Wood and bark anatomy of Monttea aphylla (Miers) Benth et Hook, Scrophulariaceae

Gimenez, A.M.; Moglia de Lugones, G.; Femenia, J.H.

Quebracho 6: 44-52


Accession: 003337508

Download citation:  

Article/Abstract emailed within 1 workday
Payments are secure & encrypted
Powered by Stripe
Powered by PayPal

This paper is part of a general project, studying the plant communities of the Talampaya Park in La Rioja, Argentina which is where the samples of Monttea aphylla were collected from. The hard bast of the bark was found to be formed exclusively by fibres, arranged in rectangular, alternating plates. The secretory system was distinctive with axial secretory canals surrounded by a concentric sheath of parenchyma. Rhytidome was scaly with four or more layers of peridermic layers. Wood vessels were arranged in a diffuse porous pattern (not uniform), with a tendency to semi-ring porous. The small vessels were radial multiples and clusters. The vessel members were short, with helical thickenings in the secondary wall. Vascular tracheids with helical thickenings were present at the end of the ring. The main characteristics observed in Monttea aphylla were in accordance with the typical features of xerophytic regions.