Pinus sp.
160,00 €
System: Cretaceous.
Origin: Sardinia, Italy.
Measurements: 16.5 cm x 11 cm
1 in stock
Inflorescence or female pine cone.
A female cone is a structure formed by a central axis in which numerous scales are placed in a spiral with a generally helical arrangement, called tectric bracts, on each of which are one or several seminiferous bracts and on them appear the seminal primordia, which after pollination and subsequent fertilization, must be transformed into seeds. In pines and nearby genera, the seminiferous scale can detach along with the seed, acting as a wing that favors anemochorous dispersion (wind as the main transport agent).
Female cones are called cones in pines and other pinaceae (family Pinaceae), but they may have other names and appearances in different conifers; This is what they call galbules in junipers and junipers, and arcestids in cypresses, all members of the cupressaceae family (Cupressaceae)..
In short, conifers are gymnospermous (fruitless) plants that produce seeds in cone-shaped structures. As the ovules are not enclosed in an ovary, the seeds of the cones are not housed in a fruit, nor do they have a fleshy covering (aril) as is the case with conifers of the Taxaceae and Cephalotaxaceae families.







