GKAMINA. 



405 



ii. Florets 5 or more, in a fully developed 

 spicule. Sp. 11-15. 



B. Plant perennial. Glumes 5-9-nerved. 

 Sp. 16. 



C. Plant annual. Glume 5-9-nerved. 



i. Base of Outer Pale to middle covered 



with long hairs. Sp. 17-19. 

 ii. Base of Outer Pale hairless. Sp. 20. 



A. Plant perejinial. Glumes 1-3-nerved. 



i. Florets 7iot so many as 5. 



a. Ligule long, acute, nearly entire. 



1. lucida. Pan. conti'acted, nearly simple : 

 longer branches 2-flowered. Fits. 2, bearded 

 at base, and both awned fi'om the middle. L. 

 hairless externally. Upper Ligules acumi- 

 nate, entire. Root fibrous, p. 6, 7. Moun- 

 tain meadows. Monte Baldo, Mountains of 

 Como. — Bert. 



2. pubescens. Pan. erect : longer bran- 

 ches 2-flowered. Fits, about 3, exceeding 

 calyx. Pale awned from middle, rough, stained. 

 L. flat, hairy on both sides. Root somewhat 

 creeping, p. 5^ 6. Calc. pastures. Not in 

 s. Italy. 



3. ametliystea. " Pan. racemose : longer 

 branches 2-flowered. Glumes 3-nerved. Fits. 

 about 2 ; the lower awned at one-third of its 

 length from the base, thin and silvery at top. 

 L. flat, hairy on both sides. Glumes nearly 

 ivnce as large as iu A. pubescens, stained at 

 the base. p. 5. Hills. Monte Baldo. s. 

 Tyrol." — Koch. 



4. Parlatorii. " Pan. nearly simple, spread- 

 ing when in flower. Spicules 2-3 -flowered. Fits, 

 all awned, rather shorter than calyx. Upper 

 part of Keel of Glume serrulate, scabrous. 

 Upper Pale with long ciKa. L. rigid, long, hair- 

 less. Sheaths mostly hairless. Stems tutted, p. 

 Col di Tende. Alps." — Parl. This is the A. 

 setacea of Pari., and according to him, A. 

 sempervirens of Koch and Bert., hut not of 

 Villars. 



b. Ligule very short, lacerate. 



5. alpestris. L. flat, hairy on both sides. 

 Pan. compound : the lowest branches 3-6- 

 flowered. Fits. 3-4, exceeding calyx. Outer 

 Pale 5-nerved, hairy at base. p. 7, 8. High 

 •pastures, e. Alps. A Trisetum, except for 

 the bearded seeds. 



6. sedeneusis. L. flat, short, haiiless. 

 Ligule truncate, not cihate. Pan. compound. 

 Spicules 2-3 -flowered, with a rudiment. Fits, 

 exceeding calyx. Upper Pale with very 



short cilia. Stems tufted, p. Canigou. 

 — Paul. / have a plant from the Canlal 

 like this, except that the ligule is divided into 

 dense short cilia. 



7. setacea. L. convolute-setaceous, hair- 

 less. Ligules reduced to a short fringe round 

 the ring at top of sheath. Sheaths usually 

 hairy. Fits. 2-3, rather exceeding calyx. 

 Outer Pale smooth, p. 7, 8. High pastures. 

 Dan. Mont Ventous. I have no doubt that 

 this is the A. setacea of Villars, from its per- 

 fect correspondence with the description and 

 figure of that author, and from the authority 



of 31. Requien, in whose company it was 

 gathered on Mont Ventous, and who is per- 

 haps better acquainted vdth the plants of Vil- 

 lars than any other botanist. The nature of 

 the ligule effectually separates it from the A. 

 setacea of Pari. I do not see, however, how 

 it differs from A. striata, whose character I 

 give below. 



8. striata. "Pan. compound, erect, con- 

 tracted, attenuate. Fits. 3 : the two lower 

 fertile, awned ; the upper barren, with a short 

 straight awn or none. Outer Pale shining, 

 quite hairless, cloven at top. L. rigid, narrow, 

 long, involute, quite smooth, except at the 

 mouth of the sheath. Ligule very short, trun- 

 cate, densly ciliate. Stems closely tufted, p. 



/3. filifolia. Sheaths covered with short 

 retrorse hairs."- — Pael. 



9. fallax. Pan. compound, spreading, at 

 last contracted. Fits. 3, all awned, somewhat 

 exceeding calyx. Outer Pale rough; inner 

 with short cilia. L. rigid, involute, haii'less. 

 Ligule very short, truncate, densely fringed. 

 Stems tufted, p. 4, 5. Dry hills. Sic. s. It. 

 The L. of this and of K. setacea, and probably 

 also of L. striata, break off very readily from 

 the sheath, leaving the base of the plant 

 covered with the truncate sheatlis. Something 

 of the same sort takes place in A. sedenensis. 



10. sempervirens. Panicled. Fits. 3, 

 complete, woolly at base. L. rigid, acute, in- 

 volute, evergreen, p. Vill. Notie of the 

 plants to vihicli this name has been since given 

 agree with the further description of Villain. 

 He compares it to the Arrhenatherum, and 

 says the stems are three or four feet high, and 

 the root-L. a foot long, and so tough as to 

 cut the fingers of one who gathers it incau- 

 tiously. The upper fioret is generally unpro- 

 ductive. 



ii. Florets of fully-developed Spicules 5 or 

 more. 



11. plamculmis. Pan. equal, long, con- 



