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. 2023 Jul 13:229:131-138.
doi: 10.3897/phytokeys.229.106466. eCollection 2023.

A new species of Amorphophallus (Araceae) from northeastern Thailand

Wilawan Promprom  1 , Wannachai Chatan  1 , Pattana Pasorn  1 , Narueset Prasertsri  1 , Thinnakon Angkahad  1
Affiliations

A new species of Amorphophallus (Araceae) from northeastern Thailand

Wilawan Promprom et al. PhytoKeys. .

Abstract

Amorphophallussakonnakhonensis Chatan & Promprom, a new species from northeastern Thailand, is described and illustrated. The new species is most similar to A.harmandii Engl. & Gehrm. and A.linearis Gagnep., but it is distinguished by the combination of characters as follows: clear differences with A.harmandii are shorter style; disc-like, slightly smooth surface, concave centre, ca. 0.2 × 0.1 mm stigma; slightly cylindrical, slightly narrower upper part of staminate flower zone; slightly cylindrical to elongate-fusiform, erect or slightly erect, creamy white appendix. The clearly distinct morphology with A.linearis are disc-like, slightly smooth surface, concave centre, ca. 0.2 × 0.1 mm stigma; elliptic or obovate leaflet; 1-3 cm long, creamy white appendix. The preliminary conservation status was assessed, and the distinct characteristics of similar species were discussed.

Keywords: Amorphophallussakonnakhonensis; Araceae; aroid; plant diversity; plant taxonomy.

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Conflict of interest statement

The authors have declared that no competing interests exist.

Figures

Figure 1.
Figure 1.
Amorphophallussakonnakhonensis Chatan & Promprom. A habitat and habit B habit.
Figure 2.
Figure 2.
Amorphophallussakonnakhonensis Chatan & Promprom. A whole plant B, C tuber and inflorescence from the same plant D spadix E infructescence and fruits F seeds.
Figure 3.
Figure 3.
Amorphophallussakonnakhonensis Chatan & Promprom. A whole plant B, C tuber and inflorescence from the same plant D seeds E spadix F staminate flowers G pistillate flowers H infructescence and fruits I fruit.
Figure 4.
Figure 4.
Distribution of Amorphophallussakonnakhonensis Chatan & Promprom (green circle).
See this image and copyright information in PMC

References

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