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Stewartia okutsui
Stewartia okutsui Tanai J. Fac. Sci. Hokkaido Univ., Ser. 4, Geol., 11(2): 374. 20 Mar 1961
- Name
- Stewartia okutsui
- Rank
- Species
- Generic Name
- [Genus] Stewartia
- Authors (Pub.)
- Tanai T.
- Publication
- Neogene floral change in Japan [1961/3]
- Journal
- Journal of the Faculty of Science of the Hokkaido University
- Volume
- 11
- Issue
- 2
- Page number
- 374
- Year
- 1961
- Parent Taxon
- [Genus] Stewartia
- Fossil Status
- leaves
- Stratigraphy
- Miocene
- Location
- Chausu-yama, Shinonoi City, Nagano Prefecture, Japan
- Paleoregion
- Eurasia (Japanese Archipelago)
Data for Holotypus
- Repository
- National Museum of Nature and Science, Palaeobotany Collection, Tokyo, Japan
- Repository Number
- UHR-15255
- Diagnosis
- Leaves medium in size, elliptieal in general outline, 6.5 to 8.0 cm and 3.8 to 5 cm wide; apex missing, but probably acute at apex; base gradually narrowed, broadly cuneate; midrib stout, nearly straight, prominent on under site of blade; secondaries thin but distinct, about 6 alternate to subopposite pairs, diverging from the midrib at angles of 40 to 50 degrees, nearly straight, curving upwards near the margin, then conneeting of festoon within the margin; sometimes short and slender secondaries diverging from the midrib among intersecondary spaees ; tertiaries indistinct, forming large polygonal network; margin slightly crenate or coarsely serrate with small and blunt teeth ; texture subcoriaceous ; petiole missing.
