Thismia nigricans Chantanaorr. & Sridith, a new species of Thismiaceae from Southern Thailand

Abstract

Thismia nigricans Chantanaorr. & Sridith is described and illustrated as a new species from Sri Phangnga National Park, southern Thailand. A taxonomic description, illustrations of the new species and a comparison with the related species T. angustimitra Chantanaorr. and T. mirabilis K. Larsen are presented.

Thismia nigricoronata, a new species of Burmanniaceae (Thismieae, Dioscoreales) from Vang Vieng, Vientiane Province, Laos, and a key to subgeneric classification

“…The genus has received a lot of botanical interest lately with the publication of 16 new species from Asia and the Pacific (Thiele & Jordan 2002, Yang et al 2002, Tsukaya & Okada 2005, Larsen & Averyanov 2007, Chantanaorrapint 2008, Chiang & Hsieh 2011, Chantanaorrapint 2012, Tsukaya & Okada 2012, Dančák et al 2013, Li & Bi 2013, Nuraliev et al 2014, Truòng et al 2014, Mar & Saunders 2015, Nuraliev et al 2015, Chantanaorrapint & Sridith 2015, as well as several new records (Chantanaorrapint & Sridith 2007, Chantanaorrapint & Chantanaorrapint 2009, Ho et al 2009) in the last 15 years alone.…”

Flora of Bokor National Park VII: Thismia bokorensis (Burmanniaceae), a new species representing a new generic record

“…Considering that the majority of these species were collected only once (Jonker 1948), and that many new species have recently been discovered, especially from various Southeast Asian countries (e.g., Tsukaya & Okada 2012, Dančák et al 2013, Nuraliev et al 2014, Truong et al 2014, Chantanaorrapint & Sridith 2015, Li & Bi 2013, Hroneš et al 2015, many more undescribed species are probably still hidden in the tropical rain forests of Southeast Asia.…”

Drastic reduction of plastome size in the mycoheterotrophic Thismia tentaculata relative to that of its autotrophic relative Tacca chantrieri

“…Species of this genus are primarily distributed in tropical areas, with the notable exception of Thismia americana Pfeiff., which is likely extinct (Merckx and Smets, 2014). Approximately 70 species have been described, but new species are being discovered regularly, particularly in East and Southeast Asia (e.g., Kiew, 1999; Yang et al, 2010; Chantanaorrapint, 2012; Tsukaya and Okada, 2012; Dančák et al, 2013; Lưu et al, 2014; Nuraliev et al, 2014; Chantanaorrapint and Sridith, 2015; Mar and Saunders, 2015). They are infrequently encountered, being ephemerally aboveground only when in flower and fruit.…”