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Castaneoidea
Genus Castaneoidea Crepet, Daghlian Amer. J. Bot., 67(5): 753. 24 Jun 1980
- Name
- Castaneoidea
- Rank
- Genus
- Authors (Pub.)
- Crepet W. L.
Daghlian C. P.
- Publication
- Castaneoid inflorescences from the Middle Eocene of Tennessee
and the diagnostic value of pollen (at the subfamily level) in the Fagaceae [1980/6]
- Journal
- American Journal of Botany
- Volume
- 67
- Issue
- 5
- Page number
- 753
- Year
- 1980
- Parent Taxon
- [Family] Fagaceae
- Fossil Status
- inflorescences (male)
- Type
- Castaneoidea puryearensis
- Diagnosis
- Staminate catkins up to at least 90 mm in length having helically arranged, bract subtended, dichasia of three florets each. Florets have minute floral envelopes (0.8 mm x 1.0 mm) terminating in at least five ovate lobes. Floral envelope cuticle with rectangular epidermal cells, sometimes in rows, and with round trichome bases. Trichomes short hairs attached singly or in fascicles of at least two. Florets with up to ten stamens; anthers elliptical and small (length 0.24 mm). Pollen tricolporate; 15.6 um x 9 um; exine ornamentation striate.
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