.
• collar : junction of grass leaf blade and sheath.
• ligule : membrane-like projection on the inner side of the leaf sheath arising at collar.
• panicle : grass inflorescence in which spikelets are attached to pedicels on a subdivided or branched axis.
• lemma : outer or lower covering of the grass floret; will have an awn on many species.
• radicle : embryonic root; first through the seed coat during germination.