@book {20306,
	title = {The Bahama Flora},
	year = {1920},
	publisher = {published by the authors},
	organization = {published by the authors},
	address = {New York},
	url = {http://www.biodiversitylibrary.org/item/20679$\#$page/7/mode/1up},
	author = {Britton, Nathaniel L. and Millspaugh, Charles F.}
}
@article {20293,
	title = {Additamenta monographica 1919},
	journal = {Repertorium Specierum Novarum Regni Vegetabilis},
	volume = {16},
	year = {1920},
	pages = {305-312},
	chapter = {305},
	url = {http://www.biodiversitylibrary.org/item/7040$\#$page/325/mode/1up},
	author = {Mez, Carl}
}
@article {20288,
	title = {Plantae Mexicanae Purpusianae, X},
	journal = {University of California Publications in Botany},
	volume = {7},
	year = {1920},
	month = {12/1920},
	pages = {325-331},
	chapter = {325},
	url = {http://www.biodiversitylibrary.org/item/24641$\#$page/393/mode/1up},
	author = {Brandegee, Townshend S.}
}
@article {20244,
	title = {A preliminary revision of the North American and West Indian avocados (Persea spp.)},
	journal = {Journal of the Washington Academy of Sciences},
	volume = {10},
	year = {1920},
	pages = {9-21},
	chapter = {9},
	url = {http://www.biodiversitylibrary.org/item/28031$\#$page/17/mode/1up},
	author = {Blake, Sidney F.}
}
@article {20076,
	title = {The American and Asiatic species of Sassafras},
	journal = {Journal of the Arnold Arboretum},
	volume = {1},
	year = {1920},
	pages = {242-245},
	chapter = {242},
	url = {http://www.biodiversitylibrary.org/item/33583$\#$page/246/mode/1up},
	author = {Rehder, Alfred}
}
@article {20075,
	title = {Camphor - Cinnamomum camphora Nees \& Ebermaier},
	journal = {Journal of the Arnold Arboretum},
	volume = {1},
	year = {1920},
	pages = {239-242},
	chapter = {239},
	url = {http://www.biodiversitylibrary.org/item/33583$\#$page/243/mode/1up},
	author = {Wilson, Ernest H.}
}
@article {19976,
	title = {Descriptions of Cuban plants new to science},
	journal = { Memoirs of the Torrey Botanical Club},
	volume = {16},
	year = {1920},
	month = {09/1920},
	pages = {57-118},
	chapter = {57},
	url = {http://www.biodiversitylibrary.org/item/98629$\#$page/75/mode/1up},
	author = {Britton, Nathaniel L.}
}
@article {19916,
	title = {Additional notes on the Kwangtung flora},
	journal = {Philippine Journal of Science},
	volume = {15},
	year = {1920},
	month = {01/1920},
	pages = {225-261},
	chapter = {225},
	url = {http://www.biodiversitylibrary.org/item/1125$\#$page/256/mode/1up},
	author = {Merrill, Elmer D}
}
@book {19797,
	title = {Descriptions of three hundred new species of South American plants},
	year = {1920},
	publisher = {published by the author},
	organization = {published by the author},
	address = {New York},
	url = {http://www.biodiversitylibrary.org/item/117632$\#$page/5/mode/1up},
	author = {Rusby, Henry H}
}
@article {19794,
	title = {Laurac{\'e}es de la for{\^e}t d{\textquoteright}Analamazaotra (Madagascar)},
	journal = {Bulletin du Muséum National d{\textquoteright}Histoire Naturelle},
	volume = {26},
	year = {1920},
	pages = {547-550, 650-653},
	chapter = {547},
	url = {http://www.biodiversitylibrary.org/page/5034115$\#$page/577/mode/1up},
	author = {Danguy, Paul}
}
