Corylus


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Related to Corylus: Corylus americana, Corylus cornuta

Corylus

 

a genus of deciduous shrubs and, less frequently, trees of the family Corylaceae (or Betulaceae, in a broad sense). The flowers are diclinous and open earlier than the leaves. The staminate flowers are pendulous in catkins, and the pistillate flowers, in biflorate inflorescences. The fruit is a unilocular, monospermous, ligneous nut with a leafy involucre. There are approximately 20 species, distributed in the forest zones of Europe, Asia, and North America. Seven species are found in the USSR. Many species are valuable for their nuts.

The European hazel (Corylus avellana), a shrub or arbuscle measuring up to 8 m in height, has the most economic significance in the European USSR. One shrub yields at least 3 kg of nuts. The European hazel is propagated by seeds, shoots from the stump, root suckers, and cuttings. It lives as long as 80 years. It is the principal type of brush in deciduous forests and in broad-leaved coniferous and high-mountain coniferous forests. C. mandshurica, C. brevituba, and the Siberian filbert (C. heterophylla) are found in the Far East. Several species, including the European hazel, the Turkish hazelnut (C. colurna), C. colchica, and C. pontica are found in the Caucasus. The filbert (C. maxima) is cultivated in the Caucasus and the Crimea.

S. K. CHEREPANOV

References in periodicals archive ?
are shown (n = 100) H dbh m cm Acer campestre 10 [+ or -] 5 14 [+ or -] 5 Corylus avellana 5 [+ or -] 2 10 [+ or -] 4 Crataegus monogyna 6 [+ or -] 2 11 [+ or -] 4 Popolus alba 32 [+ or -] 4 67 [+ or -] 19 Popolus nigra 38 [+ or -] 8 106 [+ or -] 24 Prunus padus 11 [+ or -] 8 16 [+ or -] 7 Quercus robur 31 [+ or -] 8 73 [+ or -] 22 Robinia pseudoacacia 18 [+ or -] 6 25 [+ or -] 8 Ulmus minor 12 [+ or -] 4 17 [+ or -] 7 TABLE 2 Plant regeneration (saplings [ha.
These primers have been reported polymorphic in a wider sample of Corylus species in previous studies (Demir 2004; Galderisi et al.
Stuchlik (1964) as Corylus americana after figure of Iteapollis labeled Corylus?
6, Pr1, Pr2) contained abundantly pollen redeposited from the Eemian strata, first of all Alnus, Corylus, Ulmus, Quercus and Carpinus, which increased the arboreal pollen (AP) frequency.
degrees]) (6) Plum tree Prunus domestica+ (5) Apple tree Malus pumila+ (4) Poplar Populus alba ([degrees]) (4) Ash Fraxinus excelsior * (3) Hazel Corylus sp * (3) Walnut Juglans regia+ (2) Maple Acer campestre * (2) Maple A.
Tra gli arbusti risultano dominanti Cornus sanguinea, Rubus caesius, Corylus avellana; lo strato erbaceo invece e costituito prevalentemente da Aegopodium podagraria, Hedera helix, Carex pendula, Brachypodium sylvaticum, Ranunculus lanuginosus.
Meteorologiniu salygu itaka alnus, betula ir corylus ziedadulkiu sklaidai, is Konferencijos "Aplinka ir pasaulis" pranesimu santrauku rinkinys.
Caricaceae Papaya Carica papaya Anacardiaceae Mango Mangifera indica Table 18-4 Nut Trees Family Common name Scientific name Rosaceae Almond Prunus amygdalus Juglandaceae English Walnut Juglans regia Pecan Carya illinoensis Betulaceae Filbert Corylus avellana Proteaceae Macadamia Macadamia ternifolia Table 18-5 Fruit and Nut Tree Production Guidelines Space per trees Pollinizer Approx.
The cultivated hazelnut (filbert) has been classified as Corylus maxima Mill and Corylus avellana L.