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This genus is accepted, and its native range is Pacific.
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
Perennial herbs, lianas or subshrubs, with simple hairs
Morphology Leaves
Leaves simple or sometimes irregularly pinnatisect
Morphology Reproductive morphology Inflorescences
Inflorescence thyrsoid or racemoid
Morphology Reproductive morphology Flowers Calyx
Calyx 5-lobed, becoming broader, often broadly campanulate in fruit, lobes equal or subequal (3/2) sometimes irregularly so, occasionally dentate-serrate
Morphology Reproductive morphology Flowers Corolla
Corolla 2-lipped, 4-lobed (1/3), white to purple, posterior lip moderately long, shorter than lower lip, shallowly hooded or almost flat, entire or emarginate, corolla-tube usually curved
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens equal or posterior pair slightly longer, not or only shortly exserted, thecae weakly distinct
Morphology Reproductive morphology Flowers Gynoecium Stigma
Stigma-lobes short, ± clavate, subequal or anterior broader
Morphology Reproductive morphology Fruits
Nutlets spreading and exserted from calyx at maturity, obliquely attached at base, fleshy, with slightly winged margins, rounded at apex, glabrous.
Note
2n = 64, 66.  About 34 species
Ecology
In mesic to moist forest
Distribution
Hawaii, with one species (P. tahitensis Nadeaud ) in Tahiti and one ( P. tongaensis H. St. John) in Tonga I.

Native to:

Hawaii, Tonga

Extinct in:

Society Is.

Phyllostegia Benth. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Soakai, E. [226], Tonga K000929045 holotype
Soakai, E. [226], Tonga K000929044 isotype

First published in Edwards's Bot. Reg. 15: t. 1292 (1830)

Accepted by

  • Govaerts, R. (2003). World Checklist of Selected Plant Families Database in ACCESS: 1-216203. The Board of Trustees of the Royal Botanic Gardens, Kew.

Literature

Lamiaceae Key Genus Fact Sheets

  • 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
  • Phyllostegia Benth., Edward's Bot. Reg. 15: t. 1292 (1830)
  • Wagner et al., Manual of the Flowering Plants of Hawaii 1: 810-826 (1990)
  • Wagner, Novon 9: 265-297 (1999).

Herbarium Catalogue Specimens
Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

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