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TRICHOME MORPHOLOGY IN HEDERA (ARALIACEAE)

Published online by Cambridge University Press:  23 October 2001

J. ACKERFIELD
J. ACKERFIELD
Affiliation:
Department of Biology, Colorado State University, Fort Collins, CO 80521, USA
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Extract

Trichomes of Hedera L. taxa have long been used as an important character in delimiting species. Hedera exhibits two distinct trichome types: scale-like and stellate. This study examined the trichome variation in sixteen currently recognized Hedera taxa using scanning electron microscopy. Measurements of trichome morphology were taken, and variation among taxa compared. Of the taxa with scale-like trichomes, H. maderensis Rutherford subsp. maderensis has the largest overall length, longest rays, and largest fusion of rays. Of the species with stellate trichomes, H. helix has the largest overall, and also has the longest rays and widest rays.

Keywords

AraliaceaeHederaivytrichomes
Type
Research Article
Information
Edinburgh Journal of Botany , Volume 58 , Issue 2 , June 2001 , pp. 259 - 267
Copyright
© 2001 Trustees of the Royal Botanic Garden, Edinburgh

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