GllAMINA. 



40;: 



volute, pungent, with a line of separation from 

 sheath, at which they afterwards break off. p. 

 8. Muddy shores, s. Eiig. n. Fr. 



2. alterniflora. Smooth. Spikes 4-10. 

 Glumes ciliate ou keel. L. flat, convolute at 

 point, continuous with sheath, p. 8. liiver- 

 mouths. Southampton. Bayonne. 



Tribe X, AVENACEJE. 

 880. AIRA. 



A. Awn geniculate, clubbed. Knee bearded. 



1. canescens. L. convoluto-setaceous. Li- 

 gule oblong, truncate, p. 7- Sand. e. Eug. 

 Fr. G. Shores of Ticino. 



2. articulata. L. flat, convolute when 

 dry. Ligule oblong, subacute, p. 5. Sandy 

 coasts of Mdt. 



3. Awn geniculate, not clubbed nor bearded, 

 sometimes wanting. 



i. Outer Pale enditig in two long, rough 

 points. 



3. praecox. Pan. somewhat spike-like. Fits, 

 nearly equal. L. setaceous, a. 4-6. Sand, 

 very rare in Sw. and n. It. Not in s. It., 



4. multiculmis. " Densely tufted. Culms 

 simple. Pan. contracted. Pits, shorter than 

 the glume ; the upper one stalked, a. Bogs. 

 Utrecht. Belg." — Lejeune. Has the habit of 

 A. canescens and the Fl. of caryophyUea. 



5. caryophyUea. Pan. trichotomous, 

 branched, at last divaricate. Fits, included in 

 calyx, hairy at base ; each with a geniculate 

 awn, exceeding glume. L. setaceous, a. 5, 6. 

 Sand or gravel. 



6. capillaris. Panicles trichotomous : 

 branches capillary ; (secondary long. Glumes 

 entire, obtuse, Parl.,) spreading. Fits, in- 

 cluded, sessile, without hairs ; the upper one 

 alone awued. a. 4, 5. Dry. Hyeres. Cors. 

 Italy. 



7. cupaniana. " Panicles trichotomous : 

 branches capillary, spreading ; secondary very 

 short. Glumes erose, obtuse, but often with 

 acumen. Fl. included, the upper alone awned. 

 Awn nearly twice as long as calyx, a. 4, 5. 

 Calc. hills and sandy shores. Sic." — Parl. 



ii. Outer Pale denticulate, [not bifid,) about 

 as long as glume. 



8. flezuosa. Pan. spreading. Outer Pale 



hardly nerved, with a tuft of strong hairs at 

 base. Awn nearly from base. Stalk of in ■ 

 ner Fit. not one-fourth as long as floret. L. 

 setaceous, p. 6, 7- Hill pastures. 



9. uliginosa. Panicle erect, spreading. 

 Outer Pale awned near the base. Stalk of 

 inner Fit. about half as long as floret. L. very 

 narrow, flat or folded, p. 8, 9. Boggy. 

 e. Friesland. Westph. 



10. alpina. Pan. dense, suberect. Stalks 

 smooth. Awn from near the tip of outer pale, 

 short, or included. L. involuto-subulatc. 

 Sheaths quite smooth, p. 6, 7- Very high. 

 Mountains of Clova. Ben Lomond. Shore, 

 Dundee. 



C. No awn. 



11. Tenorii. Pan. trichotomous : branches 

 divaricate. Outer Pale hard, rough, nerveless, 

 nearly entire, about equalling obtuse mem- 

 branous glume, a. 4, 5. Bry hills. It. 



12. minuta. Pan. trichotomous, widely 

 spreading. Out^r Pale firm, with strong rough 

 nerves, denticulate, about equalling glume. 

 a. 3. Bry. Rome. Flor. Cors. 



13. globosa. Pan. compact, erect. Glumes 

 smooth, hemispherical. Outer Pale hairy and 

 lacerate at top, scariose, without nerves. Culm 

 erect, a. 4, 5. Sand. Dax. Frejus. Toulon. 



14. a^rostidea. Pan. lax. Outer Pale 

 scariose, nerveless, slightly 3-lobed, othenvise 

 entire, hairless. Culm geniculate, creeping, a. 

 4,5. Moist grassy. Britt.Anjou.Fontainebleau. 



15. insularis. "Pan. much branched, 

 difiiise : branches somewhat trichotomous, ca- 

 pillary, spreading. Glumes rather lax, erecto- 

 patent in the flower ; in fruit nearly twice as 

 long as seed. Anthers short. Cuhn genicu- 

 late at base, creeping. L. flat. a. 6, 7- Moun- 

 tain pools. Sic." — Parl. 



Boubtful. 



16. oryzetorum. Pan. erect. Fits. 3, 

 smooth, with a very short awn, exceeding ca- 

 lyx. Ligule truncate, very short. p. ? 6. 

 Pice-grounds. Verona, very rare. Pollini 

 thifiks it may be a var. of Festuca elatior. 



17. Iiagascse. " Pan. lax, trichotomous, 

 capillary, somewhat fastigiate. Fits, awnless, 

 shorter than the keeled glumes, a. Cors. ?" 



KUNTH. 



881. DESCHAMPSIA. 

 1. cssspitosa. Pan. difluse, broadly pyrami- 



3 F 2 



