Palm Morphology and Anatomy

Arborescent palm seed morphology and seedling distribution.

This study examines how the seed morphology of two large arborescent palms, Attalea maripa (Aubl.) Mart. and Astrocaryum aculeatum G. Mey, may affect their seed shadow in a seasonally dry Amazonian forest. In addition to being smaller and produced in larger numbers than those of A. aculeatum, A. maripa seeds also presented a substantially lower amount of nutritional reserves available for the e...

The Anatomy and Morphology Cushion Species Tasmanian

A study of the anatomy and morphology of four Tasmanian cushion plant showed that anatomical convergence was not as well developed as the obviolls morphological convergence. The of well-developed xeromorphic features in the Tasmanian species is not consistent with the hypothesis previollsly suggesrcd that the cilshion fonn evolved plimarily as a strategy to maintain a positive water balance.

Morphology and Anatomy of Tropical Flowers

Morphology, Anatomy and Ultrastructure of Reaction Wood

Whatever the species considered, trees reorient their axis by a very active mechanical action driven by variations of cambial activity. These variations of cambial activity will lead to variations in anatomy and ultrastructure of the xylem to achieve this biomechanical function, forming a type of wood called reaction wood, i.e. tension wood in angiosperms and compression wood in gymnosperms. Th...

Stem anatomy in the spiny american palm Bactris (Arecaceae-Bactridinae)

(Stem anatomy in the spiny american palm Bactris (Arecaceae-Bactridinae)). Bactris trunks are made entirely by long sustained primary growth so that mechanical properties develop progressively as the trunk matures. Anatomical features vary throughout the stem so that one small sample is a limited representation. This limits the use for stem histology with systematic purposes. We examined stem a...