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Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Collenchyma in Araceae: trends and relation to classification
Auteurs :	Richard C. Keating, Auteur
Type de document :	Article
Dans :	Botanical Journal of the Linnean Society (134(1-2) 2000-09-01)
Article en page(s) :	203-214
Résumé :	Collenchyma, a common mechanical tissue of Araceae, was surveyed in leaves and petioles of 108 of 109 genera. The tissue is either absent or present in several configurations including peripheral bands, interrupted bands and separate strands. ‘Banded’ collenchyma is present in the bisexual-flowered genera and throughout the Philodendroideac. ‘Stranded’ forms, where collenchyma strands are found on the same radii as vascular bundles, but not directly associated with them, are almost exclusive to the Aroideae. Two trends of specialization are postulated, one positionally related to vascular bundle fibre caps and one independent of lignified mechanical tissues. The results are compared with a classification that reflects the topology of a cpDNA.
En ligne :	https://doi.org/10.1111/j.1095-8339.2000.tb02351.x

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