6o6 THE BOTANICAL EXCHANGE CLUB OF THE BRITISH ISLES. 
with its roots in the running water of small springs or in rock 
ledges upon which water is dripping from the cliffs above. In the 
latter place it assumes a larger and more robust form. It seems 
frequently not to be tinged with purple. — McTaggart Cowan, 
Jun. Correct. — E. Hackel. The flowers are not sufficiently 
tinged with purplish or violet brown. I have a poor opinion of 
this variety, which occurs in high alpine bogs and rills, but 
shades off gradually, as is illustrated by these specimens. — 
Edward S. Marshall. 
Poa bulbosa, L. Littlestone-on-Sea, E. Kent, May 1910. — 
G. Claridge Druce. Correct. — E. Hackel. 
Poa alpina, Linn. [ref. No. 92]. Ben Lawers, Mid Perth, 
v.-c. 88, September 5, 1910. — McTaggart Cowan, Jun. 
Poa glauca, Vahl. [ref. No. 76]. Between Ben More and 
Am Benein, v.-c. 88. September 9, 1910. — McTaggart Cowan, 
Jun. 
Poa glauca^ Vahl. [ref. No. 3484]. Ben More, v.-c. 88 Mid 
Perth; local, at about 3,000 feet, July 16, 1910. — Edward S. 
Marshall. With regard to the above plants of Messrs. Cowan 
and Marshall, Dr. Hackel writes ; — “ P. caesia, Sm., I am not 
quite sure of the identity of P. glauca^ Vahl., with P. caesia, Sm., 
I therefore prefer the latter name.” 
Poa nemoralis, Linn., var. angustifolia, Parn. [ref. No. 85]. Old 
wall near Killin, Mid Perth, v.-c. 88, September 1910 . —Mc- 
Taggart Cowan, Jun. The uppermost knot should be near 
the panicle, which is not the case in my plants. Very weak, and 
evidently starved ; certainly not worth a special name. — Edward S. 
Marshall. P. nemoralis vulgaris, Gaud. — E. Hackel. 
Poa pratensis, L., var. subccerulea (Sm.). On the Portsmouth 
road between Cobham and Esher, Surrey, June 5, 1910. — A. B. 
Jackson and J. Fraser. Yes. — G. Claridge Druce. Leaves 
too long and narrow ; only tending towards var. subccerulea, I 
believe. — Edward S. Marshall. Correct. — E. Hackel. 
Poa pratensis, L., var. subccerulea (Sm.) [ref. No. 4201]. 
Coast of Bally vaughan, Co. Clare, June 1909. A typical form 
of the coast. Prof. Hackel assents to the name. He tells me 
that the earliest name which conforms to the Vienna Rules 
seems to be P. pratensis, var. minor, Wahl., ‘ FI. Upsala, ’ 
33, 1820, but P. pratensis, var. humilis, Griseb., is very near to it. 
