Published October 14, 2025
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Table 3. Morphological comparisons between Polyalthia evecta - 3 in Uncovering five new species of Polyalthia (Annonaceae, Miliuseae) from Thailand: molecular and morphological congruence
Authors/Creators
- 1. Herbarium, Department of Biology, Faculty of Science, Chiang Mai University, 239 Huay Kaew Rd., Chiang Mai 50200, Thailand. & Queen Sirikit Botanic Garden, The Botanical Garden Organization, 100 Moo 9, Mae Rim, Chiang Mai 50180, Thailand.
- 2. Herbarium, Department of Biology, Faculty of Science, Chiang Mai University, 239 Huay Kaew Rd., Chiang Mai 50200, Thailand.
- 3. Independent Research Group on Plant Diversity in Thailand, 13 Moo 1, Khaonoi, Sichon, Nakhon Si Thammarat 80120, Thailand.
- 4. Herbarium, Department of Biology, Faculty of Science, Chiang Mai University, 239 Huay Kaew Rd., Chiang Mai 50200, Thailand. & Forest Herbarium, Department of National Parks, Wildlife and Plant Conservation, 61 Phahonyothin Rd., Bangkok 10900, Thailand.
Description
Table 3. Morphological comparisons between Polyalthia evecta -3 [= P. esanensis Wiya, Damth. & Chaowasku sp. nov.], P. evecta -4 [= P. acuminatissima Wiya, Damth. & Chaowasku sp. nov.], P. evecta -2 [= true P. evecta (Pierre) Finet & Gagnep.] and P. chantaranothaii Bunchalee & Chalermglin. Data for the true P. evecta are from Pierre (1881) and personal observations; data for P. chantaranothaii are from Bunchalee et al. (2021b) and personal observations.
| Feature | P. evecta -3 [= P. esanensis sp. nov.] | P. evecta -4 [= P. acuminatissima sp. nov.] | P. evecta -2 [= true P. evecta] | P. chantaranothaii |
|---|---|---|---|---|
| Young twigs | densely hairy | sparsely hairy | densely hairy | densely hairy |
| Leaf texture | chartaceous | chartaceous-subcoriaceous | no data available | chartaceous |
| Length of leaf acumen (mm) | 6.0–9.0 | (12.0–)16.0–26.0 | 0 (acumen absent) | 10.0–15.0 |
| Pedicel length (mm; in flower) | 5.0–11.0 | 4.5–11.0 | (12.5–)15.0–30.0 | 4.0–6.0 |
| Outer petal length (mm) | 5.5–5.8 | 4.5–5.5 | 4.5–5.5 | 2.0–2.5 |
| Number of carpels per flower | 7–13 | 4–11 | (30–)40–60 | 10–15 |
Notes
Published as part of Wiya, Chattida, Damthongdee, Anissara, Chanthamrong, Kithisak, Ue-Aree, Phasit & Chaowasku, Tanawat, 2025, Uncovering five new species of Polyalthia (Annonaceae, Miliuseae) from Thailand: molecular and morphological congruence, pp. 255 in European Journal of Taxonomy 1022 on page 255, DOI: 10.5852/ejt.2025.1022.3093, http://zenodo.org/record/17361666
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Additional details
Identifiers
References
- Pierre L. 1881. Flore forestiere de la Cochinchine. Fasc. 2. Doin, Paris. https://doi.org/10.5962/bhl.title.61558
- Bunchalee P., Johnson D. M., Murray N. A. & Leeratiwong C. 2021 b. Three new species of Polyalthia (Annonaceae) from Thailand and Laos. Phytotaxa 512 (4): 272-282. https://doi.org/10.11646/phytotaxa.512.4.3