ATENA. KOSLEKIA. 431 



tranches, J?, erect S — 6 exceeding tlie glumes, I. rough. — B. S, 

 1204. P. 52.— Root fibrous. Height nearly 2 feet. St. usually 

 nearly round. L. usually short, narrow, acute. Pan.-hranohea 

 usually simple with only one spikelet. — ^. longifolia (Parn.) ; 

 1. much longer. — y. A. alpina (Sm.) ; st. often compressed and 

 sheaths keeled, pan.-hranches often with several 5 — 6-fl. spike- 

 lets, upper pale less acute, 1. broader. I believe that none of 

 these characters are permanent. E. B. 2141. P. 63. — A. 

 planiculmis of U. B. S. 2684 may belong to this species ; it 

 diifers by its gi'eatly compressed st., strongly keeled sheaths 

 and more branched panicle. — In a and j3 the lowest il. some- 

 times slightly falls short of the longer gl., in y exceeds it. — 

 Dry pastures and mountainous places. P. VI. E. S. 



4. A. pubes'cens (L.) ; pan. erect nearly simple, fl. erect 2 or 

 3 scarcely exceeding the glumes, lower /. and sheaths hairy. — 

 E. B. 1640. P. 53.— Oreeping slightly. Height 1—2 feet. L. 

 short, rounded behind the tip. — Chalky and hmestone districts. 

 P. VI. E. S. I. 



30. AEEHEisrATH'EEUM: Fol. de Beauv. Oat-grass. 



1. A. eldtius (M. & K.) ; 1. &a,t—JIol<ms Sm., E. B. 813. P. 

 25. — Height 2 — 3 feet. Root fibrous. Knots of the st. gla- 

 brous, sometimes downy. Pan. long, ultimately close. Spike- 

 lets greenish. — 0. A. hulhosum (Lindl.) ; base of the st.-with 

 swollen knobs, knots downy. P, 26.— Hedges and pastures. 

 P. VI. E. 8. 1. 



Tribe XI. Festucea. 



31. Teio'dia R. Br. Heath-grass. 



1. T. decum'bens (Beauv.) ; pan. racemose, spikelets few oval, 

 fl. about 4 scarcely extending beyond the glumes without awns. 

 —E. B. 792. P. 30.— St. 6—12 in. high. L. flat. Sheaths 

 rather hairy. Ligule a tuft of hairs. Spikelets few, 1 — 7. Gl. 

 smooth, coriaceous. Lower pale with 3 points, 5-ribbed, hairy 

 at the base. — Dry places and heaths. P. VII. E. S. I. 



32. Kcele'eia Pers. Crested Hair-grass. 



1. K. cristdta (Pers.) ; pan. compact spikelike interrupted 

 below, lower pale acute, 1. narrow rough at the edges ciliate. — 

 Aira L. E. B. 648. P. 19. — Root crowned with the undivided 

 sheathsof the old leaves. St. 6—18 in. high, downy particularly 

 in the upper part. L., gl. and pales downy or glabrous. Gl. 

 finely toothed on the keel. Lower pale finely toothed on the 



