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Platydebeya
Genus Platydebeya Krassilov in Krassilov, Lewy, Nevo, Silant. Late Cret. (Turon.) Fl. S. Negev, Israel 128. Apr 2005
- Name
- Platydebeya
- Rank
- Genus
- Authors (Name)
- Krassilov V. A.
- Authors (Pub.)
- Krassilov V. A.
Lewy Z.
Nevo E.
Silantieva N.
- Publication
- Late Cretaceous (Turonian) Flora of Southern Negev, Israel [2005/4]
- Authors (Book)
- Krassilov V. A.
Lewy Z.
Nevo E.
Silantieva N.
- Book
- Late Cretaceous (Turonian) Flora of Southern Negev, Israel
- Page number
- 128
- Year
- 2005
- Parent Taxon
- [Order] Platanales
- Fossil Status
- leaves
- Type
- Platydebeya papilionacea
- Diagnosis
- Leaf trifoliate grading to trilobate by a continuous
webbing of petiole and the midribs. Median leaflet elongate-elliptical,
nearly equilateral. Lateral leaflets inaequilateral, acroscopically laminaless
at base, decurrent. Margin distally serrate, conspicuously glandulate.
Midribs thick, appearing as arms of petiole. Secondary veins much
weaker than midrib, steeply ascending, looping along the margin. Stomata
scattered, with narrow ring of feebly cutinized subsidiary cells and with
irregular encircling cells. Trichomes peltate.
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