@article {3061,
	title = {Prothallia of Lycopodium in America},
	journal = {Bot. Gaz.},
	volume = {74},
	year = {1922},
	month = {1922///},
	pages = {392 - 413},
	author = {Spessard, E. A.}
}
@article {3008,
	title = {Prothallia of Lycopodium in America},
	journal = {Bot. Gaz.},
	volume = {63},
	year = {1917},
	month = {1917///},
	pages = {66 - 76},
	author = {Spessard, E. A.}
}
