138 LEMNACE/E ALISMACE/E. 



ARACE/E. 

 Arum italicum, Mill. 



3. Cliff west of Nolland, one and half mile west of Polperro. 



m 1918, W. B. C. Perrycoste. 



5. Trevowah and Treago; south of the Gannel, Crantock, 



Vigurs. 



*Dracunculus vulgaris, Schott (Arum Dracunculus, Linn). Alien. 

 Garden origin. 5. Hedge, Penwortha Coombe near Perran- 

 porth, Bunney, B.E.C., 1918, p. 309. 



LEMNACE/E. 



Lemna trisulca, Linn. 



The first record (Flora) should read : W. P. Cocks in Poly- 

 technic Report, 1849, f>. 93. He there mentions Hydra vul- 

 garis as living on the under surface of the plant in the marsh 

 at Gyllyngvase, Falmouth. 



8. Pool, Chy-an-hal Moor, 1921, W. Watson., 



ALISMACE/E. 



Alisma Plantago-aquatica, Linn. 



3. Marsh, Par, Medlin. 



4. Pond between St. Endellion and St. Minver, 1915, Thurston. 



6. Swamp, Very an, 1913, Thurston. 



7. Poldhu Valley, 1914, Thurston. 



8. Near Madron Well, 1913, Rees. 



A. lanceolatum, With. 



3. Marsh, Par, 1919, Rilstone. 



5. Abundant, with A. Plantago, on roadside between Perran- 

 porth and Bolingey, 1916, Thurston. 



Professor Gliick agrees with me ... in considering that 

 lanceolatum is not specifically distinct. Alisma Plantago- 

 aquatica, L. var. latifolium, Kunth, is an analagous variety 

 on one side, as the variety lanceolatum is on the other side 

 of the species." Druce, B.E.C., 1910, p. 509. 



