The rediscovery of Dioscorea rockii Prain & Burkill, endemic to Northern Thailand

Authors

  • Chirdsak Thapyai Department of Biology, Faculty of Science, Naresuan University
  • Paul Wilkin Royal Botanic Gardens, Kew
  • Kongkanda Chayamarit The Forest Herbarium (BKF), National Park, Wildlife and Plant Conservation Department

Keywords:

Dioscorea rockii Prain & Burkill

Abstract

Dioscorea rockii Prain & Burkill was known from a single specimen from Northern Thailand collected in 1922 with immature capsules. The discovery of male plants and its underground organs renders its full description and illustrations. It is restricted to the lower montane evergreen forests between 1000 and 1700 m altitude. A preliminary conservation assessment is given. The tendency for control of sex expression in the flowers with male flowers on female plants (and vice versa) of some individuals of this species, particularly at Doi Phu Kha in Nan is noted.

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Author Biographies

Chirdsak Thapyai, Department of Biology, Faculty of Science, Naresuan University

Department of Biology, Faculty of Science, Naresuan University, Phitsanulok, Thailand.

Paul Wilkin, Royal Botanic Gardens, Kew

Royal Botanic Gardens, Kew, Richmond, Surrey, TW9 3AB,UK.

Kongkanda Chayamarit, The Forest Herbarium (BKF), National Park, Wildlife and Plant Conservation Department

The Forest Herbarium (BKF), National Park, Wildlife and Plant Conservation Department, 61 Phahonyothin
Rd., Chatuchak, Bangkok 10900 Thailand.

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How to Cite

Thapyai, C., Wilkin, P., & Chayamarit, K. (2014). The rediscovery of Dioscorea rockii Prain & Burkill, endemic to Northern Thailand. Thai Forest Bulletin (Botany), (33), 220–227. Retrieved from https://li01.tci-thaijo.org/index.php/ThaiForestBulletin/article/view/24323

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