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This species is accepted, and its native range is Arunachal Pradesh.

[KBu]

Bhaumik, M. 2014. Chrysosplenium arunachalense (Saxifragaceae), a new species from India. Kew Bulletin 69: 9491. DOI https://doi.org/10.1007/s12225-014-9491-3

Conservation
This new species very localised in distribution, in small populations. Its true status cannot be defined until further information regarding other localities is available. The species grows in the primary forest of Arunachal Pradesh far from any human habitation. There are no immediate threats to its survival. However, only two patches of 10 – 15 individuals each were seen during this exploration work. According to the IUCN Red List Categories and Criteria (IUCN 2012), this species is currently evaluated as Data Deficient (DD).
Distribution
India: Arunachal Pradesh.
Ecology
Stream-side on open alpine slopes associated with Juncus spp., Saxifraga spp., Corydalis sp., Kobresia sp. and Geranium sp.
Morphology General Habit
Tufted perennial, herbs, 15 – 22 cm tall, glabrous throughout
Morphology Leaves
Basal leaves 6 – 18, fleshy; petiole 4 – 6 cm × 0.7 – 1 mm; blade longer than broad, oblong to elliptic-oblong, 9 – 27 × 6 – 13 mm, base cordate, apex rounded, margin with 4 – 7 crenulate lobes on each side, symmetrical, abaxial surface dark green, adaxial surface paler, veins not distinct
Morphology Reproductive morphology Flowers
Flowers 1.8 – 3 × 4 – 8 mm
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 8, longer than sepals; filament 1.8 – 2.5 mm long; anther c. 0.6 mm long
Morphology Reproductive morphology Flowers Calyx
Sepals 4, fleshy, erect, greenish yellow, oblong, 1 – 1.8 × 1 – 2 mm, not overlapping, margin entire, apex truncate, emarginate
Morphology Reproductive morphology Flowers Corolla
Petals 0
Morphology Reproductive morphology Flowers Gynoecium Carpels
Carpels 2; ovary semi-inferior; styles c. 1 mm long; disc 2 – 3.5 mm diam., unlobed or obscurely lobed
Morphology Reproductive morphology Fruits
Capsule 1.5 – 2 × 4 – 6 mm, apex subtruncate; lobes subequal, divergent; rostrum c. 0.5 mm long
Morphology Reproductive morphology Inflorescences
Inflorescence terminal; cymes 3 – 15-flowered, 1 – 2.5 cm long
Morphology Reproductive morphology Seeds
Seeds 15 – 30, ellipsoid, c. 1.2 × 0.4 mm, smooth, shiny, purplish-brown
Morphology Stem
Stem leaves 1 – 4, alternate, evenly-spaced; petiole 7 – 11 mm long; blade elliptic, 7 – 10 × 3 – 6 mm, base cuneate, apex rounded, margin 3 – 6 lobed, each axil bearing a new plantlet Flowering stems 1 – 3, suberect, 6 – 20 cm long; bracteal leaves oblong, ovate-elliptic, 5 – 10 × 4 – 6.5 mm, apex rounded, base truncate or rounded to cuneate, margins with 3 – 4 crenulate lobes; petiole 1 – 3 mm long
Note
Similar to Chrysosplenium forrestii and C. nudicaule but differs in a leaf blade longer than broad, stem and petiole glabrous, sepals erect not overlapping, and stamens longer than sepals. The specific epithet is derived from its geographical origin, namely Arunachal Pradesh.
Phenology
Flowering & fruiting July – September.
Type
Type: India, Arunachal Pradesh, West Siang, Renu II Pass beyond Yourlung (28°43.457'N, 93°54.673'E), 3438 m, 8 Sept. 2012, M. Bhaumik 29419 (holotype CAL; isotype ARUN).

Native to:

East Himalaya

Chrysosplenium arunachalense Bhaumik appears in other Kew resources:

First published in Kew Bull. 69(1)-9491: 1 (2014)

Accepted by

  • Govaerts, R., Nic Lughadha, E., Black, N., Turner, R. & Paton, A. (2021). The World Checklist of Vascular Plants, a continuously updated resource for exploring global plant diversity. https://doi.org/10.1038/s41597-021-00997-6 Scientific Data 8: 215.

Literature

Kew Bulletin

  • Clarke, C. B. (1878). Saxifragaceae. In: J. D. Hooker (ed.), Flora of British India. 2: 388 – 411. L. Reeve and Co., London.
  • Grierson, A. J. C. (1987). Saxifragaceae. In: A. J. C. Grierson & D. G. Long (eds), Flora of Bhutan 1 (3): 485 – 515. Royal Botanic Garden, Edinburgh.
  • Hara, H. (1957). Synopsis of the genus Chrysosplenium L. (Saxifragaceae). J. Fac. Sci. Univ. Tokyo, Sect. 3, Bot. 7: 1 – 90.
  • IUCN (2012). IUCN red List Categories and criteria Version 3.1. 2nd edn. Gland and Cambridge. (http://www.iucnredlist.org/technical-documents/categories-and-criteria/2012-categories-criteria).
  • Pan, J. T. & Ohba, H. (2001). ‘Chrysosplenium L.’ In: Z. H. Wu & P. H. Raven (eds), Flora of China 8: 346 – 358. Science Press, Beijing & Missouri Botanical Garden Press, St. Louis.
  • Pan, J. T. (1986). A study of the genus Chrysosplenium L. from China. Acta Phytotax. Sin. 24 (3): 203 – 214.
  • Pan, J. T., Ying, W. & Jinjun, L. (2003). ‘Chrysosplenium L.’ In: Z. H. Wu & P. H. Raven (eds), Flora of China Illustrations 8: 237 – 249. Science Press, Beijing & Missouri Botanical Garden Press, St. Louis.
  • Soltis, D. E., Nakazawa, M. T., Xiang Q. Y., Kawano, S., Murata, J., Wakabayashi, M. & Jetter, C. H. (2001). Phylogenetic relationship and evolution in Chrysosplenium (Saxifragaceae) based on matK sequence data. Amer. J. Bot. 88 (5): 883 – 893.CrossRefGoogle Scholar

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

Kew Bulletin
Kew Bulletin
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Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0