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This genus is accepted, and its native range is Australia.
A specimen from Kew's Herbarium

[LKGF]

Harley, R.M. et al. (2004). Labiatae, in The Families and Genera of Vascular Plants (K. Kubitzki, ed. in chief) VI: 167-275. Springer-Verlag, Berlin, Heidelberg, New York.

Morphology General Habit
Shrubs or subshrubs
Morphology Branches
Branches ± round in cross-section
Morphology General Indumentum
Indumentum densely lanate with hairs branched
Morphology Leaves
Leaves sessile or petiolate, decussate or whorled, sometimes almost alternate
Morphology Reproductive morphology Inflorescences
Inflorescence terminal, cymose, with part-inflorescences pedunculate or sessile, pyramidal or spike-like panicles, or the cymes sessile, congested to form decussate or whorled clusters, usually many-flowered
Morphology Reproductive morphology Inflorescences Bracteoles
Bracteoles 2
Morphology Reproductive morphology Flowers
Flowers ± actinomorphic, sessile or pedicellate
Morphology Reproductive morphology Flowers Calyx
Calyx 5-lobed
Morphology Reproductive morphology Flowers Corolla
Corolla white, pale mauve, purplish blue, mostly 5-lobed in distal half, with lobes equal, tube expanded in throat
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens mostly 5, inserted in corolla-tube, exserted or scarcely so
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anthers dorsifixed, free and divergent in lower half
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary ± unlobed
Morphology Reproductive morphology Flowers Gynoecium Style
Style with stigma-lobes well-developed
Morphology Reproductive morphology Fruits
Fruit dry, globose, indehiscent, 1- or 2-seeded.
Distribution
About 26 species, all endemic to Australia.

[LKGF]

Harley, R.M. et al. (2004). Labiatae, in The Families and Genera of Vascular Plants (K. Kubitzki, ed. in chief) VI: 167-275. Springer-Verlag, Berlin, Heidelberg, New York.

Morphology General Habit
Shrubs
Morphology Branches
Branches ± round in cross-section
Morphology General Indumentum
Indumentum densely lanate with hairs branched
Morphology Leaves
Leaves sessile, decussate
Morphology Reproductive morphology Inflorescences
Inflorescence terminal, thyrsoid, subglobose and capitate or both capitate and spike-like (elongate), solitary or in corymbose panicles, with part-inflorescences shortly pedunculate or sessile, congested to form decussate clusters, many-flowered
Morphology Reproductive morphology Inflorescences Bracteoles
Bracteoles 2
Morphology Reproductive morphology Flowers
Flowers ± actinomorphic, subsessile
Morphology Reproductive morphology Flowers Calyx
Calyx deeply 4-lobed, densely hairy on outer surface
Morphology Reproductive morphology Flowers Corolla
Corolla white, 4-lobed in distal half, lobes almost equal, tube cylindrical
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 4, inserted in corolla-tube, scarcely exserted, anthers dorsifixed, free and divergent in lower half
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary ± unlobed
Morphology Reproductive morphology Flowers Gynoecium Style
Style with stigma-lobes short
Morphology Reproductive morphology Fruits
Fruit dry, ± globose, indehiscent, usually 1-seeded.
Distribution
Two species, endemic to Australia.

Native to:

New South Wales, Northern Territory, Queensland, South Australia, Western Australia

Dicrastylis Drumm. ex Harv. appears in other Kew resources:

First published in Hooker's J. Bot. Kew Gard. Misc. 7: 56 (1855)

Accepted by

  • Conn, B.J., Henwood , M.J. & Streiber, N. (2011). Synopsis of the tribe Chloantheae and new nomenclatural combinations in Pityrodia s.lat. (Lamiaceae) Australian Systematic Botany 24: 1-9.
  • Govaerts, R. (2003). World Checklist of Selected Plant Families Database in ACCESS: 1-216203. The Board of Trustees of the Royal Botanic Gardens, Kew.
  • Rye, B.L. (2007). A review of the sectional classification of Dicrastylis (Lamiaceae: Chloantheae) and four new arid-zone species from Western Australia Nuytsia 17: 289-324.

Literature

Lamiaceae Key Genus Fact Sheets

  • Dicrastylis J.Drumm. ex Harv., Hook. J. Bot. Kew Misc. 7: 56 (1855)
  • Harley RM, Atkins S, Budantsev AL, Cantino PD, Conn BJ, Grayer R, Harley MM, de Kok RPJ, Krestovskaja T, Morales R, Paton AJ, Ryding O, and Upson T. 2004. Labiatae, in The Families and Genera of Vascular Plants (K. Kubitzki, ed. in chief) VI: 167-275. Sp
  • J. Adelaide Bot. Gard. 14: 85-92(1991).
  • Lachnocephalus Turcz., Bull. Soc. Imp. Naturalistes Moscou 22(2): 36 (1849).
  • Mallophora Endl., Stirp. Herb. Hügel.: 18 (1838).
  • Munir, J. Adelaide Bot. Gard. 1: 407-689 (1991)

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 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

Lamiaceae Key Genus Fact Sheets
Nina Davies, Gemma Bramley and Don Kirkup, Royal Botanic Gardens, Kew
http://creativecommons.org/licenses/by/3.0