First book of Grasses the Structure of Grasses Explained for Beginners
The book First book of Grasses the Structure of Grasses Explained for Beginners was written by author Agnes Chase Here you can read free online of First book of Grasses the Structure of Grasses Explained for Beginners book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is First book of Grasses the Structure of Grasses Explained for Beginners a good or bad book?
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REVIEW Collect the inflorescence of Johnson-grass and of any of the broom-sedges. Break the raceme into single joints, noting the points at which it readily separates. Examine the spikelets and the rachis and distinguish the rachis joint from the pedicel. If you had a panicle of Rhaphis (Fig. 78, D) from which all the sterile spikelets with their pedicels had fallen, how would you know it was not a species of Stipa? Make diagrams of the inflorescence of any available species of the sorghum trib...e. LESSON XII HIGHLY SPECIALIZED UNISEXUAL SPIKELETS EXAMINE Fig. 80, gama-grass (Tripsacum dactyloides) . This grass is monoecious (see p. 23). The pistillate spikelets are borne on the lower part of the one to three stout digitate racemes and the staminate spike- lets on the upper part of the same racemes (Fig. 80, D). The part of the rachis bearing the stami- nate spikelets is rela- tively slender and falls off after flowering time; the part bearing the pis- tillate spikelets is greatly thickened and disarticu- lates with the spikelets permanently embedded in the joints.
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