4 Reads
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25 Citations
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4 Reads
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25 Citations
... Th e species was fi rst described from the Canaries by Willdenow (1809) and subsequently recorded from Madeira by Lowe (1831) who believed there to be suffi cient diff erences between the Canarian and Madeiran plants to justify the recognition of the latter as a separate species ( R. grandifolius Lowe) based on size, pubescence, and diff erences in infl orescence structure. However, this distinction was not generally accepted by subsequent authors (e.g., Hooker, 1852 ;Masferrer, 1880 ). ...