44 
the delicate outline of the white birch, clothed in golden-yellow 
foliage, stands out in pleasing contrast. Lakes and streams 
ound, bordered with thickets of alder and willow, and the 
narrow strips of meadow that separate them from the foothills 
constitute in many places the only arable land. e€ common 
heather, Calluna vulgaris, and the orange hawkweed, Hieracium 
aurantiacum, were in flower; the second crop of hay was just 
being harvested; the nights were frosty, and many of the trees 
had shed their leaves. 
Fic. 7. A smail lake near Upsala, Sweden. 
o days were spent at Upsala, during which time, through 
the kindness of Dr. O. Juel, all of the specimens in the Friés 
Herbarium which could have any bearing on my study of tropical 
gill-fungi were examined. Unfortunately, many original speci- 
mens in this collection were lost or destroyed by insects thirty 
more years ago, before the herbarium was arranged in its 
oe shape. It must be remembered, also, that Fries was in 
no sense a collector or herbarium maker, and there are several 
places in Europe where his species are better represented than 
at Upsala. Most of his original descriptions were drawn from 
