Populus.] AMENTIFEE^. 273 



9. On the north side of Ben Bulben, Sligo, at 1500 feet ; 

 -D.J/. 



Another mountain willow, closely allied to S. procimibens, 

 grows with it on Ben Bulben, but we have not yet seen 

 satisfactory examples. 



20. S. herbaeea (Linn.) Least Mountain Willow. 

 Districts 1 2 - 4 - - - 8 - 10 11 12 

 Lat. 51°-56°- From South to North of Ireland, 

 Type in Great Britain, Highland. 



Grassy and rocky places on mountain ; locaL Fl. June. 



1. On the top of Mangerton Mountain ; Wade Bar. On 

 - Sugar-loaf Mountain, Glengariff ; /. C. — 2. Top of Galty- 

 more, Tipperary ; D. M. — 4. Summits of Thonelagee and 

 Lugnaquilla, in "Wicklow ; Flor. EXb. — 8. On Nephin, from 

 1950 feet upwards ; Flor. Uht. On the top of Nephin Beg ; 

 D. M. — 10. On Dart mountain ; Admiral Jones (probably 

 extending to Tyrone as well as Derry). — 11. On Bulben moun- 

 tain, Inishowen ; Wade Bar. Barnesmore mountains; Admiral 

 Jones. On Slieve League (from 1800 feet to the top). On 

 Errigal (from 1700 feet to the top). Top of Muckish ; Fhr. 

 Ulst. — 12. On Slieve Donard (from 1800 feet to the summit) 

 and Slieve Namhady ; Flor. Ulst. On Dart mountain, and 

 on Clontygearagh, Derry. On the north side of Slieve-namon, 

 Antrim ; D. M. Summit of Slieve Nanee, at 1850 feet (Mr. 

 Templeton) ; Flor. Ulst. 



Eanges from 1200 feet in Derry to more than 3000 feet 

 on Galtymore, &c. 



POPULUS Linn. 

 1. P. trenmla (Linn.) — Aspen. 

 Districts .1--456-89 10 1112 

 Lat. 51°-56°. From South to North of belaud. 

 Type in Great Britain, British. 



Woods, heaths, and rocky places ; not unfrequent. Fl. 

 March, April. 



Truly wild in the mountain glens and rocky places of 

 the west and north. Often plstnted in the more level and 



