FESTUCA 585 



This awnless, long, narrow-leaved plant is widely distributed through 

 the county, but is more frequent than the type in the sandy tracts of 

 the south-west. Were it not for Professor Hackel's decided opinion 

 I should have kept it as a distinct species. It sometimes occurs with 

 the type, and with us there appears to be less difficulty in discriminating 

 the two plants than there is in separating forms of F. i-ubra from 

 F. ovina. 



2. Ock. Boar's Hill. 3. Pang. Heath Wood. Hermitage. 



Cold Ash. 4. Kennet. Aldermaston. Greenham. Ufton. 



Burghfield. Mortimer. Wickham. 5. Loddon. Common 



about Sunningdale and Ascot. Bracknell. Ambarrow, the 

 author in Exch. Club Rep. 1892. Sandhurst. Sunninghill, the 

 author in Rep. of Bot. Exch. Club, 1888. Windsor Park. Bagshot. 

 Broadmoor. 

 Var. VULGARIS, Koch, Syn. Fl. Germ. 812 (1837% 

 This is a common plant on the chalk downs in the Isis, Ock, Pang, 

 Kennet, and Loddon districts. It offers various modifications. 



Sub-var. firmula, Hackel, 1. c. 87, occurs as a larger plant with 

 straddling culms on Frilford Heath, where the plant is rather glau- 

 cescent, and has much of the appearance of the trachyphylla form of 

 duriuscula. In the Kennet district it occurs at Padworth, and in the 

 Loddon near Park Place and Bisham. In Oxfordshire it is common in 

 fields under Stow Wood. 



Var. DURIUSCULA, Koch, Syn. Fl. Germ. 812 (1837), has been gathered 



near Newbury by Mr. Jackson, and I have it from Padworth and near 



Henley. Professor Hackel says that the IS'ewbury plant is somewhat 



intermediate between var. duriuscula and var. vulgaris. 



Var. DURIUSCULA, sub-var. trachyphylla, Hackel, 1. c. 91. 



2. Ock. On a piece of old pasture near the railway, not far from 



Eadley Station. Frilford. 4. Kennet. Padworth. 



Professor Hackel tells me that Festuca caesia, Sm. has leaves which have 

 a coating of wax ; this is absent from the leaves of sub-var. trachyphylla. 

 F. ovina is found in all the bordering counties. 



[P. HETEROPHYLLA, Lam. Fl. Fr. iii. 600 (1778), not of Haenke or Host. 



F. rubra, sub-sp. heterophylla, Hackel, Mon. Fest. 130. 



Was found by me in the pleasure-grounds of Chiselhampton House, Oxford- 

 shire, growing with Liliuvi Martagon and TidijJa sylvestris, but Mrs. Pocbin 

 was not aware of grass being sown there. It has also been recorded for Hants 

 and Surrey, but doubts have been expressed as to its being native.] 



P. rubra, Linn. Sp. PI. 74 (1753), and Herb. 



F. duriuscula, Syme and Sm. in part. 



Top. Bot. 495. Syme, E. B. xi. 145, t. 1785. Nyman, 827. Fl. Oxf. 348. 



Native. Pascual, &c. Dry pastures, roadsides, dry woods and heaths, 



wall-tops, &c. Locally common and widely distributed. P. 



June-August. 



