•21. CELASTRACE.E. 273 



'< fr^t. /^. j/. 4^41^. Staphylea pinnata, Li 



mn. 



Area (* * 3 * ^ .:^ * * * 10 * 12 13 14). 



Alien. In the case of this shrub we have a striking ex- 

 ample of the different inferences which may be drawn from 

 the same fact. Botanists seem pretty well agreed in re- 

 garding this in the light of an introduced and scarcely 

 natui-alized species ; and yet Mr. Chorley pronounces it 

 " wild at ^[^^nsthwaite hedges, near Winandermere," and 

 IVIi-. Hailstone thought it to be " truly indigenous in York- 

 shire." ■ A. ,*t5^' /4sf «^C«^ P'>t*/ifH./L,>Ui2SU,^ Ct/^tyZ/^ 2'^^gfl^,^' 



r^ ifuo u. 246. Rhamnus catharticus, Linn. f>^^i^^ ^>=c4,^'^,^ " 



Area 12345678* 10 11 12 13** (16). 



South limit in (Devon ^), Dorset, Wight, Kent. 



North limit in Dumfries-shire and Durham. 



Estimate of provinces 12. Estimate of counties 40. 



Latitude 50 — 55. EngUsh type of distribution. 



Agrarian region. Inferagraiian — Midagrarian zones. 



Descends to the coast level, in the Channel province. 



Ascends to 150 or 200 yai'ds, in North England. 



Range of mean annual temperatm'e 51 — 47. 



Native. Sylvestral, &c. Not a common shrub in 

 England, and recorded only from Diunfiies-shire, in Scot- 

 land, with the exception of " plantations in Bute," whence 

 I have a specimen given to me by Professor Balfour, but 

 where we may hold it planted rather than native. It may 

 rise sufficiently high in the north of England to justify a 

 similar extension of its range of zones and temperature 

 with that suggested for the Euonymus. 



2 N 



