Psidium Explained

Psidium is a genus of trees and shrubs in the family Myrtaceae. It is native to warmer parts of the Western Hemisphere (Mexico, Central and South America, the West Indies the Galápagos islands).^[1] Many of the species bear edible fruits, and for this reason several are cultivated commercially.^[2] The most popularly cultivated species is the common guava, Psidium guajava.

Taxonomy

This genus was described first by Linnaeus in 1753.^{[3] [4]}

Fossils are known from the Paleogene of Patagonia.^[5]

Species

78 species are accepted.

Notes and References

1. • Kew World Checklist of Selected Plant Families
   • Govaerts, R., Sobral, N., Ashton, P., Barrie, F., Holst, B.K., Landrum, L.L., Matsumoto, K., Fernanda Mazine, F., Nic Lughadha, E., Proença, C. & al. (2008). World Checklist of Myrtaceae: 1-455. Kew Publishing, Royal Botanic Gardens, Kew.
   • Davidse, G., M. Sousa Sánchez, S. Knapp & F. Chiang Cabrera. 2009. Cucurbitaceae a Polemoniaceae. 4(1): i–xvi, 1–855. In G. Davidse, M. Sousa Sánchez, S. Knapp & F. Chiang Cabrera (eds.) Flora Mesoamericana. Universidad Nacional Autónoma de México, México.
   • Landrum, L. R. & M. L. Kawasaki. 1997. The genera of Myrtaceae in Brazil: an illustrated synoptic treatment and identification keys. Brittonia 49(4): 508–536.
   • Sánchez-Vindas, P. E. 1989. Flora de Nicaragua: Myrtaceae. Brenesia 31: 53–73.
   • Sánchez-Vindas, P. E. 2001. Calycolpus, Eugenia, Myrcia, Myrcianthes, Myrciaria, Pimenta, Plinia, Psidium, Syzygium, Ugni. En: Stevens, W.D., C. Ulloa, A. Pool & O.M. Montiel (eds.), Flora de Nicaragua. Monographs in systematic botany from the Missouri Botanical Garden 85(2): 1566, 1570–1574, 1575–1580.
   • Biota of North America Program, 2013 county distribution maps, genus Psidium
2. Book: The Encyclopedia of Fruit and Nuts . Jules Janick, Robert E. Paull . illustrated . CABI . 2008 . 9780851996387.
3. https://www.biodiversitylibrary.org/page/358489#page/482/mode/1up Linnaeus, Carl von. 1753. Species Plantarum 1: 470
4. http://www.tropicos.org/Name/40018772 Tropicos, Psidium L.
5. Panti . Carolina . 2016-05-18 . Myrtaceae fossil leaves from the Río Turbio Formation (Middle Eocene), Santa Cruz Province, Argentina . Historical Biology . en . 28 . 4 . 459–469 . 10.1080/08912963.2014.976635 . 2016HBio...28..459P . 84988707 . 0891-2963. 11336/19131 . free .