@article {465,
	title = {Studies in the Boraginaceae, XIII. New or otherwise noteworthy species, chiefly from western United States},
	journal = {Journal of the Arnold Arboretum},
	volume = {20},
	year = {1939},
	month = {1939///},
	pages = {375 - 402},
	url = {http://biodiversitylibrary.org/page/8369985},
	author = {Johnston, I. M.}
}
@article {467,
	title = {Studies in the Boraginaceae XX. Representatives of three subfamilies in eastern Asia},
	journal = {Journal of the Arnold Arboretum},
	volume = {32},
	year = {1951},
	month = {1951///},
	pages = {99 - 122},
	url = {http://biodiversitylibrary.org/page/8371554},
	author = {Johnston, I. M.}
}
@article {406,
	title = {Studies in the Boraginaceae XII. 2. Novelties and critical notes},
	journal = {Journal of the Arnold Arboretum},
	volume = {18},
	year = {1937},
	month = {1937///},
	pages = {10 - 25},
	url = {http://biodiversitylibrary.org/page/8103188},
	author = {Johnston, I. M.}
}
@article {383,
	title = {Studies in the Boraginaceae XI. 1. The species of Tournefortia and Messerschmidia in the Old World},
	journal = {Journal of the Arnold Arboretum},
	volume = {16},
	year = {1935},
	month = {1935///},
	pages = {145 - 168},
	url = {http://biodiversitylibrary.org/page/8105037},
	author = {Johnston, I. M.}
}
@article {384,
	title = {Studies in the Boraginaceae X. The Boraginaceae of Northeastern South America},
	journal = {Journal of the Arnold Arboretum},
	volume = {16},
	year = {1935},
	month = {1935///},
	pages = {1 - 64},
	url = {http://biodiversitylibrary.org/page/8104881},
	author = {Johnston, I. M.}
}
@article {385,
	title = {Studies in the Boraginaceae XVIII. Boraginaceae of the southern West Indies},
	journal = {Journal of the Arnold Arboretum},
	volume = {30},
	year = {1949},
	month = {1949///},
	pages = {111 - 138},
	url = {http://biodiversitylibrary.org/page/9261097},
	author = {Johnston, I. M.}
}
