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	year = {1906},
	month = {1906///},
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	author = {Holm, T.}
}
@article {3422,
	title = {Pyrola aphylla: a morphological study},
	journal = {Bot. Gaz.},
	volume = {25},
	year = {1898},
	pages = {246 - 254},
	author = {Holm, T.}
}
@article {2781,
	title = {Obolaria virginica L.: A morphological and anatomical study},
	journal = {Ann. Bot.},
	volume = {11},
	year = {1897},
	month = {1897///},
	pages = {369 - 383},
	author = {Holm, T.}
}
