Orchidantha yunnanensis (Lowiaceae), a new species from China, and notes on the identity of Orchidantha laotica

Zou, Pu; Chen, Xiao; Luo, Shiming; Cui, Chang-Jie; Xu, Kai; Ye, Yushi; Liao, Jingping; Leong‐Škorničková, Jana

doi:10.11646/phytotaxa.302.2.8

Cited by 4 publications

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“…Each enriching branch (paracladium) of the synflorescence bears three bracts and terminates in a coflorescence. The four bracts commonly described in the taxonomic literature are a prophyll followed by two middle bracts and the single floral bract of the coflorescence (Nagamasu and Sakai 1999;Leong-Škorničková 2014;Leong-Škorničková et al 2014;Zou et al 2014Zou et al , 2017Poulsen and Leong-Škorničková 2017). The floral bract subtends a single flower.…”

Section: Inflorescence Structurementioning

confidence: 99%

“…The Lowiaceae, consisting of the single genus Orchidantha, is a small family of approximately 17 species in the plant order Zingiberales, the order that contains the bananas (Musa, Musaceae) and the culinary gingers (Zingiber, Zingiberaceae). Despite a number of descriptions of new species and two pollination studies, the Lowiaceae remain one of the most poorly studied families in the plant order (Nagamasu and Sakai 1999;Sakai and Inoue 1999;Pedersen 2001;Jenjittikul and Larsen 2002;Dǎng Trân and Leong-Škorničková 2010;Leong-Škorničková 2014;Leong-Škorničková et al 2014;Zou et al 2014Zou et al , 2017Poulsen and Leong-Škorničková 2017;Vislobokov et al 2017;Syauqina et al 2019). The vegetative body of Orchidantha is rhizomatous (plant ontology [PO]:0004542), with new shoots (PO:0004701) arising from axillary buds (PO:0004709).…”

Section: Introductionmentioning

confidence: 99%

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Inflorescence and Flower Development in Orchidantha chinensis T. L. Wu (Lowiaceae; Zingiberales): Similarities to Inflorescence Structure in the Strelitziaceae

Kirchoff

Liu

Liao

2020

International Journal of Plant Sciences

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Premise of research. The monotypic Lowiaceae remains the least-known family in the plant order Zingiberales, yet it may hold an important key to unraveling the phylogenetic placement of the families Musaceae, Heliconiaceae, Strelitziaceae, and Lowiaceae. After nine phylogenetic studies, the (Lowiaceae, Strelitziaceae) clade is the only stable clade that has emerged in this half of the order. This study was undertaken to verify the unusual inflorescence and flower structure in Orchidantha and to search for new characters that might be used in future phylogenetic analyses. We describe both inflorescence and flower development in a previously unstudied species; confirm inflorescence morphology in the genus; and compare the structure of the inflorescence in the Lowiaceae with that of the Strelitziaceae, its potential sister group.Methodology. Standard collection and SEM procedures were used to collect and prepare the material for study.Pivotal results. The inflorescence of Orchidantha is borne at the end of a vegetative shoot and is composed of two lateral branches that each bear four bracts and a single flower before aborting. The fourth bract and its associated flower form the highly reduced flower cluster (florescence) that characterizes this genus. In technical terms, Orchidantha has a polytelic synflorescence that lacks a main florescence (it has a truncated polytelic synflorescence) and bears solitary flowers in coflorescences on determinate enriching branches. The enriching branches produce a fixed number of bracts before aborting (i.e., they are special paracladia). Many of these features are shared with the Strelitziaceae.Conclusions. Similarities between the Lowiaceae and Strelitziaceae include inflorescence structure; the presence of a long prolongation of the ovary; and a delay in the formation of the third sepal during flower development, a character that is also shared with the Musaceae. Inflorescence and flower structure is now well established in this small but important family.

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Section: Inflorescence Structurementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Inflorescence and Flower Development in Orchidantha chinensis T. L. Wu (Lowiaceae; Zingiberales): Similarities to Inflorescence Structure in the Strelitziaceae

Kirchoff

Liu

Liao

2020

International Journal of Plant Sciences

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“…Orchidantha N. E. Brown is the only genus in the monogeneric family Lowiaceae in the order Zingiberales (Larsen 1998). The genus comprises 21 species from southern China, Laos, Vietnam, Thailand and Peninsular Malaysia, extending to Borneo, which seems to be the centre of its diversity (Zou et al 2017). All species are endemic to their country of occurrence.…”

Section: Introductionmentioning

confidence: 99%

“…In 1996, O. longisepala D.Fang was described from southern Guangxi (Fang and Qin 1996), but Wu (1997) reduced it to O. chinensis var. longisepala (D.Fang) T. L.Wu, arguing that these two taxa differ merely by the flower size (Zou et al 2017). In 2017, O. yunnanensis P.Zou, C.F.Xiao & Škorničk.…”

Section: Introductionmentioning

confidence: 99%

Orchidantha crassinervia sp. nov. (Lowiaceae) from Guangxi, China

Zou

Chen

et al. 2019

Nordic Journal of Botany

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Here we describe and illustrate a new species, Orchidantha crassinervia sp. nov. (Lowiaceae), from Guangxi Province, China. The species is closely related to O. yunnanensis and O. virosa, but can be distinguished from these species in possessing a very thick midrib of the labellum, fewer flowers per inflorescence and by a shorter plant height. The species is known only from the three populations within 3 km.

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“…A more detailed general introduction to Lowiaceae was given in Trần & Leong-Škorničková 2010. Recent work on Lowiaceae has uncovered several new taxa from continental Asia (Trần & Leong-Škorničková 2010, Leong-Škorničková 2014, LeongŠkorničková et al 2014, Zou et al 2017) as well as one new species from Borneo (Syauqina et al 2016). Eight species (and one variety) of the family Lowiaceae are found north of the Isthmus of Kra throughout the Indochinese floristic region and into southernmost China.…”

Section: Introductionmentioning

confidence: 99%

Two new Orchidantha species (Lowiaceae) from Borneo

Poulsen¹,

Leong‐Škorničková²

2017

blum - j plant tax and plant geog

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Two new Orchidantha species discovered in Sarawak, O. micrantha and O. megalantha, are described and illustrated. They may well represent the species with the smallest and the largest flowers currently known in the genus and certainly from Borneo. With its small flowers, O. micrantha is similar to O. borneensis to which it is compared. The large-flowered O. megalantha is compared to the morphologically closest species, O. holttumii, from nearby Brunei. The conservation status of both new species is assessed and a key is provided to all Bornean species.

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Orchidantha yunnanensis (Lowiaceae), a new species from China, and notes on the identity of Orchidantha laotica

Cited by 4 publications

References 0 publications

Inflorescence and Flower Development in Orchidantha chinensis T. L. Wu (Lowiaceae; Zingiberales): Similarities to Inflorescence Structure in the Strelitziaceae

Inflorescence and Flower Development in Orchidantha chinensis T. L. Wu (Lowiaceae; Zingiberales): Similarities to Inflorescence Structure in the Strelitziaceae

Orchidantha crassinervia sp. nov. (Lowiaceae) from Guangxi, China

Two new Orchidantha species (Lowiaceae) from Borneo

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