113 



POA RIGIDA. 



LlNNJEUS. HOOKEE AND ARNOTT. SMITH. PARNELL. 

 GrREVILLE. WlLLDENOW. CURTIS. KNAPP, ScHRADER. HOST. HUDSON. 



WITHERING. HULL. RELHAN. SIBTHORP. ABBOT. DEAKIN. 



PLATE XXXV. B. 



Sclerochloa rigida, BEAUVOIS. LINK. LINDLEY. 



" " BABINGTON. 



Festuca rigida, KUNTH. KOCH. 



Glyceria rigida, SMITH. RALFS. REICHENBACH. 



The Hard Meadow-Grass. 



Poa Grass. Rigida Rigid. 



THIS diminutive British Grass grows on walls, rocks, and in 

 barren soil, and is therefore of no use to agriculturists. 



A frequent Grass in England, Ireland, and south of Scotland. 



Native of France, Italy, Germany, Switzerland, and Northern 

 Africa. 



Stem near the base decumbent, otherwise upright; circular, 

 polished, and striated, having four or five linear, narrow, point- 

 ed, involute leaves, with smooth striated sheaths; upper sheath 

 shorter than its leaf, and having at the apex a lengthy pointed 

 ligule. Joints smooth, and three or four in number. Inflor- 

 escence simple-panicled. Panicle rigid, upright, short, lanceolate, 

 rough, rigid, and unilateral. Spikelets linear, compressed, 

 mostly consisting of seven florets ; the apex of basal floret 

 stretching slightly beyond the large glume of the calyx. 

 Calyx of two acute unequal-sized glumes, destitute of lateral 

 ribs. Florets of two paleee; exterior one of basal floret five- 



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