Mr. F. Townsend on a supposed new species of Glyceria. 105 



simple, lowermost mostly in pairs ; rachis smooth ; spikelets 



linear, of 7-12 acute florets ; outer pale oblong-lanceolate, length 



exceeding twice its breadth : apex acute, somewhat apiculate ; 



anthers five times as long as broad; sheaths even; careopsis 



linear-elliptical. 



Var. /3. Inflorescence spiked. 



Rachis perfectly smooth, never swollen as in G. plicata. Leaves 

 pungent ; sheaths roughish ; ligule obtuse, frequently obscurely 

 three-toothed. Panicle subsecund, elongate ; branches not bear- 

 ing more than five spikelets, one branch only of each of the lower- 

 most clusters bearing several spikelets ; uppermost spikelets of 

 the branches and rachis mostly sessile or upon short rigid pedi- 

 cels ; pedicels more or less scabrous. Inner pale equaling the 

 outer in length or surpassing it. Anthers purple, sometimes 

 yellow. Careopsis linear- elliptical. 



It flowers from June to September, sometimes bearing a second 

 crop late in the year, and is universally distributed. It grows in 

 stagnant and running water. 



2. G.pedicellata. Panicle simple, elongate, subsecund; branches 

 simple, always spreading, lowermost mostly in threes; rachis 

 smooth ; spikelets linear, of 7-16 obtuse florets ; outer pale ob- 

 long, twice as long as broad : apex entire or slightly and irre- 

 gularly denticulate-crenate ; anthers three times as long as 

 broad; sheaths sulcate. 



Rachis perfectly smooth, never swollen as in G. plicata. 

 Leaves plicate, acute ; sheaths roughish ; ligule obtuse, somewhat 

 apiculate. Panicle subsecund, elongate; branches not bearing 

 more than six spikelets, one branch only of each of the lowermost 

 clusters bearing several spikelets ; spikelets more or less stalked ; 

 pedicels slender, flexible. Outer pale strongly ribbed when dry, 

 more membranous than in the other two species ; inner pale 

 rather shorter than the outer. Squamulse with an inflated ap- 

 pearance. Anthers always yellow ; lips incurved after bursting. 

 The careopsis has not been observed. 



It flowers from June to September, and has been noticed in 

 several places in Cambridgeshire, and at Dovedale near Blockley, 

 Worcestershire. It is found in stagnant and running water. 



3. G. plicata (Fries!). Panicle compound; branches compound, 

 always spreading, lowermost mostly in fives, uppermost 

 crowded; rachis scabrous above; spikelets linear, of 7-12 

 rather obtuse florets ; outer pale oval, not twice as long as broad : 

 apex obtuse-angled, obscurely three-toothed ; anthers twice as 

 long as broad; sheaths sulcate; careopsis roundish-elliptical. 

 Var. /3. Panicle simple. 



Rachis more or less rough from just below the panicle and 



