@article {541,
	title = {Anales del Museo Nacional de Montevideo},
	volume = {6(3)},
	year = {1906},
	author = {Arechavaleta, Jos{\'e}}
}
@article {263,
	title = {Leaflets of Botanical Observation and Criticism. Washington, DC},
	volume = {1(14)},
	year = {1906},
	author = {Greene}
}
@article {128,
	title = {Bull. New York Bot. Gard.},
	volume = {4},
	year = {1906},
	author = {Gleason}
}
