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Support the Flora of the Southeastern US

2024 has been a banner year for making the best flora we can imagine. We've created:
With financial support from people like you, we are aiming even higher in 2025. Together we can accomplish all this: Vote on our 2025 priorities
  • Add Global Conservation Ranks (GRanks) vote
  • Professional graphic keys (polyclaves) to individual families/genera vote
  • 2 new FloraQuest apps: Florida & Mid-South vote
  • Image overlays highlighting diagnostic characters with arrows vote
  • iNaturalist integration in FloraQuest vote
Write-in vote: vote
We've set a goal of recruiting 200 ongoing supporters to donate $15 or more each month in 2025. Please help us reach this goal and make next year's flora even better:
Donate $15 per month
(0.2¢/heliophily index)
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References

For Pyrus

Catling, P.M., and G. Mitrow. 2014a. Pyrus. In Flora of North America Editorial Committee. 2014. Flora of North America north of Mexico. Volume 9, Magnoliophyta: Picramniaceae to Rosaceae. Oxford Univ. Press, New York, NY. 713 pp. Google Scholar

Kalkman. 2004. In Kubitzki, K., ed. 2004. The families and genera of vascular plants. VI. Flowering plants – Dicotyledons – Celastrales, Oxalidales, Rosales, Cornales, Ericales. Springer, Berlin. 489 pp. Google Scholar

Robertson, K.R. 1974. The genera of Rosaceae in the southeastern United States. J. Arnold Arb. 55: 303-332, 344-401, 611-662. Google Scholar

Wright, R.A.S., R.H. Simmons, J.M. Parrish, and M. Ellis. 2023. Noteworthy collections: Maryland and Virginia. Castanea 88(1): 61-78. Google Scholar

Zheng, Z., D. Cai, D. Potter, J. Postman, J. Liu, and Y. Teng. 2014. Phylogeny and evolutionary histories of Pyrus L. revealed by phylogenetic trees and networks based on data from multiple DNA sequences. Molec. Phylogen. Evol. 80: 54-65. Google Scholar