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Published in Proceedings of The United States National Museum, in 1911, in volume 39, pages 489-495

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Published in Memoirs of the Queensland Museum, in 1991, in volume 31, pages 214

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Published in Phytologia, in 1981, in volume 48, issue 3, pages 274-275

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Published in Rhodora, in 1902, in volume 4, issue 48, pages 238-243

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