MONOCOTYLEDONS. GRAMINE^E. PhalariS. 163 



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

 stalks larger than the awns. p. 11. — 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. horealis, 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 \\\\.\\ one, 

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

 flower abortive. Br. 



A. Glume \-Jiowered. 

 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. alpinuSf 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. 



S.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.gc7iiculatus, 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-xii\vcd, 1-flowered; ^ott-er^ with a double peiianth. 

 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, cSc. 



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