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And there are several fine orchids, habenaria, and cypripedium, the latter very rare, once common in the Valley near the foot of Glacier Point, and in a bog on the rim of the Valley near a place called Gentry's Station, now abandoned.
Darwin thus foretold the precise manner of the cross-fertilization of Habenaria mascula, and also the insect agent, simply by the structural prophecy of the flower itself. Suppose, for example, an unknown orchid blossom to be placed in our hands. Its nectary tube is five inches in length, and as slender as a knitting-needle. The nectar is secreted far within its lip.
Along the slopes of the Cascades, where the woods are less dense, especially about the headwaters of the Willamette, there are miles of rhododendron, making glorious outbursts of purple bloom, and down on the prairies in rich, damp hollows the blue-flowered camassia grows in such profusion that at a little distance its dense masses appear as beautiful blue lakes imbedded in the green, flowery plains; while all about the streams and the lakes and the beaver meadows and the margins of the deep woods there is a magnificent tangle of gaultheria and huckleberry bushes with their myriads of pink bells, reinforced with hazel, cornel, rubus of many species, wild plum, cherry, and crab apple; besides thousands of charming bloomers to be found in all sorts of places throughout the wilderness whose mere names are refreshing, such as linnaea, menziesia, pyrola, chimaphila, brodiaea, smilacina, fritillaria, calochortus, trillium, clintonia, veratrum, cypripedium, goodyera, spiranthes, habenaria, and the rare and lovely "Hider of the North," Calypso borealis, to find which is alone a sufficient object for a journey into the wilderness.
Many of the group Habenaria or Platanthera, to which this flower belongs, are similarly planned. But mark the peculiarly logical association of the parts here exhibited. The nectary implies a welcome to a tongue two inches long, and will reward none other. This clearly shuts out the bees, butterflies, and smaller moths. What insect, then, is here implied?
In our own native orchids we have a remarkable example of the latter form in the Habenaria orbiculata, whose structure and mechanism have also been admirably described by Asa Gray.
Lutkea, hedysarum, parnassia, epilobium, bluebell, solidago, habenaria, strawberry with fruit half grown, arctostaphylos, mertensia, erigeron, willows, tall grasses and alder are the principal species. There are many butterflies in this garden. Gulls are breeding near here. I saw young in the water to-day.
To know anything at all of the spruces, pines and hemlocks is to love them for the refreshment there is in their living presence, rather than to consider them merely for the timber value. But the point of view differs immensely with one's occupation. I remember finding in the depths of an Alleghany forest a comparatively rare native orchid, then new to me the round-leaved or orbicular habenaria.
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