المؤلفون: Zomlefer, Wendy B., Carter, J. Richard, Allison, James R., Baker, W. Wilson, Giannasi, David E., Hughes, Steven C., Lance, Ron W., Lowe, Phillip D., Lynch, Patrick S., Miller, Jennifer T., Patrick, Thomas S., Prostko, Eric, Sewell, Sabrina Y.S., Weakley, Alan S.

المصدر: Castanea, 2018 Jan 01. 83(1), 124-139.

URL الوصول: https://www.jstor.org/stable/26797237

المؤلفون: Poindexter, Derick B., Lance, Ron W.

المصدر: Journal of the Botanical Research Institute of Texas, 2011 Aug 01. 5(1), 349-350.

URL الوصول: https://www.jstor.org/stable/41972533

المؤلفون: Schmid, Rudolf, Phipps, James B., O'Kennon, Robert J., Lance, Ron W.

المصدر: Taxon ; volume 52, issue 4, page 884 ; ISSN 0040-0262

الاتاحة: http://dx.doi.org/10.2307/3647377
http://onlinelibrary.wiley.com/wol1/doi/10.2307/3647377/fullpdf