. Outlines of botany for the high school laboratory and classroom (based on Gray's Lessons in botany) Prepared at the request of the Botanical Dept. of Harvard University. Botany; Botany. THE FLOWER 143 . Diagram ol a simple cyme in which the axis lengtli- ens, su as to take the form of a raceme. 306. \Vlieievci- there are bracts or leaves, buds may be produced from their axils and appear us flowers. Figure '2b2 represents the case where tlie branches, hb, of Fig'. , each with a pair of small leaves or bracts about their middle, have branched again, and produced the branchlets and flowers,
. Outlines of botany for the high school laboratory and classroom (based on Gray's Lessons in botany) Prepared at the request of the Botanical Dept. of Harvard University. Botany; Botany. THE FLOWER 143 . Diagram ol a simple cyme in which the axis lengtli- ens, su as to take the form of a raceme. 306. \Vlieievci- there are bracts or leaves, buds may be produced from their axils and appear us flowers. Figure '2b2 represents the case where tlie branches, hb, of Fig'. , each with a pair of small leaves or bracts about their middle, have branched again, and produced the branchlets and flowers, cc, on each side. It is the continued repetition of this wliich forms the full or compound cyme, such as that of the Ilobblebush, Dogwood, and Hydrangea. 307. A Fascicle (meaning a bundle), like that of the Sweet William and Lychnis of the gardens, is only a cyme with the flowers much crowded together. 308. A Glomerule is a cyme still more com- pacted, so as to imitate a head. It may be known from a true head by the flowers not expanding centripetally; that is, not from the circumferinoe toward the center. 309. Scorpioid or Helicoid Cymes, of various sorts, are forms of determinate inflorescence (often puzzling to the student) in wduch one-half of the ramification fails to appear. So tliat tliey may be called incomplete ci/mes. The commoner forms may be undei'siood by comparing a complete cyme, like that of Fig. '252, with Fig. 251, the diagram of a cyme of an opposite-leaved plant, having a S(;ries of terminal flowers and the axis coiituiued by the development of a branch in the axil of only one of the leaves at each node. The dotted lines on the left indicate the place of the ^yanting ^,j_^ ^^ branches, which if present vpould convert i/]j^> ^ |^g;i this scorpioid cyme into the complete one of Fig. 252. Figure 254 a is a diagram cf similar inflorescence with alternate leaves. jVn axis made up in this way of a surcension of branches is termed a nipiipoiliuin. 310. Mixed In
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