FLORA OF OXFORDSHIRE. 281 
5. Isis. South Leigh, Sid. 
6. Thame. Cowley, Sib. Left-hand side of Cowley Marsh, H. Bos. 
about 1864. 
Berks. Bucks, Gloster E., near Kelmsford. Warwick, very rare. 
[Damasonium stellatum, Rich. Actinocarpus Damasonium, R. Br., 
should be looked for in the pools on the Chilterns; it has been found in 
Berks on the Winkfield Plain, near Windsor; ditches about Southcote 
near Reading ; and in Bucks on Napford Common.] 
SAGITTARIA. L. 
S. sagittifolia, D. Arrowhead. 
Top. Bot. 410. Syme, E. B. ix. 71. 1436. Nym. 679. Bx. 109. 
Native. Shallow streams. Common. P. July, Aug. 
First record, Gerarde, 1597. 
‘Sagittaria major. Greate Arrowe Head and Sagittaria minor angustt- 
folia, small narrowe leaved Arrowe Head. These herbes do grow... in 
the ditches neere the walls of Oxford.’ Also in Gerarde Emac. and 
Merrett, who describes it as S. longissima cuspide pedali, Arrowhead with 
a leaf a foot or more long, 1666. 
3. Swere. Cherwell and Canal, Gull. Twyford, Mill Meadow, A. Fr. 
Somerton. 
4. Ray. Marston, Hb. R. Linton. Cherwell, Hb. Lawson. Oddington, 
Heyford, abundant in a pond on Otmoor. 
5. Isis. Godstow, W. Whitwell. Bladon, Handhborough, Port Meadow, 
abundant, Christ Church Meadow and westward to Kelmscott. 
6. Thame. Thame, Hb. Bx. Dorchester, Sandford, etc. 
7. Thames, Goring, Caversham, etc. 
Sibthorp followed the old writers in separating 4 small leaved form 
(referred to by Gerarde) as parvifolia, and gives Dorchester as a locality ; 
Baxter also found it in the Canal between Highbridge and Heyfield’s Hut, 
and the same with a series of connecting links with the type may still be 
found about Oxford. 
‘This is one of the handsomest of British aquatics, whether as regards 
the elegant spear-shaped leaves of glossiest green, or the flower spikes 
rising in pyramidal form from the water with strong fluted stems, 
and presenting altogether a striking resemblance to a highly decorated 
gothic finial, This very graceful plant is found in abundance about 
Oxford, but there are few parts of the Upper Thames which it does not 
enliven by its luxuriant foliage.’ Hall’s Bool: of the Thames. 
TRIGLOCHLIN. L. 
T. palustre, L. Marsh Arrow Grass. 
Top. Bot. 412. Syme, E. B. ix. 65. 1433. Nym. 680. Bx. 60. 
