1(52 MONOCOTYLEDONS. GRAMINE/K. 



rally considerably elongated before tbc radicles are protruded. 

 The inferior end of the Embryo pierced by the radicles, which 

 were inclosed in its substance, and remaining under the form 

 of a rim or short sheath surrounding the base, 

 Vegetation. Stem cylindrical, increasing by addition to its centre 

 with no perceptible difference of structure between the bark 

 and the wood. Leaves alternate, often sheathing ; with close 

 parallel nerves, and minute transverse veins. 



ORDER I. GRAMINE^. 



Glume (calyx Linn.) 12- or many-flowered, mostly of 2 valves, 

 rarely of 1 or wanting. Perianth (corolla Linn.} glumaceous, 

 1 2-valved. Stamens hypogynous. Anthers versatile. Ovary 

 superior, with one ovule. Styles 2, rarely 1 or 3. Stigmas 

 plumose. Pericarp a Caryopsis, or Utriculus. Lnibryo 

 scutelliform, lateral, on the outside of the base of a farinaceous 

 copious albumen. Plumule naked. Stems fistulose, generally 

 simple and herbaceous, sometimes branched, rarely shrubby. 

 Leaves one to each joint, with a sheath slit longitudinally on 

 one side, having a membranous appendage (ligule) at its sum- 

 mit. Flowers small, panicled or spiked. Br. 



SECT. 1. PANICE.E. Br. inFlind. Voy. Glume with 2 3 flowers, 

 of which the lowest is imperfect. Br. 



1. PANICUM. 



Cal. of two valves, 2-flowered ; the inferior valve very small. 

 Flowers dissimilar; the inferior imperfect, of one or two 

 valves; the superior perfect, 2-valved ; seed invested with the 

 permanent hardened perianth. 



1. P. sanguinale, spike digitate, florets in pairs secund pubescent 

 at the margins, leaves and sheaths slightly hairy, p. 21 a . Pas- 

 tures, rare. 



2. ANTHOXANTHUM. 



Glume of 2 valves, 3-flowered. Inferior flowers imperfect, of 

 one valve, awned ; superior Jloret 2-valved, perfect, awnless, 

 valves minute. Stam. 2. Caryopsis free b . 



a The pages thus referred to, after each specific character, throughout 

 the mono- and dicotyledonous plants, are in the first Part of this Flora, where 

 fuller descriptions and more particular habitats are given ; both of which it 

 was deemed unnecessary to repeat here. 



b The character of this genus is so different from that which we have 

 given of it in the first part of this work, that it will be unintelligible to 

 students without some further explanation. It is therefore to be observed, 

 that what are here termed the two lower imperfect florets, are in our character 

 at p. 3, called the two outer valves of a double perianth, in conformity to 

 the general mode of describing Unadopted by botanists of the Linnaean school. 



