GLYCERIA.. SCLEROCHtOA. 501 



striate, L. pale green, acute, often floating. Ligule long. Pan. 

 very long, often nearly simple ; branches without callosities, 

 ascending, lowermost usually in pairs. Spikelets adpressed. 

 Lower pales rather the shorter, with a triangular central point. 

 Anthers about 5 times as long as broad, purple, pale yelloAV 

 when empty. /3. G. pedicellata 1 (Towns.) ; pan.-branches 

 simple roughish, spikelets of 913 blunt flowers. L. more 

 acute. Lowermost pan.-branches about in threes. Anth. 

 about 4 times as long as broad, yellow when young. A. N. If. 

 ser. 2. v. 105. Curt. Fl. Lond. i. 18. Nearer to plicata than 

 Jlu.it am by its rough furrowed sheath, lower pale 3-toothed and 

 never exceeding the upper. G. declinata (Breb., Towns.) is a 

 dwarf plant with smooth sheaths, upper exceeding the obtuse- 

 angled 3-toothed lower pale, anth. twice as long as broad and 

 purple. It also is near plicata. Watery places. P. VI. IX. 

 Flote-grass. E. S. I. 



>. G. plicata (Fries); pan. compound, branches compound 

 nearly smooth erect with flowers divaricate with fruit, spikelets 

 linear of 7 20 oval-oblong rather acute fl., lower pale twice as 

 long as broad, sheaths compressed. JR. vii. 79. G.fluitans Sm., 

 E. B. 1520. P. 45. St. ascending, rooting below. Sheaths 

 rough, furrowed. L. glaucous, bluntish, plicate when young. 

 Ligule shorter. Pan. much branched ; branches with cal- 

 losities at the base, lowermost about in fives. Lower pales 

 with 3 teeth at the end. Anth. about 3 times as long as broad, 

 cream-coloured, fuscous when empty. Stagnant water and wet 

 places. P. VI. VIII. E. S. r- I 



37. SCLEKOCH'LOA Pal. de Beauv? 



* Glumes with 3 veins. 



f Panicle unilateral. 



1. S. marit'ima (Lindl.) ; pan. branched, lowermost branches 

 in pairs or single, branches ultimately erect, spikelets linear 

 adpressed 4 8-flowered, rachis terete, lower pale blunt api- 

 culate, midrib reaching the tip, stoloniferous. E. B. 1104. 

 P. 42. Glyceria M. & K. Root fibrous, with ascending 

 prostrate or rarely rooting leafy stoles. L. involute ; the 

 central ridge on their upper surface strongly marked the others 



1 Mr. Townsend now regards this as a hybrid, G.fluitansXplicata. 

 H. & J. G. 



2 See Crepin, Notes Fl. Belg. v. 155-214. 



