. High school botanical note book [microform]. Botany; Botanique. Ill ill >:h 40 OLOSilAJir OF Bracts (or Scales) oi Involucre. NuMHKU ov Rows: state the exact number, unless very numerous. Akuancemext of Scales : (a) Imbricated, in several rows and over-lapping (Fig. 2:53). (b) li'rflcxcd, turned backward, as in Dandelion (Fii?. 229). (c) Appressed, closely pressed together. (d) Squarrosc, with the points widelv spreading (Fig. 233). Texture : (a) Hvbaeeous, green and leaf-like. (b) Scarious, tliin and membranaceous. Shape : use the ordinary leaf terms. GRASSES. These plants also require s
. High school botanical note book [microform]. Botany; Botanique. Ill ill >:h 40 OLOSilAJir OF Bracts (or Scales) oi Involucre. NuMHKU ov Rows: state the exact number, unless very numerous. Akuancemext of Scales : (a) Imbricated, in several rows and over-lapping (Fig. 2:53). (b) li'rflcxcd, turned backward, as in Dandelion (Fii?. 229). (c) Appressed, closely pressed together. (d) Squarrosc, with the points widelv spreading (Fig. 233). Texture : (a) Hvbaeeous, green and leaf-like. (b) Scarious, tliin and membranaceous. Shape : use the ordinary leaf terms. GRASSES. These plants also require several special terms for their complete description. A few of the most necessary are given here. Inflorescence. In nearly all cases the inflorescence is a panicle, that is, an irregularly branched raceme, and the panicle is either loose and open, as in Meadow-grass (Fig. 238), or dense and closely packed as in Timothy and Foxtail. Spikelets: the small separate clusters of flowers which together make up the panicle (Fig. 239). In some cases there is but one flower in the spikelet. Outer Glumes : the pair of bracts at the base of the spikelet (Fig. 240). Note their shape and relative size, Ixneu Glumes ok Palets : the pair of chaff-like bracts enclosing each particular flower (Fig. 242). Awns: bristle-shaped ajipendages sometimes found on the glumes or palets (Fig. 242). LoDicuLES: small hypogynous scales next to the stamens, occasionallj- found in grass-flowers. Culm. ' This is the name of the stem (Fig. 238). It is usually hollow except at tlie joints. The culms may bo tufted or single, and their attitude and other characters can be described by tcTiiis already Fif,'. 231. Fitf, Jua. ^f^. 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 Spotton, H. B. (Henry Byron), 1844-1933. Toronto : W. J. Gage
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectbotany, bookyear1895
