222 86. GRAJUXA. 



1346. Festuca aeundinacea, Schreb. >^/^. S"^. 

 1346*. Festuca elatior, Aut. 



Area 1 2 3 4 5 * 7 8 9 10 11 * 13 14 15 16 * 18. 



South limit in Cornwall, Isle of Wight, Kent. 



North limit in Shetland, Orkney, Hehrides. 



Estimate of provinces 18. Estimate of counties 75. 



Latitude 50 — 61. British tjTpe of distribution. 



Agrarian region. Inferagrarian — Superagrarian zones. 



Descends to the coast level, in the Peninsula. 



Ascends to 400 yards, in East Highlands. 



Range of mean annual temj)erature 52 — 44. 



Native. Pratal, &c. Again it is to be feared that the 

 geographical apj)lication of a name is here in i)art and 

 unavoidably substituted for the real distribution of a 

 species. I am quite in doubt whether the names " anin- 

 dinacea, elatior, pratensis, loHacea " include three or two 

 si^ecies. Assuming two species only, the names should be 

 apportioned to them by pairs ; " arundinacea and elatior" 

 being one species, "pratensis and loliacea " being the 

 other. Unfortunately this has by no means been the con- 

 stant use of the names in books ; that of " elatior " having 

 been applied i^romiscuously to luxuriant states of F. pra- 

 tensis and to another plant, which latter may or may not 

 be a smaller state of the gi-eat F. arundinacea of the coast. 

 In the London Catalogue, thu'd edition, " arimdinacea " 

 intends the large coast plant, as yet known only in very 

 few stations, while the name " elatior " applies to any- 

 thing intermediate between the coast plant and certain 

 " pratensis." In Babington's Manual, however, the name 

 " F. arundinacea " intends both the coast and the inter- 

 mediate forms, — anything which is not called "pratensis" 



