Post 00866
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These radiant sheets and belts and dome-encircling rings of crystals are the most beautiful of all the Sierra soil-beds, while the huge taluses ranged along the walls of the great cañons are the deepest and roughest. Instead of being slowly weathered and accumulated from the cliffs overhead like common taluses, they were all formed suddenly and simultaneously by an earthquake that occurred at least three centuries ago. Though thus hurled into existence at a single effort, they are the least changeable and destructible of all the soil formations in the range. Excepting those which were launched directly into the channels of rivers, scarcely one of their wedged and interlocked boulders has been moved since the day of their creation, and though mostly made up of huge angular blocks of granite, many of them from ten to fifty feet cube, trees and shrubs make out to live and thrive on them, and even delicate herbaceous plants,—draperia, collomia, zauschneria, etc.,—soothing their rugged features with gardens and groves. In general views of the Park scarce a hint is given of its floral wealth. Only by patiently, lovingly sauntering about in it will you discover that it is all more or less flowery, the forests as well as the open spaces, and the mountain tops and rugged slopes around the glaciers as well as the sunny meadows.
Even the majestic cañon cliffs, seemingly absolutely flawless for thousands of feet and necessarily doomed to eternal sterility, are cheered with happy flowers on invisible niches and ledges wherever the slightest grip for a root can be found; as if Nature, like an enthusiastic gardener, could not resist the temptation to plant flowers everywhere. On high, dry rocky summits and plateaus, most of the plants are so small they make but little show even when in bloom. But in the opener parts of the main forests, the meadows, stream banks, and the level floors of Yosemite valleys the vegetation is exceedingly rich in flowers, some of the lilies and larkspurs being from eight to ten feet high. And on the upper meadows there are miles of blue gentians and daisies, white and blue violets; and great breadths of rosy purple heathworts covering rocky moraines with a marvelous abundance of bloom, enlivened by humming-birds, butterflies and a host of other insects as beautiful as flowers. In the lower and middle regions, also, many of the most extensive beds of bloom are in great part made by shrubs,—adenostoma, manzanita, ceanothus, chamæbatia, cherry, rose, rubus, spiræa, shad, laurel, azalea, honeysuckle, calycanthus, ribes, philadelphus, and many others, the sunny spaces about them bright and fragrant with mints, lupines, geraniums, lilies, daisies, goldenrods, castilleias, gilias, pentstemons, etc.
Adenostoma fasciculatum is a handsome, hardy, heathlike shrub belonging to the rose family, flourishing on dry ground below the pine belt, and often covering areas of twenty or thirty square miles of rolling sun-beaten hills and dales with a dense, dark green, almost impenetrable chaparral, which in the distance looks like Scotch heather. It is about six to eight feet high, has slender elastic branches, red shreddy bark, needle-shaped leaves, and small white flowers in panicles about a foot long, making glorious sheets of fragrant bloom in the spring. To running fires it offers no resistance, vanishing with the few other flowery shrubs and vines and liliaceous plants that grow with it about as fast as dry grass, leaving nothing but ashes. But with wonderful vigor it rises again and again in fresh beauty from the root, and calls back to its hospitable mansions the multitude of wild animals that had to flee for their lives.