244 ANNALS OF SCOTTISH NATURAL HISTORY 



flowing from Loch-na-gar into the head of the Dhu Loch. It thrives 

 in crevices of the rocky beds and margins of mountain streams, and 

 on the stony shores of alpine lakes, up to 1000 metres in Aberdeen- 

 shire. Corrie on Ben Dorean, above Glen Lyon, at 1000 m. or 

 higher (\V. A. Shoolbred, 1891). 



7. Hieradum senescens, Backh. Ben Nevis, Aonach Beg, above 

 915 m. (E. S. Marshall, 1896, in Herb. Brit.), on grassy mountain 

 ledges and in crevices of the rock. Probably high up on other 

 mountains, but no definite heights are given. 



8. Hieradum chrysanthum, Backh. It occurs on grassy slopes 

 and ledges, the stony margins of lakes and by rocky burns, at 600- 

 1000 m., and appears to grow equally well on either granite, mica- 

 schist or hornblende. Dubh Loch, Loch-na-gar, 915-1070 m. (E. G. 

 Baker, in Herb. Brit. 1893), and also on Cairn Gorm, at the same 

 height (E. S. Marshall, 1898, in Herb. Brit.) 



Var. microcephalum, Backh. On the precipitous ledges and in 

 the high gullies of the great chasm on the north face of Loch-na-gar, 

 and also above the Dubh Loch, up to 1070 m. (F. J. Hanbury, 

 herb, propr. ; E. G. Baker, 1893, in Herb. Brit.; Backhouse, 

 1855, herb, propr., and in Herb. Brit.). 



9. Hieradum flocculosum, var. Bakeri, Williams, " Prodr. Fl. Brit." 

 TI g. On the cliffs of Ben Ein, up to 1000 m. (E. S. Marshall, 

 1889, in Herb. Brit.). 



Var. insulare Williams, " Prodr. Fl. Brit." 119. On the cliffs of 

 Ben Ein, up to 1000 m., where the plant was found by Messrs. 

 Hanbury and Marshall in July 1889, "and is doubtless to be found 

 in other high mountain glens of that neighbourhood " (F. J. Hanbury 

 in "Journ. Bot." 1892, p. 368). 



10. Hieracium callistophylhim, var. cremnanthes, Hanbury. 

 Meall Ghaordie (E. S. Marshall, in " Fl. Perthsh." 197). 



11. Hieracium pictorum, var. breadalbanense, Williams, "Prodr. 

 Fl. Brit." 130. Rocks above Loch-na-Chait, Ben Lawers ("Fl. 

 Perthsh." 198). 



1 2. Lactuca alpina, Hook. f. Ascends to 1070 m. on Loch-na-gar 

 (F. B. White in "Scot. Nat." i. 121 [1871]). "Discovered on the 

 Aberdeenshire mountain of Lochnagore by Mr. G. Don, Sept. 1801," 

 and figured in the first edition of "English Botany," t. 2425 (1812), 

 under the name of Sonchus avruleiis, which is also the name under 

 which it was first described and figured in Camerarius' " Epitome " 

 (1586). 



13. Taraxacum officinale, Weber. Ascends to 1190 m. in the 

 Breadalbane district ("Fl. Perthsh." 192), as on Ben Lawers. The 

 dandelion descends to sea-level in Cork. 



