The catkin falls off in a mass, separating from the branch by an articulation.
The male flowers are in small clusters on the usually slender and pendent stalk, forming an interrupted catkin; the stamens vary in number, usually six to twelve.
4, Female catkin.
- Catkin of Male ing pendulous anthers and pro Flowers of Hazel.
- 1, Female catkin (enlarged); 2, Pair of fruits (nuts) each enclosed in its involucre (reduced).
- Catkin of Hazel (Corylus Avellana), consisting of an axis covered with bracts in the form of scales, each of which covers a male flower, the stamens of which are seen projecting beyond the scale.
a, Male flower and young cones; b, male catkin; c, d, outer and inner side of anther-scale.
a, Fertile flower of mature cone; b, winged seed; c, fertile catkin.
Female flowers arranged, two to three together on scale-like structures formed by the union of bracts, in catkins; ovary two-celled; fruit small, flattened, protected between the ripened scales of the catkin.
- Amentum or catkin of Hazel (CorylusAvellana), consisting of an axis or rachis covered with bracts in the form of scales, each of which covers a male flower, the stamens of which are seen projecting beyond the scale.
(Amentum, Catkin), Willow, Hazel.
- A, Male catkin in longitudinal section: a, axis; b, bracts; c, d, filaments of stamens, bearing the pollen-sacs (e and f) at the top; v, apex of axis.
catkin; a, (X about io.) B, C. Grand' Euryi.
In the catkin shown in longitudinal section in fig.
catkin s each scale of which held two dark brown seeds.
catkin s when they appear in July.
The male inflorescence is often a pendulous catkin, as in hazel and many native English trees (fig.
13), it is an amentum or catkin, hence such trees are called amentiferous; at other times it becomes succulent, bearing numerous flowers, surrounded by a sheathing bract or spathe, and then it constitutes a spadix, which may be simple, as in Arum maculatum (fig.
The catkin falls off entire, separating from the branch by an articulation.
The word usage examples above have been gathered from various sources to reflect current and historial usage. They do not represent the opinions of YourDictionary.com.