British grasses and their employment in agriculture . et or partial inflorescence consistsof a little spike of flowers with their palea? arranged as showndiagrammatically in Fig. 18, the whole being enclosed by one2or more (usually two) bracts called the empty glumes—or brieflythe glumes. The flower and spikelets of the Oat are large andafford good material for examination. Forms of Inflorescence. The form of inflorescence is determined 1 In a few genera the lodicules are absent, Alop°curus, Anthoxanthum, etc. 2 Except in Nardui, where the glume is obsolete. CH. I The Morphology of Grasse
British grasses and their employment in agriculture . et or partial inflorescence consistsof a little spike of flowers with their palea? arranged as showndiagrammatically in Fig. 18, the whole being enclosed by one2or more (usually two) bracts called the empty glumes—or brieflythe glumes. The flower and spikelets of the Oat are large andafford good material for examination. Forms of Inflorescence. The form of inflorescence is determined 1 In a few genera the lodicules are absent, Alop°curus, Anthoxanthum, etc. 2 Except in Nardui, where the glume is obsolete. CH. I The Morphology of Grasses 15 by the way in which the spikelets are attached to the mainaxis. If they are borne directly upon the rachis, as in Fig. 27,we have a spike of spikelets or briefly a spike (see Couch-grass).If they are supported upon primary or simple branches we-havea raceme. In the majority of species, however, the spikelets areborne on secondary, tertiary, or even further subdivided branches,and this compound class of inflorescence is a panicle of spikelets.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, booksubjectgr
