A New Species of Typhonium (Araceae) from Vietnam

Publication Type:Journal Article
Year of Publication:2010
Authors:Van Du, N., Croat T. B.
Journal:Novon; a Journal for Botanical Nomenclature. St. Louis, MO
Start Page:195
Keywords:Araceae, IUCN Red List, Typhonium, Vietnam

A new species, Typhonium vermiforme V. D. Nguyen & Croat (Araceae), is described from living materials collected from Quang Binh Province in central Vietnam. It is similar to T. bachmaense V. D. Nguyen & Hett. and T. trilobatum Schott, but differs from the first species by its much shorter spathe (ca. 9 cm long) and the distinctive, filiform and intertwining staminodes. It differs from the second species in having a solitary leaf and a pedate leaf blade.

Full Text

The previously undescribed species presented here was discovered in Tra Noi, Xuan Trach Commune, Bo Trach District, Quang Binh Province, during fieldwork conducted in cooperation between the Institute of Ecology, Biological Resources (IEBR) and the Royal Botanic Garden, Kew (K) in central Vietnam in 2007. It differs from all other previously described species (Gagnepain, 1942; Sriboonma et al., 1994; Sookchaloem, 1995; Nguyen & Croat, 1997; Sookchaloem & Murata, 1997; Hetterscheid & Nguyen, 2001; Hetterscheid et al., 2001; Nguyen & Vu, 2004; Hetterscheid & Galloway, 2006). Because the plant is very rare in the locations where the type specimen was collected, only one voucher was prepared. Its tuber was cultivated in Hanoi, but unfortunately it did not survive; the plant should therefore be re-collected.

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