a whorl subtending an inflorescence are collectively called an involucre. An involucre is a common feature beneath the inflorescences of many Apiaceae...

diameter, surrounded by an involucre (husk) which partly to fully encloses the nut. The shape and structure of the involucre, and also the growth habit...

gynoecium. Nuts may be contained in an involucre, a cup-shaped structure formed from the flower bracts. The involucre may be scaly, spiny, leafy or tubular...

(1⁄2–1 in) long, fully enclosed in a 3–5 cm (1+1⁄4–2 in) long, tubular involucre (husk). The filbert is similar to the related common hazel, C. avellana...

edges, and close at night. The involucre is subcupuliform or obtusely bell-shaped (campanulate) in shape. Both the involucre and scape can be glabrous or...

involucre, a cup-like part below and supporting the cyathium head. The "involucre" in the genus Euphorbia is not to be confused with the "involucre"...

sometimes ciliate. The involucre is smooth (glabrous) and campanulate, with an obtuse base (sometimes subintruse). The outer involucre bracts have ciliate...

filbert (Corylus maxima) by the short involucre; in the filbert the nut is fully enclosed by a beak-like involucre longer than the nut. Male catkins Female...

accessory fruit because the outer covering of the fruit is technically an involucre and thus not morphologically part of the carpel; this means it cannot...

Accessory Fruit Organs Organ Fruit Hypanthium apple, pear, rose hip Involucre pineapple Peduncle cashew apple Perianth anthocarps of the Nyctaginaceae...