For Torreya
Hils, M.H. 1993. Taxaceae. In Flora of North America Editorial Committee. 1993b. Flora of North America north of Mexico. Volume 2, pteridophytes and gymnosperms. Oxford Univ. Press, New York, NY. 475 pp.
Page. 1990. In Kramer, K.U., and P.S. Green. 1990. Pteridophytes and Gymnosperms. In K. Kubitzki, ed., The families and genera of vascular plants. Springer-Verlag, Berlin.
Price, R.A. 1990.a The genera of Taxaceae in the southeastern United States. J. Arnold Arb. 71: 69-91.
Zhou, W., AJ Harris, and Q.-Y. (J.) Xiang. 2022. Phylogenomics and biogeography of Torreya (Taxaceae) -- integrating data from three organelle genomes, morphology, and fossils and a practical method for reducing missing data from RAD‐seq. J. Syst. Evol. 60(6): 1241-1262.
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