Expeditions organized or participated in by the Smithsonian . Fic. 74.—The silver sword ( satidt<.iccnse), growing on cinderslopes in the crater of Haleakala, East Mani. at an altitude of about 9, Fig. 75.—A tree fern {Cihotium nioizicsii) near Puu Waawaa, Hawaii. Theundergrowth is a common fern (Dryoptcris fuscoatra) found in much of thewet forest at an altitude of feet. NO. 17 SMITHSONIAN EXPLORATIONS, I916 71 square miles. These bogs are found near the summits of ridgesin the regions of heavy rainfall, are devoid of trees and shrubs,and harbor


Expeditions organized or participated in by the Smithsonian . Fic. 74.—The silver sword ( satidt<.iccnse), growing on cinderslopes in the crater of Haleakala, East Mani. at an altitude of about 9, Fig. 75.—A tree fern {Cihotium nioizicsii) near Puu Waawaa, Hawaii. Theundergrowth is a common fern (Dryoptcris fuscoatra) found in much of thewet forest at an altitude of feet. NO. 17 SMITHSONIAN EXPLORATIONS, I916 71 square miles. These bogs are found near the summits of ridgesin the regions of heavy rainfall, are devoid of trees and shrubs,and harbor a peculiar vegetation. Many species form more orless globose tussocks which rise above the general level of thebog. The most interesting of these tussock plants are a sedge


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Keywords: ., bookcentury1900, bookdecade1910, booksubjectscienti, bookyear1912