Monotropa callistoma

Monotropa callistoma is a species of mycoheterotrophic, non-photosynthetic flowering plant in the family Ericaceae. It was described in 2026 from Hunan, China.

Description

Monotropa callistoma is a fully mycoheterotrophic herb lacking chlorophyll, appearing white when fresh and turning black upon drying. The stems are erect, simple, and fleshy, reaching 9–15 cm in height. Leaves are reduced to alternate, scale-like structures.

The plant produces a solitary, terminal flower. The petals are 4 or 5, glabrous, and bicoloured, being orange in the apical quarter and white in the basal three-quarters. Stamens number 8–10 and have glabrous filaments. The ovary is one-loculed with parietal placentation. The fruit is an ellipsoid-globose berry that becomes nodding at maturity.

Taxonomy

The species was formally described in 2026 by Ze Wei, Li-Jia Liu, and Bing Liu. The type specimen was collected on 29 March 2021 from Shunhuang Mountain in Xinning County, Hunan Province, at an elevation of approximately 1,560 m.

Phylogenetic analyses based on nuclear ribosomal ITS and chloroplast genome data recovered M. callistoma as a distinct lineage within Monotropa, sister to Monotropa uniflora.

Distribution and habitat

Monotropa callistoma is currently known only from its type locality on Shunhuang Mountain in Hunan Province, China. It grows in dense, humid broad-leaved forests at elevations around 1,560 m and is associated with ectomycorrhizal fungi.

Reports from other regions of China, including Guizhou, Yunnan, Guangxi, Sichuan, Xizang, and Chongqing, are based on photographic observations and remain unverified.

Phenology

The species flowers from March to June and fruits from April to July.

Conservation

Monotropa callistoma has been assessed as Data Deficient due to its limited known distribution and lack of comprehensive population data.

Etymology

The specific epithet callistoma is derived from Greek elements meaning "beautiful" and "mouth", referring to the appearance of the corolla opening.

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Sources

https://doi.org/10.3897/phytokeys.271.177609

https://doi.org/10.3897%2Fphytokeys.271.177609

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Revision rows stored: 8

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External links stored: 8

Templates stored: 135

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Apical (anatomy)AsteridsBasal (anatomy)BerryBinomial nomenclatureChinaChlorophyllChloroplastChongqingCorolla (botany)Data DeficientDoi (identifier)Ectomycorrhizal fungiEricaceaeEricalesEudicotsFlowerFlowering plantFruitGlabrousGlossary of botanical termsGuangxiGuizhouHerbHunanHunan ProvinceHunan Province, ChinaInternal transcribed spacerMonotropaMonotropa unifloraMonotropastrum humileMonotropoideaeMycoheterotrophicMycoheterotrophyOvaryPetalsPhotosyntheticPhylogenetic analysesPlantRibosomalSichuanSister groupStamensTaxonomy (biology)Type locality (biology)Type specimenVascular plantXinning CountyXizangYunnan

Backlinks (1)

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External links (8)

https://doi.org/10.3897/phytokeys.271.177609

https://doi.org/10.3897%2Fphytokeys.271.177609

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📊 Wikidata

Subject Facts

QID: Q138762984

Label: Monotropa callistoma

Description: species of flowering plant in the family Ericaceae from China

Wikidata Archive Data

Wikidata type ID: Q16521

Captured: September 16, 2026 10:29 AM

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Monotropa callistoma

Description

Taxonomy

Distribution and habitat

Phenology

Conservation

Etymology

See also

Monotropa callistoma

Description

Taxonomy

Distribution and habitat

Phenology

Conservation

Etymology

See also

See Also

Cheilotheca crocea

Raphiocarpus hapii

Ophiorrhiza jomyi

Stigmatodactylus antennatus

Meiogyne saundersii