rhytidome


Also found in: Dictionary, Wikipedia.

rhytidome

bark consisting of alternating layers of cork and dead CORTEX or PHLOEM.
References in periodicals archive ?
Yet, this species only maintains a thin outer bark as it matures, even though thick, multi-layered rhytidomes generally provide the best thermal and structural protection.
The chemical composition of cork and phloem in the rhytidome of Quercus cerris bark.
Gross features of bark: The bark is wrinkled with thick large plates; non collapsed secundary phloem of 1.56 mm, collapsed secundary phloem of 0.15 mm and rhytidome up to 3 mm.
Rhytidome is formed by four layers of suberized secondary phloem and its periderm.
The inner bark (phloem), as the conductive tissue necessary for transporting the products of photosynthesis, is protected by the outer bark (rhytidome) which includes the mostly nonliving tissues outside the innermost periderm.
Additional samples of bark were carefully peeled by hand to separate the inner bark (phloem) from the outer bark (rhytidome) prior to grinding and drying.
In this manner, a great number of vicariant species originated from wetter forest formations, could have developed in savanna areas and become a peculiar floristic element, evolving in loco toward a constant morphological pattern, i.e., small size, thick and pileous leaves, thicker rhytidomes. However, these characteristics as well as others do not always occur together, but rather in a combined manner (Rizzini, 1971).