418 GEAMINE^, [Aira.. 



2. A- prsecox Linn, — ^arh/ Sair- Grass. 

 Airopsis prtBcox Fries — Avena praoox Beauv. 

 Districts I. II. III. IV. V. VI. VII. VIII. IX. X. XI. XII.. 

 Lat. 51i°-55J°- Thjoughout Ireland. Type, British. 



Heaths and dry hanks ; frequent. Fl. May. Caloifuge B. 



Sea-level in If. Derry and S. Cork. To 1660 ft. in Down 

 {S. ^P.) ; to 2100 ft. in Duhlin (iV C). 



DESCHAMPSIA Beauv. 



1 . D. csespitosa Beauv. — Tufted Hair- Gfrass. 



Aira ctsspitosa Linn. 



Districts I. II. III. IV. V. VI. VII. VIII. IX. X. XL XII.. 



Lat. 51i°-55i°. Throughout Ireland. Type, British. 



Damp and boggy meadows, woods, &c. ; frequent. M. July-Aug. 



Sea-level in IST. Deny and in S. Cork. To 2680 ft. in Mayo, 

 and to 3000 ft. in Wicklow {Mart). 



Far. psEtrDO-ALPiNA Syme. — I. On Slieve Mish and on Man- 

 gerton, Kerry : R. W. S. i88g. 



B. Oilpina Ecem. & Schult. 

 Aira alpina Linn. 

 Districts I. — — — — — — VIII. — — _ _ 



Lat. 52°-53J°. Kerry and Mayo only. Type, Highland. 



Damp, rooky places on mountains; very rare. Fl. July. 



I. Near the summit of Carrantuohill {More) : Ree. Add. Frequent 

 on the clifEs of MagiUicuddy's Eeeks : Hwrt 1882. On Baurtregaum, 

 KeiTj : Sort 1881 a. On Brandon mountain : ^^^^/(ycJo. Upper 

 part of the Horse's Grlen, Mangerton {S. N. Ridley) : Journ. of 

 Bot. 1884. — VIII. On Mweelrea, Mayo : Sa/rt 1883 «■ 



From 2500 ft. to 2100 ft. in Mayo {Hart); 3370-2550 ft. in 

 Kerry {More 8f Ha/rt). 



There is reason to suspect that some of the foregoing records are 

 referable to the variety PSEta)o-Ai.piifA of the preceding species. 



2. D. discolor Eoem. & Schult. — Marsh Hair-Grass. 



Aira uliffinosa "Weihe — Airasetacea Huds, 



Districts — — — — — — — VIII. — — — 



Lat. 53J°-53J°. County Galway only. 



Lowland. Marshy places ; very rare. Fl. July. 



