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pollen
(redirected from Tricolpate)

    Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia 0.02 sec.
pollen /pol·len/ (pol´in) the male fertilizing element of flowering plants.
pol·len (pln)
n.
Microspores of seed plants carried by wind or insects prior to fertilization.
pollen [pol´en]
the male fertilizing element of flowering plants.
pollen (pol´n),
n a fertilizing element of plants that travels in the air and produces seasonal allergic responses (type I) such as hay fever or asthma in sensitive individuals. See hypersensitivity.
pollen
the male fertilizing element of flowering plants.
pollen allergy
see canine atopy.
pollen
The male gametophyte of flowering plants, a major cause of seasonal allergies; ragweed–and related henchmen–eg, feverfew, has garnered the greatest revulsion among the allergically challenged
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Timing in the evolution of derived floral characters: Upper Cretaceous (Turonian) taxa with tricolpate and tricolpate-derived pollen.
Fossil record and age of the Asteridae by Martinez-Millan, Marcela / The Botanical Review
6 - - Chenopodiaceae 91 22 17 Indeterminate tricolpate grains 2 - - Trilete spores 14 1 - Fungal spores 5 - - Gramineae - 8 1 Typha - 1 1 Tricolpate pollen - - - Ephedra 1 - - taxa core IV core V Compositae (Ambrosia sp.
Geophysical and palynological investigations of the Tell El Dabaa ... by El Beialy, Salah Y.; Edwards, Kevin J.; El-Mahmoudi, Ahmed S. / Antiquity
Besides the characteristic exine structure, additional pollen characters reinforce the distinction of the Nassauvieae from the Mutisieae and Stifftieae: (1) the pollen of Nassauvieae and Stifftieae is always tricolporate, whereas in Mutisieae it can be tricolporate (most genera) or tricolpate (Hecastocleis and some species of Ainsliaea); (2) polar caps are more frequent in pollen of Nassauvieae (e.
The subfamily Mutisioideae (Asteraceae) by Katinas, Liliana; Pruski, John; Sancho, Gisela; Telleria, Maria Cristina / The Botanical Review
 
 
 
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