. Cryptogamic plants of the USSR. (Flora sporovykh rastenii SSSR). Plants. Proshkina-Lavrenko (19 59), Tr. BIN AN SSSR, ser. 2, Spor. rast., 12, Table 1, Figures 19 — 21; Deflandre (1950), Microscopie, 2, p. 6. — Octactis pulchra Schiller (1925), Arch. Protistenk. 53, p. 67, Text-figure C; Hovasse (1932), Bull. Biol. France, 66, 4, p. 458. 20° 40° 60° 80° 100° 120° K0° le. FIGURE 28. Distribution of varieties of Di stephan us octonarius (Ehr.) Defl., var. octonarius (1), var. polyactis (Jorg.) Gleser (2) and var. cyrtoides (Hack.) Gleser (3) in seas of the USSR 273 Basal ring is octagonal, 27
. Cryptogamic plants of the USSR. (Flora sporovykh rastenii SSSR). Plants. Proshkina-Lavrenko (19 59), Tr. BIN AN SSSR, ser. 2, Spor. rast., 12, Table 1, Figures 19 — 21; Deflandre (1950), Microscopie, 2, p. 6. — Octactis pulchra Schiller (1925), Arch. Protistenk. 53, p. 67, Text-figure C; Hovasse (1932), Bull. Biol. France, 66, 4, p. 458. 20° 40° 60° 80° 100° 120° K0° le. FIGURE 28. Distribution of varieties of Di stephan us octonarius (Ehr.) Defl., var. octonarius (1), var. polyactis (Jorg.) Gleser (2) and var. cyrtoides (Hack.) Gleser (3) in seas of the USSR 273 Basal ring is octagonal, 27 /lz in diameter. Radial horns are almost equal, 4 — 5 pi long, or two opposite horns longer than the other 6. Apical ring is 21 )U in diameter. Supporting spines are present. Distribution in the USSR: Black Sea; Caspian Sea; Sea of Japan (Peter the Great Bay). FOSSILS. Neogene. Far East: Sakhalin (Shmidt peninsula, basin of Kongi River and Lake Machigar, Diatom suite, very rare). Quaternary deposits. European part: Ladoga area (Raukhiala, very rare); Pacific Ocean (northwestern part, bottom deposits, third horizon). General distribution: Norwegian, North, Adriatic, Mediteranean seas. Sea of Marmara; Indian Ocean; equatorial zone of the Atlantic Ocean; Pacific Ocean; South Polar basin. FOSSILS. Aqu i t an ian - Bu r d iga- lian stage. Southern Europe (Moron, Spain). Miocene. Southern Europe (Sicily, Italy); Africa (Oran, Algeria); Asia (Sendai and Kittanai, Honshu Island, Japan); North America (Monterey, California). Middle — Late Miocene. North America (Santa Monica, California). Late Miocene. Asia (Hokuriku area, Honshu Island, Japan, rare). Neogene (?). North America (Redondo). Note: The specimen found in the Neogene of the Far East differs from the diagnosis by Gemeinhardt (1. c.) and drawings of Gemeinhardt (1. c.) and Deflandre (1. c.) in possessing radial horns of almost equal length. The independence of the species D ic tyo c ha octonaria Ehr. was restored
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Keywords: ., bookcentury1900, bookcollectionbiodiversity, booksubjectplants
