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Issue: Vol. 737 No. 2: 9 Jan. 2026
Type: Article
Published: 2026-01-09
DOI: 10.11646/phytotaxa.737.2.1
Page range: 63-67
Abstract views: 38
PDF downloaded: 34

Re-evaluation of the morphology and distribution of the newly described species Tirpitzia meiguensis (Linaceae)

College of Agricultural Sciences, Xichang University, Xichang 615013, Liangshan Prefecture, Sichuan, China; Panxi Crop Improvement Key Laboratory of Sichuan Province, Xichang University, Xichang 615013, China
College of Agricultural Sciences, Xichang University, Xichang 615013, Liangshan Prefecture, Sichuan, China
College of Agricultural Sciences, Xichang University, Xichang 615013, Liangshan Prefecture, Sichuan, China; Panxi Crop Improvement Key Laboratory of Sichuan Province, Xichang University, Xichang 615013, China
macromorphology plant anatomy Sichuan Province supplementary description Eudicots

Abstract

Tirpitzia meiguensis, a species described in 2023, is the focus of this study. Based on botanical resource surveys conducted in the areas surrounding its type locality, detailed dissection and observation revealed several diagnostic characteristics: its corolla is white, occasionally tinged with pale pink (vs. uniformly white in congeners); the number of stigmas ranges from 3 to 5 (vs. 4–5); and between the fertile stamens, there is either a single linear-lanceolate staminode or a staminode with 2–3 teeth (vs. consistently 3-toothed). In addition to its type locality in Meigu County, this species has also been recorded in neighboring Zhaojue County, suggesting that its existing population size may be considerably larger than previously reported. This paper provides supplementary description of the surface papillae of the flowering branches and discussion on the reduction of seed wings in T. meiguensis, aiming to offer foundational data for a better understanding of the evolutionary systematics within the genus.

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How to Cite

Chen, H., Luo, Q. & Yuan, Y. (2026) Re-evaluation of the morphology and distribution of the newly described species Tirpitzia meiguensis (Linaceae). Phytotaxa 737 (2): 63–67. https://doi.org/10.11646/phytotaxa.737.2.1