Pennell, Francis Whittier, 1936, Botanical results of the Archbold Expedition No. 7: new and noteworthy Papuan Scrophulariaceae

Pennell, Francis Whittier, 1936, Botanical results of the Archbold Expedition No. 7: new and noteworthy Papuan Scrophulariaceae, Brittonia 2, pp. 177-188

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