The Taxonomic Significance of ducts in the corolla lobes of Vernonia (Vernonieae: Asteraceae)
The multiple longitudinal ducts in the corolla lobes found in the closely related genera Vernonia, Vernonanthura and Trepadonia are microscopically studied and illustrated. The lack of such ducts in the two South American species that have until now been retained in Vernonia indicates that they shou...
| Main Authors: | , |
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| Format: | Online |
| Language: | English |
| Published: |
Pensoft Publishers
2016
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| Online Access: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4743011/ |