. Pharmaceutical botany. Botany; Botany, Medical. 40 PHARMACEUTICAL BOTANY axils of opposite leaves. Ctusters of this kind are seen in Catnip, Horehound, Peppermint and other plants of the Labiatae. The raceme, corymb, umbel, etc., are frequently compounded. The compound raceme, or raceme with branched pedicels, is called a panicle. Ex.: Yucca and paniculate inflorescence of the oat. A Thyrsus is a compact panicle, of a pyramidal or oblong shape. Ex.: Lilac, Grape and Rhusglabra. A Mdced Anthotaxy is one in which the determinate and indeter- minate plans are combined, and illustrations of this

. Pharmaceutical botany. Botany; Botany, Medical. 40 PHARMACEUTICAL BOTANY axils of opposite leaves. Ctusters of this kind are seen in Catnip, Horehound, Peppermint and other plants of the Labiatae. The raceme, corymb, umbel, etc., are frequently compounded. The compound raceme, or raceme with branched pedicels, is called a panicle. Ex.: Yucca and paniculate inflorescence of the oat. A Thyrsus is a compact panicle, of a pyramidal or oblong shape. Ex.: Lilac, Grape and Rhusglabra. A Mdced Anthotaxy is one in which the determinate and indeter- minate plans are combined, and illustrations of this

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. Pharmaceutical botany. Botany; Botany, Medical. 40 PHARMACEUTICAL BOTANY axils of opposite leaves. Ctusters of this kind are seen in Catnip, Horehound, Peppermint and other plants of the Labiatae. The raceme, corymb, umbel, etc., are frequently compounded. The compound raceme, or raceme with branched pedicels, is called a panicle. Ex.: Yucca and paniculate inflorescence of the oat. A Thyrsus is a compact panicle, of a pyramidal or oblong shape. Ex.: Lilac, Grape and Rhusglabra. A Mdced Anthotaxy is one in which the determinate and indeter- minate plans are combined, and illustrations of this are of frequent occurrence. The order of flower development is termed ascending when, as in o N/ N/ Q N^ ^/ N/ N/. F G Fig. 2g.—Cymose inflorescences. F, A terminal flower. G, A simple cyme, compound cyme. {From Hamaker.) H,h the raceme, the blossoms open first at the lowest point on the axis and continue to the Apex. Ex.: White Lily, and many other plants of the same family. In the cyme the development is centrifugal, the central florets opening first, while in the corymb it is centripetal, or from margin to center. Prefloration.—By prefloration is meant the arrangement of the floral envelopes in the bud. It is to the flower bud what vernation is to the leaf bud, the same descriptive terms being largely employed, as convolute, involute revolute, plicate, imbricate, etc. In addition to those already defined, the following are important. Valvate prefloration, in which the margins meet but do not over- lap. Of this variety the induplicate has its two margins rolled inward. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Youngken, Heber W. (Heber Wilkinson), 1885-1963; Stewart, Francis Edward, 1853-1941. Philadelphia, P. Blakiston's son & co