. Lessons with plants. Suggestions for seeing and interpreting some of the common forms of vegetation. s less than in several otherfamilies, numbering about two thousand fivehundred. There are two recent monographsupon grasses which the pupil may easily procure:Haekels True Grasses (translated by Lamson-Scribner and Southworth), and Beals Grassesof North America. The latter is in two vol-umes, the first comprising a general discussionand an account of the agricultural status ofthe grass tribes, the second containing a de-scription of the North American grasses. De-scriptions of the different k
. Lessons with plants. Suggestions for seeing and interpreting some of the common forms of vegetation. s less than in several otherfamilies, numbering about two thousand fivehundred. There are two recent monographsupon grasses which the pupil may easily procure:Haekels True Grasses (translated by Lamson-Scribner and Southworth), and Beals Grassesof North America. The latter is in two vol-umes, the first comprising a general discussionand an account of the agricultural status ofthe grass tribes, the second containing a de-scription of the North American grasses. De-scriptions of the different kinds of grasses, withspecial reference to their agricultural uses, mayalso be found in various publications issued bythe United States Department of Agriculture. Suggestions.—The grasses are too critical (the floral parts toominute, too similar and too much disguised) to be profitable sub-jects of study for the beginner, but the pupil should observe themanner of inflorescence of the different kinds, and he should espe-cially be able to determine the blooming time of the grains andmeadow Fig. 221. Staminate flowerof carex. XLIII. PARTICULAR TYPES OF FLOWERS,CONCLUDED. (SEDGES) 264. We have already been introduced to thesedges (Obs. xxx., Figs. 165, 166). The same sedgewhich is seen in flower in Fig. 166 is seen fully ripe PAMTICULAM TYPES OF FLOWEBS (SEDGES) 231 in Fig. 220. The entire flower-cluster is a compoundspike. Two of the spikelets are subtended bybracts, h h. If the staminate portion of the spike-lets were examined, two bare stamens would beseen arising from behind a scale (Fig. 221). Thepistillate flower (Fig. 222) has two styles which
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Keywords: ., bookauthorbai, bookcentury1900, bookdecade1900, booksubjectbotany
