Aristolochia pallida Willd.

Aristolochiaceae


Morphology

H, 10 - 40cm

Ecology

hill zone, dry sites

Chorology

mediterranean

Xylem

Distinct and indistinct rings, ring porous and semi-ring porous, vessels solitary, vessel diameter 50-90mµ, with tylosis, vessels thick walled (3mµ), simple perforation, round intervessel pitting, fibers thin to thick-walled or thick-walled, fibers with round bordered pits, parenchyma apotracheal, paratracheal and pervasive, vascular bundle form remaining, rays very large, unlignified with square cells. Crystals absent.

Xylem-Code

See annex

Phloem

Phloem with small sieve cells and large parenchyma cells. Distinct ray dilations. Cortex with few fragments of an earlier sclerenchymatic belt. .

Explanations

For explanations please see the Feature Characteristics.

Cross section
     
Tangential section
 
Radial section
 
Bark
 

© 2005 WSL - F. Schweingruber, W. Landolt, last update 18.11.2010