Tracy: RovuGHING IT To THE YOSEMITE’ 109 
Grange Dam, which is the beginning of the Turlock and 
the Modest Irrigation districts, together making one of the 
largest tracts of irrigated land to be found in the United 
States. On the way there, I was to see my first ferns. 
The very common gold-back, Gymnogramma eon 
laris, was at this altitude (600 ft.) and season dry and — 
curled up. Passing along the banks of the Tuolumne 
River up towards the dam, I came across A zolla filiculordes 
growing abundantly at the base of a spring. 
literally covered the pool of water, and that seeming not — 
to be enough they encroached on the ground, growing 
in the damp soil around the spring for a distance of 
many feet. The plants were in excellent condition both — 
as to abundant fruiting stages and luxuriance of growth. 
_ Under the protection of a large rock near the dam, — 
where the wind carried the spray, I found several plants 
of Gymnogramma. triangularis viscosa. I have seen this 
plant growing near San Diego, Calif., but I was sur-— 
prised to find it here and later in the Yosemite Valley. 
Pellaea ornithopus and Woodwardia radicans were also — 
seen growing near the falls. One other little fern was 
also found here, Pellaea densa. This fern I had expected = 
ie find up in the mountains, but I had hardly a a 
Ce wing at this low altitude. — 
rvey of the irrigation flumes a 
: a clvetn, ths Sad pe aa enced in f 
a for the. greener ountry 
