Abstract

A new species of Acanthaceae, Strobilanthes namkadingensis Soulad. & Tagane from Nam Kading National Protected Area, Bolikhamxay Province, central Laos, is described and illustrated. It is characterized by long spicate inflorescences consisting of 6-32 flowers, yellow corolla, the absence of long white hairs on the bracts and 4–6 seeds per capsule. Three DNA barcode regions of the partial genes for the large sub-unit ribulose-1,5-bisphosphate carboxylase oxygenase (rbcL) and maturase K (matK) and internal transcribed spacers (ITS) are also provided.

Highlights

  • Strobilanthes Blume, consisting of ca. 400 species is one of the largest genera in the family Acanthaceae (Hu et al 2011)

  • We describe a new species of Strobilanthes from Nam Kading National Protected Area, Bolikhamxay Province, central Laos

  • Temperature in the lowland of Bolikhamxay Province varies between 20°C and 30°C, but in the high altitude areas of Nam Kading Protected Area it may drop to as low as 5°C during dry season from December to February (Hallam and Hedemark 2013)

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Summary

Introduction

Strobilanthes Blume, consisting of ca. 400 species is one of the largest genera in the family Acanthaceae (Hu et al 2011). We describe a new species of Strobilanthes from Nam Kading National Protected Area, Bolikhamxay Province, central Laos. Temperature in the lowland of Bolikhamxay Province varies between 20°C and 30°C, but in the high altitude areas of Nam Kading Protected Area it may drop to as low as 5°C during dry season from December to February (Hallam and Hedemark 2013).

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