Lasianthus yalaensis (Rubiaceae), a new species from peninsular Thailand

Tiwtawat Napiroon*, Manop Poopath, Sutee Duangjai, Henrik Balslev, Srunya Vajrodaya

*Corresponding author for this work

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

Abstract

Lasianthus yalaensis Napiroon, Duangjai & Poopath is described and illustrated with notes on its conservation, and phylogenetic placement. The new species is morphologically similar to L. pilosus from which it differs in: its strigose branches (vs pilose), leaf blade 5–8 × 2–2.5 cm (vs 10–12.5 cm), 7–8 pairs of nerves (vs 9–15), stipules 5–7 mm long (vs <3 mm) and lanceolate (vs triangular-lanceolate), bracts 4–10 mm long (vs 4–5 mm) and covered with strigose hairs (vs pilose), flowers with cupular calyx (vs tubular), the lobes five and lanceolate (vs 5–7 and lanceolate-linear), corolla tube hirsute external surface (vs pilose) and glabrous internal surface (vs puberulous), drupes crowned by five calyx lobes (vs six), the lobes 1 mm long and strigose (vs 3 mm and pilose). Molecular analysis based on nuclear and plastid markers revealed that L. yalaensis is nested within the Asian clade and is closely related to L. pilosus.

Original languageEnglish
JournalPhytotaxa
Volume364
Issue2
Pages (from-to)172-180
Number of pages9
ISSN1179-3155
DOIs
Publication statusPublished - 9 Aug 2018

Keywords

  • Lasiantheae
  • Taxonomy
  • Strigose
  • Phylogenetic placement
  • Yala province
  • BAYESIAN PHYLOGENETIC INFERENCE
  • COFFEE FAMILY
  • DNA-SEQUENCES
  • CARYOPHYLLACEAE
  • RUBIOIDEAE
  • CLASSIFICATION
  • COLLETOECEMA
  • EVOLUTION
  • POSITION
  • MRBAYES

Fingerprint

Dive into the research topics of 'Lasianthus yalaensis (Rubiaceae), a new species from peninsular Thailand'. Together they form a unique fingerprint.

Cite this