Pollen Triporate

Equator (amb) Proximal pole

Equator (amb) Proximal pole

Lateral view

I x Saccus

Monosulcate

Monoporate Zonosulcate Monosulcate-bisaccate

Equatorial view

Polar view

Fig. 13.10 Morphology and terminology of tricolpate and related pollen grains.

Triporate

Equatorial view

Equator Polar axis' _

Colpus -

Tetrad Tricolpate Tricolporate

Fig. 13.10 Morphology and terminology of tricolpate and related pollen grains.

Polar view

Triporate

Line Pollen

Fig. 13.11 Diagrammatic representation of pollen grains mentioned in the text. (a) Abies (Pleistocene), x250. (b) Pinus (Recent), x350. (c) Tsuga (Recent), x1200. (d) Podocarpus (Cretaceous), x500. (e) Aquilapollenites (Cretaceous), x1400. (f) Woodhousia (Cretaceous), x1140. (g) Picea, x325. (h) Alnus, x1400. (i) Betula, x1600. (j) Carpinus, x2000. (k) Acer, x880. (l) Quercus, x1000. (m) Corylus, x1800. ((a), (d) After Tschundy & Scott 1969; (b), (c), (e), (f) after Traverse 1988; (g)-(m) after Moore et al. 1991.)

Fig. 13.11 Diagrammatic representation of pollen grains mentioned in the text. (a) Abies (Pleistocene), x250. (b) Pinus (Recent), x350. (c) Tsuga (Recent), x1200. (d) Podocarpus (Cretaceous), x500. (e) Aquilapollenites (Cretaceous), x1400. (f) Woodhousia (Cretaceous), x1140. (g) Picea, x325. (h) Alnus, x1400. (i) Betula, x1600. (j) Carpinus, x2000. (k) Acer, x880. (l) Quercus, x1000. (m) Corylus, x1800. ((a), (d) After Tschundy & Scott 1969; (b), (c), (e), (f) after Traverse 1988; (g)-(m) after Moore et al. 1991.)

give rise to a perforate tectum supported by columellae (i.e. tectate). The tectum surface may be smooth or sculptured in much the same way as outlined above.

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  • CHLOE
    What is triporate pollen?
    2 years ago

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