. Geological magazine. .Subalpme Lower Freshwater III. Grey Molasse II. Lower Brown Coal-formation. Ijlquitanian Molasse.(^I. Tongrian Stage. Switzerland takes the lead of all countries in its abundantdeposits of Miocene plants. There are about eighty places inSwitzerland where Miocene plants have been collected. Of theseMonod has yielded 193 species ; Locle, 140 species; Hohe-Ehonen,142 species; and (Eningen, 465 species; 920 species of Mioceneplants are known to Heer from various Swiss localities. There can be little doubt
. Geological magazine. .Subalpme Lower Freshwater III. Grey Molasse II. Lower Brown Coal-formation. Ijlquitanian Molasse.(^I. Tongrian Stage. Switzerland takes the lead of all countries in its abundantdeposits of Miocene plants. There are about eighty places inSwitzerland where Miocene plants have been collected. Of theseMonod has yielded 193 species ; Locle, 140 species; Hohe-Ehonen,142 species; and (Eningen, 465 species; 920 species of Mioceneplants are known to Heer from various Swiss localities. There can be little doubt that forests covered Switzerland in theMiocene Period probably similar in character to those which clothethe valleys of the Orinoco and the Amazon in South America at thepresent day. Ctipressinea and Ahietinece are the two chief Coniferous familieswhich during this period composed so large a proportion of theforest flora all over Europe. 86 Renews—Seers Primceval World of Switzerland. / Fig. 6. » , Fig. 7. ^ Fig. -Fig. 6. Fig. 7. -Fig. FiG. 6. GhjptostroJms europaus^ Br. sp. ffiningen. a. Branch with a mature cone;b. Wig with male flowers; c, twig with divergent leaves; d. twig withadpressed leaves.—Fig. 7. Taxodium distiehum miocenum. a. From Hohe-Ehonen; b. male flowers from Bilin.—Fig. 8. Widdringtonia HelreticayHeer, from Hohe-Ehonen. a. Branch; b. closed cone; c. cone open; cone with seeds. (Heer, Figs. 155, 156, and 158, p. 324.) The genus Sequoia had a wide distribution in Tertiary times fromCentral Italy and Greece up to the Arctic zone. Sequoia Zangsdorfi isfound fossil on the Mac-kenzie Eiver, in Green-land, in Kamtschatka, inAlaska, and also in manyEuropean localities. Thisform is closely related tothe redwood (Sequoia sem-pervirens) which formsgreat forests at the presentday in the coast-range ofCalifornia, throwing upstems 250 feet high. TheMammoth-tree {Sequoiagi-gantea) is found only in thehigher Sierra, and is muchmore limited in its range
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Keywords: ., bookauthorwoodward, bookcentury1800, bookdecade1870, bookyear1877
