FAGOPYRUM 429 



which occurs abundantly on the banks of the Thames in all the dis- 

 tricts, and is %videly distributed in low-lying parts of the county. 



Var. COENOSUM, Koch, I.e., is an intermediate stage of the aquatic 

 and terrestrial forms with decumbent stem ; it is rather frequent on 

 muddy margins of ponds, &c., as at Iflfley, Windsor, Abingdon, &c. 



P. amphibium occurs in all the bordering counties. 



P. Bistorta, Linn. Sp. PI. 360 (1753). Great Bistoii. 



BistoHa major, Gerard, 322. 



Top.Bot. 353. Syme, E. B. viii. 78, t. 1243. Nyman, 637. Fl. Oxf. 255. 



Native. Pratal. Diunp meadows and pastures. Very local, but 

 oftentimes occurring in considerable quantity. In the Kennet 

 district I think it is certainly a native. P. May- August. 



First record. P. bistorta, Snakeweed, Dr. Noehden, Mavor's Agr. Berks, 

 1809. 



1. Isis. Near Bablock Hythe. 



2. Ock. In Osney Meadow, between the Mill and Ferry Hinksey, 



Hewlett, in Baxt. Phaen. Bot. n. 5. (Probably in Oxfordshire.) 

 A very rare plant ; grows plentifully in an orchard by the 

 churchyard, Blewbury, in an orchard near Nail's bridge, and 

 in the parsonage orchard, Lousley in Russell's Cat. (^The orchards 

 in this district are often of considerable extent, as damsons, 

 plums, and cheri'ies are extensively grown. ) Between Kadley 

 and Abingdon near the railway. 



3. Pang. Bradfield, Jenkinson. 



4. Kennet. Field near Wickham Chapel, Dr. Bunny in Russell's Cat. 



Wickham Heath, near the Church, Weaver. Weston, Osmond. 

 Plentiful near Kirby Hall. Abundant near Little Common, 

 near Hungerford. Abundant at Beenham. Midgham. Green- 

 ham. Enborne. 



5. Loddon. Blackwater meadows, Pemiy. Arborfield, Tayler. Whist- 



ley Mill. 

 The flowers have a strong valerianaceous odour. 

 P. Bistorta is recorded for all the bordering counties. 



FAGOPYRUM, Gaertn. Fruct. ii. 182 (Tovirnefort, Inst. t. 290). 



**P. sAGiTTATUM, Glllb. Exor. Phji;. 11. 439 (1792). Buckwheat. 



F. esculentum, Moench, Meth. 29(1 (1794)' F. Fagopyrum, Karst. Deutsch. Fl. 

 522. Polygonum Fagopyrum, Linn. Sp. PI. 364. Fagopyrum, Dodoens. 

 Comp. Cyb. Br. 556. Syme, E. B. viii. 59, t. 1226. Nyman, 639. Fl. Oxf, 258. 

 Casual. Waste places, open places in woods where game is preserved. A. 



July-October. 

 First found in Berkshire by the author in 1882. 



1. Isis. Wytham. Buscot. 2. Ock. Grandpont. Didcot. Pusey. 



Ferry Hinksey. 3. Pang. Garden weed at Beedon, W. M. Rogers. 



4. Kennet. Sandleford, Weaver. Wickham, M7-s. Batson. Calcut 

 Park. Near Southcote. Snelsmore. 5. Loddon. Arborfield, 



