Saturday, June 12, 2021

[Botany • 2021] Thismia clavigeroides (Thismiaceae) พิศวงเขาหลัก • A New Mycoheterotrophic Species from Thailand

Thismia clavigeroides Chantanaorr. & Seelanan,

in Chantanaorrapint & Seelanan, 2021.
พิศวงเขาหลัก || DOI: 10.1600/036364421X16128061189468
Photographed by S. Chantanaorrapint.

Thismia clavigeroides is described and illustrated as a new species from southern Thailand. The new species is characterized by coralliform roots, whitish-gray flowers, reflexed outer perianth lobes, inner perianth lobes forming a mitre with three slender claviform appendages, inner surface of floral tube possessing transverse bars, and the apex of stamen bearing three triangular lobes. A taxonomic description, illustrations of the new species, and a comparison with the related species are presented.

Thismia clavigeroides Chantanaorr. & Seelanan,
 A. Plants in natural habitat. B. Plants with flowers and roots. C. Top view of mitre. D–E. Side view of mitre. F. Tips of claviform appendages. G. Longitudinal section of perianth tube with three stamens. H. Inner view of three pendulous stamens. I. Ovary with style and stigma.
Photographed by S. Chantanaorrapint.

Thismia clavigeroides Chantanaorr. & Seelanan, sp. nov.

Etymology— The new species is named after the great morphological similarity to T. clavigera.

  Sahut Chantanaorrapint and Tosak Seelanan. 2021. Thismia clavigeroides (Thismiaceae), A New Mycoheterotrophic Species from Thailand. Systematic Botany. 46(1); 18-23. DOI: 10.1600/036364421X16128061189468

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