AVENA 569 



AVETsTA, Linn. Gen. n. 85 (Tournefort, Inst. t. 267). 



A. pu\)escens, Huds. Fl. Angl. 42 (1762), not of Linn. Herb. Doicny 

 Oat Grass. 



Trisetum pubescens, Parnell, Gr. Scot. t. 53, 124, 

 Top. Bot. 481. Syme, E. B. xi. 74, t. 1737. Nyman, 811. Fl. Oxf. 339. 

 Native. Pascual. GlareaL Dry calcareous, gravelly, and chalky 

 pastures, or downs. Locally common. P. May-July. A very 

 beautiful species. 

 First record. A. puhesceyis, Mr. Fardon and Mr. Gotobed in the 

 Botanist's Guide, 1805. 

 1. Isis. Cumnor. On the side of the road going up Cumnor Hill. 

 Bablock Hythe. Buscot. Wytham. Coleshill. Near Inglesham. 

 Appleford. 

 ' 2. Ock. Shippon. On the bank going up Cumnor Hill. Frilford. 

 Marcham. Cothill. Pusey. Radley. Uffington. 



3. Pang. Streatley, Tufnail. Basildon. Bradfield. Purley. 



Hawpit Farm. Ilsley. 



4. Kennet. Newbury. Mortimer. West Ilsley. Padworth. Gibbet 



Hill. Walbury Camp. Bagnor. Kintbury. 



5. Loddon. Pig's Green Lane near Reading, Fardon. Meadows 



about Windsor, common, Gotobed. Winter Hill, on the Chalk, 

 common, Mill. Sandhurst. Waltham. Maidenhead. Sonning. 

 Park Place. 



In Sutherland and Eoss I have noticed a form with nearly glabrous leaf- 

 sheath, the var. glabra, S. F. Gray, Nat. Arr. ii. 131, the var. f/laberrima, Borb. 

 in Baenitz Herb. Europ., but I have not seen it in Berkshire. 



A. pubescens is found in all the bordering counties. 



A. pratensis, Linn. Sp. PI. 80 (1753), and Herb. Narroiv-leaved Oat Grass. 

 Trisetum pratense, Parnell, Gr. Scot. t. 52, not of Pers. 



Top. Bot. 481. Syme, E. B. xi. 75, t. 1738. Nyman, 8it. Fl. Oxf. 340. 



Native. Pascual, glareal. Dry chalky and calcareous pastures and 

 downs. Local. P. The stiff herbage of this handsome species 

 is a frequent feature on the northern escarpment of the Chalk. 

 May-July. 



First found by Mr. H. Boswell, 1866 ; recorded in Britt. Contr. 187 1. 



1. Isis. Idstone. Ashbury. 



2. Ock. Cherbury Camp. Frilford. Cothill. Letcombe Castle. 



Uffington and White Horse Hill. Chilton Downs. Blewbury. 

 Wantage Downs. 



3. Pang. Streatley, Bosivell. Ilsley Downs, W. M. Bogers. Pang- 



bourn. Sulham. East Ilsley. Compton. 



4. Kennet. Ilsley Downs. Catmore, W. M. Rogers. Hampstead 



