216 POPULAR FLORA. 



common genera, each with several species: the parts are too small and difficult for the 

 young student. 



Pod 1-celled and 3-seeded. Lea%'es flat and hairy, (Liizula) Wood-Rush. 



Pod 3-ceUed, many-seeded. Leaves generally thread-shaped, or none at all, {Juncus) Rush. 



104. SEDGE FAMILY. Order CYPEEACEiE. 

 A large family of Rush-like or Grass-like plants, including the Sedges, Clubrushes, 

 Bulrushes, and the like, which have no perianth, but the flowers, collected in heads or 

 spikes, arc each in the axil of a single glume in tjie form of a chaff or scale. These plants 

 are much too difficult for the young beginner. 



105. GRASS FAMILY. Order GRAMINE^. 

 The true Grasses make a large and most important family of plants, with straw stems 

 (called culms, 91) ; leaves with open sheaths; and flowers with 2-ranlced glumes or chaffy 

 scales, a pair to each flower, and another pair to each spikelet. It includes not only the 

 very numerous kinds of true Grasses, but also of Corn, i. e. the Cereal grains, of which 

 AVheat, Barley,' Rye, Oats, Rice, and Maize or Indian-Corn are the principal; 

 also Sdgar-Cane, Broom-Corn or Guinea-Corn, and Millet. 



SERIES II. 

 FLOWERLESS OR CRYPTOGAMOUS PLANTS. 



Plants destitute of flowers, and propagated by spores instead of seeds. See 

 Part I., Paragr. 165, 308, 312 -314. 



CLASS III.— ACROGENS. 

 This class includes the Ferns, the Horsetails, and the Club-Mosses. 



CLASS IV. — ANOPHYTES. 



This class includes the Mosses and the Liverworts. 



CLASS V. — THALLOPHYTES. 

 Includes the Lichens, the Alg^ or Seaweeds, and the Fungi or Mushrooms. 



