THE HIGH ALPINE FLORA OF BRITAIN 229 



THE HIGH ALPINE FLORA OF BRITAIN. 



BEING A LIST OF THE FLOWERING PLANTS AND 

 FERNS FOUND AT A THOUSAND METRES AND 

 UPWARDS ON THE MOUNTAINS OF THE BRITISH 

 ISLES, WITH AUTHENTIC REFERENCES AND CRITI- 

 CAL NOTES. 



By FREDERIC N. WILLIAMS, F.L.S. 

 ( Continued from p. 1 6 8.) 



MONOCOTYLEDONS. 

 Fam. 28. JUNCACE^E. 



104. Juncus biglumis, L. In wet places and by the sides of rills 

 on micaceous rocks. Summit of Meall Ghaordie (John Stuart in 

 Lightfoot, "Fl. Scotica," 1 100), its earliest record as a British plant 

 ( J 777)' "By the side of rivulets near the summit of Ben Lawers " 

 (G. Don, Herb. Brit., fasc. i. n. 8, 1804). "Moist ground at very 

 considerable heights on all sides of Ben Lawers" (R. Brown, 1794, 

 in Herb. Brit.). In abundance on the north-east side of Beinn- 

 dubh-Chraige, near Tyndrum (E. S. Marshall, 1888, in " Journ. Bot." 

 1889, p. 235), at 1000 m. 



105. Juncus triglumis, L. Not uncommon in bare wet places 

 on the mountains of the Breadalbane district, up to 1005 m. ("Fl. 

 Perthsh." 298). It ascends to this level on Ben Lawers (G. C. Druce 

 in "Journ. Bot." 1890, 44). Ascends to 1067 m. on Snowdon, 

 in boggy alpine places (A. Bennett, ex "Ann. Scot. Nat. Hist." 1904, 

 196), thus to a higher level than on the Scottish mountains. 



1 06. Juncus castamus, L. On alpine bogs, very rare, on 

 micaceous soil, near the summit of Ben Lawers (G. Don, 1794, 

 and in fasc. iv. [1805]). "I have gathered it to the south, east, 

 and west of the peak of Ben Lawers " (Syme, " Engl. Botany," x. 

 14 [1870]). 



107. Juncus trifidus, L. On alpine stony ridges and rock-ledges. 

 First recorded in Ross-shire in i 777. ''I found it upon the summits 

 of the Highland mountains to the south of Little-Loch-Broom in 

 Ross-shire" (Lightfoot, " Fl. Scotica," i. 184). This most probably 

 refers to An Teallach, which is the most noticeable mountain in the 

 locality indicated, and is considerably over 1000 m. It may also 

 include Ben Dearg, which is not far off. Summit of Ben-na-Bourd : 

 " on the sides and top of Ben Bourd, a high mountain about seven 

 miles from Invercauld " (R. Brown, 1794, in Herb. Brit.). Summit 



