Engelhardia Explained

Engelhardia is a genus of trees in the family Juglandaceae, native to tropical Asia from northern India east to Taiwan, Indonesia and the Philippines. The genus name is commonly misspelled "Engelhardtia", a "correction" made by the original author Carl Ludwig Blume in 1829 and persistent until today, as it was thus entered in the Index Kewensis; the original spelling is Engelhardia.

Fossil record

Engelhardia pollen has been found in deposits of Miocene Age in Denmark.^[1] †Engelhardia orsbergensis leaf fossils have been uncovered from rhyodacite tuff of Lower Miocene age in Southern Slovakia near the town of Lučenec.^[2] †Engelhardia orsbergensis and †Engelhardia macroptera fossils have been uncovered from late Miocene strata in Iceland.^[3]

Species

, Plants of the World Online recognised the following species and varieties:

• Engelhardia apoensis, native to Malaya, Borneo, the Philippines
• Engelhardia danumensis
• Engelhardia hainanensis, native to China
• Engelhardia kinabaluensis
• Engelhardia mendalomensis
• Engelhardia mersingensis
• Engelhardia mollis
• Engelhardia rigida, native to Java, Borneo, New Guinea, the Philippines
• Engelhardia roxburghiana
• Engelhardia serrata, native to southwest China, Indochina, Indonesia, and the Philippines
  • Engelhardia serrata var. cambodiana
  • Engelhardia serrata var. serrata
• Engelhardia spicata, native to Nepal, southern Asia, the Philippines, and New Guinea
  • Engelhardia spicata var. integra, Fl. Males. I, 6: 953 (1972); Grierson & Long, Notes Roy. Bot. Gard. Edinburgh 40: 133. (1982), isonym; syn. var. colebrookiana (Lindl.) Koorders & Valeton
  • Engelhardia spicata var. spicata

External links

• Flora of China: Engelhardia

Notes and References

1. Larsson . Linda M. . Vajda . Vivi . Rasmussen . Erik S. . Early Miocene pollen and spores from western Jylland, Denmark - environmental and climatic implications . GFF . Informa UK Limited . 128 . 3 . 2006 . 1103-5897 . 10.1080/11035890601283261 . 261–272. 2006GFF...128..261L . 129320973 .
2. Vojtko . Rastislav . Miocénna flóra z lokalít Kalonda a Mučín . Acta Geologica Slovaca . 1 . 1 . 2016-10-21 . 1338-0044 . 65–70 . sk . 2019-07-08. Miocene flora from the localities Kalonda and Mučín.
3. Book: Denk. Thomas. Grimsson. Friðgeir. Zetter. Reinhard. Leifur A. . Símonarson. Late Cainozoic Floras of Iceland: 15 Million Years of Vegetation and Climate History in the Northern North Atlantic. 28 March 2011. Springer Science & Business Media. 978-94-007-0372-8.