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Glyptostrobus chulymensis
Glyptostrobus chulymensis Golovn. in Golovn., Nosova Al'b-Senom. Fl. Zap. Sibiri 107. 2012
- Name
- Glyptostrobus chulymensis
- Rank
- Species
- Generic Name
- [Genus] Glyptostrobus
- Authors (Name)
- Golovneva L. B.
- Authors (Pub.)
- Golovneva L. B.
Nosova N. V.
- Publication
- Al'b-senomanskaya flora Zapadnoj Sibiri [2012]
- Authors (Book)
- Golovneva L. B.
Nosova N. V.
- Book
- Al'b-senomanskaya flora Zapadnoj Sibiri
- Page number
- 107
- Year
- 2012
- Fossil Status
- leafy twigs (with cones)
- Stratigraphy
- Cenomanian
- Strat. comment
- Simonovian suite
- Location
- Simonovo village, Tchulym River basin, Krasnojarsk Territory, Russian Federation
- Paleoregion
- Eurasia (W Siberia)
Data for Holotypus
- Repository
- Komarov Botanical Institute, Russian Academy of Sciences, St.-Petersburg, Russian Federation
- Repository Number
- № 1194/7
- Diagnosis
- Branchlets perennial and annual, pinnately branched. Long perennial shoots
3—5 mm in diamentre, with spirally arranged, imbricate, falcate, fl eshy, sessile, decurrent
leaves, 4—5 mm long, 1,5 mm wide, with triangular incurved acute apex. Free upper parts of
leaves 2—3 mm long, triangular or quadrangular in cross section, more or less keeled, diverging
from the shoot at angle about 40°. Short perennial shoots 1—1,5 cm long and 2—2,5 mm
in diameter, have similar leaves, but smaller (2—3 мм long and 1,5 wide) and more closely
disposed.
Ultimate annual shoots 5—12 cm long and 0,6—1 cm wide, sometimes branched, with
helical or distichous subulate or falcate leaves with acute incurved apex and decurrent base,
more or less keeled, quadrangular in cross section, 5—10 mm long, 0,7—1 mm wide, diverging
from the shoot at angle 30—50°.
Seed cones terminal, subglobular, 14 mm long, 10 mm in diameter, on erect peduncle
covered with scale-like acute leaves, consisting of 24—28 spirally arranged, imbricate, woody
scales. They rhomboid, 6 mm long, 4 mm wide, with cuneate narrowed base and triangularrounded
apex with crenate margin. In central part of external surface of scale there is free
triangular, acute recurved apex, 1,5 mm long and 2,5 mm wide.
