264 
THE FLORA OF WARWICKSHIRE. 
P. pusillus, Linn Small Pondiveed. 
Native : in canals and pools. Very rare. July. August. 
I. About Tamworth, Warwickshire, With. (ed. 2), 176. Meercote 
Mill Pool; Oldbury Reservoir. 
II. In the old canal, Brownsover ! R.S.R., 1878. Canal, Warwick and 
Emscote, II. B. Abundant in the canal near Bishopton and 
Wiimcote; also in the old canal near Rugby Wharf and 
Newbold-on-Avon. 
A narrow-leaved form, approaching var. tenuissimus , with the 
type, in the Wiimcote Canal. 
P. pectinatus, Linn. Fennel-leaved Pondweea. 
Native : in pools and canals. Locally common. July, August. 
I. Sutton Park, in Bracebridge Pool, 1880. All through the Tam¬ 
worth Canal, from Tyburn ; the Warwick Canal, from Olton ; 
the Stratford Canal, from Shirley Heath. 
II. Near the canal bridge, Saltisford ! Perry FI.; old and new canals, 
near Newbold-on-Avon ! 11. S. R., 1877 ; near Hatton, Holy- 
well, Bearley, and Stratford-on-Avon; Birdingbury. Very 
abundant in the pool in Combe Abbey grounds. 
A form closely approaching the var. b. scoparius Mr. Bromwich 
finds near Warwick and I find near Stratford-on-Avon. I 
believe it is an intermediate form. 
Var. c. fiabellatus. Very local; rare in flower. 
I. Stratford Canal, near Hockley and Shirley Heath ; Warwick Canal, 
near Solihull; canal near Atlierstone. 
II. Longford, Stoke Heath ! Herb. Perry , T. K.; near Warwick ! and 
Hatton, H. B. Tredington ; Halford, Neivb. Rowington Canal, 
canal near Bearley, Bishopton, and Stratford-on-Avon ; canal, 
near Tardebigg; canal, near Sowe Waste; canal, Radford 
Semele; Birdingbury Wharf. 
ZANNICHELLIA. 
Z. palustris, Linn. Common Horned Pondiveed. 
Native : In rivers, ditches, pools, and canals. Local. June to 
August. 
I. Ditches, Water Orton ; River Cole, near Chelmsley Wood ; drains 
on Colesliill Heath ; spring pool, Kinwalsey ; Marston Green ; 
River Blythe, Stonebridge ; Honily. 
II. Kinwarton ; Oversley, Purt. ii, 484 ; brook at the Woodloes, H. B ., 
Exch. Club Rep., 1875 ; Compton Verney, II. B.; Honington, 
Neivb. Alveston Heath ; canal, near Stratford-on-Avon ; Strat¬ 
ford Canal, near Kingswood ; stream, Worsley Bridge, Stone- 
leigh ; old canal, near Newbold-on-Avon; small pool, near 
Willoughby, Rugby. 
The plants at Water Orton and the brook at the WoodloDS belong 
to a form intermediate between palustris and pedicillata, dis¬ 
cussed in the Exchange Club Report, 1875, pages 28-29. The 
variety brachystemon , Gay, is the most common form in this 
county. 
ALISMACEvE. 
TRIGLOCHIN. 
T. palustre, Linn. Marsh Arrowgrass. 
Native : In marshes, damp meadows, and near pools, &c. Local. 
June to August. 
