MONOCOTYLEDONS. GRAMINE.E. Phalaris. 163 



1 . A. odoratum, ' panicle spiked oblong, flowers upon short foot- 

 stalks larger than the awns. p. \\.-Pastures. 



3. HIEROCHLOE. 



Glume of 2 valves, 3-flowered. Perianth of 2 valves ; the lateral 

 florets staminiferous, triandrous ; terminal one perfect, diand- 

 rous. Br. 



1. H. borealis, panicle subsecund, peduncles glabrous, florets awn- 

 less, outer valves of the perianth ciliated at the margin, p. 28. 

 Mountains, rare. 



SECT. II. POACE.^. Brown in Flind. Voy. Glumes with one, 

 two, or many flowers ; either all perfect, or with the upper 

 flower abortive. Br. 



A. Glume \-flowered. 



4. NARDUS. 

 Glume none. Perianth of two valves. Style 1 . 



1 . N. stricta, spike erect slender, the florets all pointing one way. 



p. 21. Heaths. 



5. ALOPECURUS. 

 Glume 2-valved, 1-flowered; valves nearly equal, united at the 



base, acute. Perianth of one valve, awned at the base. 



1 . A. pratensis, culm erect smooth, panicle spiked cylindrical ob- 

 tuse, valves of the glume lanceolate acute hairy connate at the 

 base, awn twice the length of the perianth, p. 22. Pastures. 



2. A. alpinus, culm erect smooth, panicle in an ovate spike, valves 

 of the glume ovate abruptly acute hairy united at their base, 

 awn scarcely longer than the perianth, p. 22. Alps. 



3.A.agrestis, culm erect scabrous above, panicle spiked cylindri- 

 cal acuminate, valves of the glume acute almost glabrous united 

 as far as the middle, p. 22. Fields. 



4.A..geniculatus, culm ascending bent at the joints, panicle spiked 

 cylindrical obtuse, valves of the glumes united at the base trun- 

 cated slightly hairy, awn twice as long as the perianth, p. 22. 

 Meadows. 



6. PHALARIS. 



Glume 2-valved, 1 -flowered ; Jlowers with a double perianth. 

 Caryopsis invested with the inner hardened perianth. 



1. Ph. canariensis, panicle spiked ovate, valves of the glumes 

 boat-shaped entire at the point, ext. perianth of 2-valves.p.23. 

 Fields. 



2. Ph. arundinacea, panicle erect, branches patent, florets clus- 

 tered secund, ext. perianth of two very minute hairy valves. 

 p. 23. Margins of rivers, &c. 



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