. Cryptogamic plants of the USSR. (Flora sporovykh rastenii SSSR). Plants. FIGURE 15. Silicoflagellate complex of the Neogene of northern Sakhalin (younger complex): 1—Dictyocha fibula Ehr. var. fibula f. fibula; D. f. var. pent agon a Schulz; 3 —Paradict yocha polyactis f. completa Freng.; 4—Distepha- nus speculum var. pe nt a gonu s Lemm.; 5—7—D. s. (Ehr,) Hack. var. specu lum; 8—Paradictyocha polyactis f. mesocenoidea Freng.; 9 — Distephanus speculum var. c annopi loide s () Gleser. 198 The flora of the Hokuriku area of Japan (Tsukada horizon) resembles the complexof the Napana Riv
. Cryptogamic plants of the USSR. (Flora sporovykh rastenii SSSR). Plants. FIGURE 15. Silicoflagellate complex of the Neogene of northern Sakhalin (younger complex): 1—Dictyocha fibula Ehr. var. fibula f. fibula; D. f. var. pent agon a Schulz; 3 —Paradict yocha polyactis f. completa Freng.; 4—Distepha- nus speculum var. pe nt a gonu s Lemm.; 5—7—D. s. (Ehr,) Hack. var. specu lum; 8—Paradictyocha polyactis f. mesocenoidea Freng.; 9 — Distephanus speculum var. c annopi loide s () Gleser. 198 The flora of the Hokuriku area of Japan (Tsukada horizon) resembles the complexof the Napana River, Kamchatka. D. crux (Ehr.) Hack. var. crux is the only abundant silicoflagellate in both localities; in addition to this form, the Napana flora consists of isolated specimens of D. speculum var. pentagonus Lemm. and var. c a nno p i 1 o i d e s () Gleser. On the northern coast of the Shinidt peninsula (Machigar section), a different flora replaces the one outlined above. This other, younger complex of Neogene silicoflagellates consists of varieties and forms of Dictyocha fibula Ehr., Distephanus speculum (Ehr.) Hack, and Paradictyocha polyactis (Ehr.) Freng. (Figure 15). Usually either Dictyocha fibula Ehr. var. fibula f. fibula or Distephanus speculum (Ehr.) Hack. var. speculum (sometimes var. pentagonus Lemm.) predominate in the flora. Sometimes these two species appear in equal amounts. As a rule, the other forms are less abundant. The predominance of the warmwater 212. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Botanicheskii institut im. V. L. Komarova. Jerusalem [Published for the National Science Foundation, Washington, D. C. by the Israel Program for Scientific Translations
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Keywords: ., bookcentury1900, bookcollectionbiodiversity, booksubjectplants
