J 28 70. Chrysurus. 10. GR AMINES. PI. end. ph. 



D. Arundinace^. Rachis panicled ; locustcB single, 

 manyflowered ; glumes carinate ; ghimeUes of nearly the 

 same consistence as the glumes ; lower spathellule concave, 

 avvlshape at top ; bottom generally girt with hairs ; upper 

 2-ribbed ; styles 2. 



XXX. 71. ARUNDO. Pliny. Heed. 



Glumes 5 or 7-fiowered ; spathelles. alternate, unequal, 

 acute, shorter than the flowrets; lower Jlowret male or 

 neuter; glumelles naked; upper jlowret hermaphrodite; 

 glunielles girt at bottom with wool : lower spathellule long 

 awlshape ; iipper 2-cut, toothed ; lodicule truncate, fringed ; 

 stigmata aspergilliform ; cariopsis husked. — Panicle very 

 much branched, loose. 



Anmdo vallatoria. Bankside reed. 



Panicle loose ; locusfce upright, 5-flowered ; leaves and 

 sheaths smooth ; root creeping, 



Arundo vallatoria, Ger. em. 32 ; Raii Sjjn. 401, 1. 

 Hurundo vulgaris sive vallatoria. Park. 1202. 

 Arundo Phragmitis, Lin. S. P. 120. 

 Arundo paiustris, Salisb. Prod. 24. 



Watery places; perennial; July. 



Culm annual, erect, 6 feet high ; leaves spreading, glau- 

 cous underneath; ligtda very short; pa/iic/e rather erect, 

 purplish. 



Panicles dye woollen green ; cuhji forms a very durable 

 skreen in gardens against the wind, and is also used as a 

 foundation for plaster-floors ; the inner viemhrane of the 

 culm forms a very sensible hygrometer. 



|3. variegaia. Leaves variegated. 



E. AvENACE^. Rachis panicled ; locusfce fewflowered ;. 

 glumes carinate ; glumelles of the same consistence as the 

 glumes; lower spathellule awned; awn kneed, twisted; upper 

 2-keeled ; styles 2-cut. 



XXXT. 72. TRISETUM. Pcrsoon. Threehristle. 



Glumes membranaceous, 3 to 5-flowered; spathelles al- 

 ternate, nearly as long as the flowrets ; lower spathellule 

 2-cut, toothed, back awned above the middle; awn her- 

 baceous, flexuosc, rarc'ly j)laited; lodicule lanceolate, not 

 notched, bald; style 2-parted; stigmata j)lumosc, nearly 

 aspergilliform ; cariopsis slightly husked, furrowed. — Panicle 

 branched. 



