EUPHORBIACE^. 303 



c. I. Between Port "Wrinkle and St. Germans Beacon. Waste spot 

 near Notter farm-house. Tideford. Between Filbridge and 

 Wooton Cross. Derniford. Pillaton. 

 II. Between Cremyll and Millbrook. Between Torpoint and St. 

 Johns. Antony. 

 D. III. Banks by the Plymouth and Saltash Road. Tamerton Foliot. 

 Beer Ferrers. Between Roborough Down and Walkhampton. 

 IV. In a limestone quarry at ^Yixenford. Egg Buckland. 

 V. Newton Ferrers. Cornwood. 

 VI. Cultivated ground above Bigbury Bay. Mothecombe. Kingston. 

 Holbeton. 

 Perhaps this might be placed with the ' very common ' species. 



E. Lathyris, L. Alien or Casual. About a dozen plants in a Avaste 

 plot of ground, Blaxton (District iii.), 1878 ; one in cultivated ground at 

 Fursdon, Egg Buckland (iv.), 1861. If allowed to seed in a garden it 

 will prove a persistent weed. 



MERCURIALIS, Tournef. 



629. M. perennis, L. Perennial Bog's Mercury. 



Native ; in woods, copses, and on shady hedge-banks. Very 

 common. February to April. Area general. 

 Occurs very near the town of Plymouth, as by the old channel of the 

 leat beloAv Mutley Plain, near Lipson Terrace, &c. In some of our damp 

 woods it is in profusion. 



I have seen the Marsh Titmouse {Parus palust7'is) feeding on its seeds. 



630. M. annua, L. Annual Dorfs Mercury. 



Colonist or Casual ; in waste spots and in garden gTound. Very 



rare, July to September. 



D. IV. On the refuse from the quarries at Cattedown ; Banks, FI. 



part 6. Quarries, Plymouth, possibly imported with ballast ; 



Hore, in Phyt. i. 163. Several plants at Cattedown, July, 1864. 



var. h. amhigua. 

 D. III. A weed in a vegetable garden at Stoke Damerel, 1863 ; Jour. 

 Bot. i. 378 ; seen there, 1875, but perhaps now extinct. 

 This does not seem to be permanent at Cattedown, and whenever it 

 has appeared there it may have sprung from introduced seeds, as the 

 locality is one where ballast gets deposited from small vessels. At Stoke 

 the var. amhigua has certainly renewed itself by seed for a series of years. 

 First record : Banks, 1830. 



