CORYLACEAE
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publication ID |
https://doi.org/10.5281/zenodo.302862 |
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persistent identifier |
https://treatment.plazi.org/id/1213417E-FFBA-FFB8-CA2F-FE6A4D7ECD90 |
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treatment provided by |
Plazi |
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scientific name |
CORYLACEAE |
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XXXV. CORYLACEAE 1
Deciduous trees or shrubs. Leaves alternate, simple; stipules caducous. Flowers monoecious, inconspicuous, anemophilous. Male flowers 1 in the axil of each bract in pendent catkins; bracteoles 2, united with the bract, or 0; perianth absent. Female flowers 2 in the axil of each bract; bracteoles present; perianth small, irregularly lobed; ovary 2-locular, inferior; styles 2. Fruit a nut, subtended or surrounded by an involucre formed from the accrescent bract and bracteoles. 1 Buds ovoid, obtuse; leaves usually with fewer than 8 pairs of veins; fruits in clusters of 1 -4 3. Corylus 1 Buds fusiform, acute; leaves with 9 or more pairs of veins;
fruits numerous, in pendent spikes 2 Bark grey, smooth; male catkins appearing in spring; nut subtended by a 3-lobed or serrate involucre 1. Carpinus 2 Bark brown, scaly, rough; male catkins visible throughout the winter; nut enclosed in an entire, apiculate involucre
2. Ostrya
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