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A Pollen Key for Quaternary Paleontology

A Pollen Key for Quaternary Paleontology. Amaranthus - Spherical - Periporate - Exine: Scabrate to Psilate Favors warmer climates. Amaranthus, pigweed , is a genus of herbs. Ambrosia Spherical Exine: Echinate (short spines) - Favors warm, temperate climates.

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A Pollen Key for Quaternary Paleontology

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  1. A Pollen Key for Quaternary Paleontology

  2. Amaranthus • - Spherical • - Periporate • - Exine: Scabrate to Psilate • Favors warmer climates Amaranthus, pigweed, is a genus of herbs.

  3. Ambrosia • Spherical • Exine: Echinate (short spines) • - Favors warm, temperate climates Ragweeds (Ambrosia), also called bitterweeds and bloodweeds, are a genus of flowering plants from the sunflower family (Asteraceae)

  4. Eriogonum • Prolate • Colporate • Exine: Reticulate • Favors colder climates Eriogonum is the genus known as Wild Buckwheat.

  5. Sarcobatus • Spherical • Periporate (fewer porates than • amaranthus) • Exine: Psilate • Favors warmer and dryer • climates Greasewood (Sarcobatus) is a genus from desert areas of western North America

  6. Juniperus- Spherical to Elliptical- no obvious aperture (inaperatuate)- Exine: Gemmate- Typically looks like “Pac Man” in fossil form- Favors warmer climates Junipers are coniferous plants in the genus Juniperus of the cypress family.

  7. Quercus- Prolate- tricolpate- Exine: Verrucate- Favors warmer climates Quercus is the genus for oak trees

  8. Picea • Vesiculate • - Reticulum Bladders • The cap exine is a verrucate • texture • - Favors cold climates A spruce is a tree of the genus Picea, a genus of about 35 species of coniferous evergreen coniferous trees in the Family Pinaceae, found in the northern temperate or boreal regions.

  9. Pinus • Bisaccate • Sculptural Element? • Has a pronounced lateral • line giving the impression of • a cap sitting on top of the • body portion • Favors moderate climates • (transitional) Pines are coniferous trees in the genus Pinus, in the family Pinaceae

  10. Artemisia • Tricolporate • Broad-based, low pointed spines • Favors moderate climates • (transitional) Artemisia is a large, diverse genus of plants belonging to the daisy family Asteraceae. It consists of herbs and shrubs that grow in temperate climates, usually in dry or semi-dry habitats.

  11. Poaceae (Graminae) Poaceae (Graminae) Poaceae (Graminae) Poaceae (Graminae) This family includes food crops, turf • Poaceae • Spherical • Monoporate (looks like a • microscopic cantaloupe) • Exine: Scabrate to Psilate • A hardy family of plants that • favors moderate climates • (transitional) Poaceae or Gramineae is a family of flowering plants, usually called grasses. Grass species also occur in many other habitats, including wetlands, forests and tundra. They inculde wheat, corn, and rice.

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