Published in Botanical Museum Leaflets, Harvard University, in 1959, in volume 18, pages 329-356

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Published in Botanical Museum Leaflets, Harvard University, in 1959, in volume 18, pages 413-427

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Published in Botanical Museum Leaflets, Harvard University, in 1959, in volume 18, pages 428-440

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Published in Botanical Museum Leaflets, Harvard University, in 1959, in volume 18, pages 357-387

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Published in Botanical Museum Leaflets, Harvard University, in 1959, in volume 18, pages 389-411

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Published in Entomological News, in 1980, in volume 91, pages 7-9

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Published in Pacific Science, in 1966, in volume 20, issue 1, pages 70-78

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Published in The Wilson Bulletin, in 1977, in volume 89, issue 2, pages 233-242

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Published in American Fern Journal, in 1991, in volume 81, pages 95-98

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