ALTITUDES REACHED BY CERTAIN PLANTS IN MID-PERTH 165 



Epilobium alsinefolium l 



,, anagallidifolium . 

 Galium boreale 



Erigeron alpinus, from 2400 to 

 Menyanthes trifoliata . 

 Myosotis alpestris, 2 from 2600 to 

 Veronica saxatilis, from 1900 to 

 Salix spuria, Willd. (Lap- 



,, ponum x arbuscula) 



,, arbuscula . 



,, reticulata, from 2300 to 

 Orchis mascula 3 . 

 Tofieldia palustris 

 Juncus triglumis 4 from 900 to 

 Triglochin palustre 

 Carex dioica 



,, echinata 5 . 



,, Goodenowii 



,, glauca var. stictocarpa . 



,, flava .... 



pulla . 



Sesleria coerulea, from 2000 to 

 Briza media 7 

 Poa annua var. supina . 



,, pratensis var. subcoerulea 8 

 Festuca rubra, L. form . 

 Lomaria Spicant 9 . 

 Polystichum Lonchitis 



from 1650 to 

 Phegopteris Dryopteris . 

 Botrychium Lunaria 

 Equisetum arvense, var. 

 alpestre . 



,, pratense 



,, palustre var. alpinum . 

 Lycopodium Selago 



Feet. 

 3000 

 3900 

 3400 

 3400 

 1880 

 3700 

 3400 



2900 

 2600 



35 

 2600 



2800 

 3200 

 2800 



3200 



3 2 5 

 3 2 5 



2 IOO 

 3100 



355 

 2600 



1300 



35 

 2900 



35 

 3100 



3400 

 2800 

 2800 



3100 

 3100 

 2900 



395 



Feet. 

 2900 



E. alpinum to near 4000 

 2800 

 3000 



in the Lake District 1800 



nearly 4000 



. from 1600 to 3000 



2400 



from 2000 to 3200 

 in the Lake District 1500 



2400 

 3000 



200O 

 2900 

 300O 

 3OOO 



type, in Yorkshire 2000 

 2900 



33 

 2500 



in Yorkshire 2 100 



type, 3200 



type, in Yorkshire 2400 



2000 



3200 



2700 

 2700 



type, in N. England 2000 



type, in N. England 1200 



type, 2500 



3500 



The following species are found in this district down to 

 the elevations noted :- 



1 [Watson's actual height for this is 2880 feet.] 



2 [39 f eet ' Watson.] 3 [2900 feet in Caenlochan Glen, Marshall.] 



4 [33 f ee t on -Ben Lawers, Druce, "Journ. Bot.," 1890, p. 44.] 



5 [2970 feet actual, Watson.] 6 [2800 feet on Ben Lawers, Druce.] 

 7 [1890 feet in Highlands, Watson.] 8 [2250 feet in Highlands, Watson.] 



fl [39 feet, Watson, in Comp. " C. Brit."] 



