A phytochemical and morphological study of the liverwort Plagiochila retrorsa Gottsche, new to Europe

Rycroft, D.S., Heinrichs, J., Cole, W.J. and Anton, H. (2001) A phytochemical and morphological study of the liverwort Plagiochila retrorsa Gottsche, new to Europe. Journal of Bryology, 23(1), pp. 23-34.

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Abstract

The Neotropical liverwort Plagiochila retrorsa Gottsche is conspecific with P. sharpii H.L.Blomq., known previously as a Southern Appalachian endemic, as well as P. tricarinata Carl and P. permista Spruce var, subintegerrima Herzog from Costa Rica. It has been discovered recently in the Azores and Madeira, new to Europe. Illustrations, SEM micrographs of spores and elaters, nuclear magnetic resonance (NMR) fingerprints and gas chromatography-mass spectrometry (GC-MS) data are presented, based on American and European material. Costa Rican material used for an earlier phytochemical study has now also been identified as P. retrorsa. Although NMR fingerprinting initiated the present discoveries, the NMR fingerprint of P. retrorsa is not unique and NMR fingerprinting alone is not sufficient to identify the species. P. retrorsa belongs to the 9,10-dihydrophenanthrene chemotype group and the two principal secondary metabolites are 3,5-dimethoxy-9,10- dihydrophenanthren-2-ol and methyl 4-hydroxy-4'-O- methyllunularate.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Rycroft, Dr David
Authors: Rycroft, D.S., Heinrichs, J., Cole, W.J., and Anton, H.
Subjects:Q Science > QK Botany
College/School:College of Science and Engineering > School of Chemistry
Journal Name:Journal of Bryology
Publisher:Maney Publishing on behalf of the British Bryological Society
ISSN:0373-6687
Copyright Holders:Copyright © 2001 British Bryological Society
First Published:First published in Journal of Bryology 23(1):23-34
Publisher Policy:Reproduced with the permission of the British Bryological Society

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