Pityrodia R.Br.

First published in Prodr. Fl. Nov. Holland.: 513 (1810)
This genus is accepted
The native range of this genus is Australia.

Descriptions

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 or quadrangular in cross-section, indumentum of branched hairs or lepidote scales
Morphology Leaves
Leaves opposite or in whorls of 3-4
Morphology Reproductive morphology Inflorescences
Inflorescence thyrsoid, with flowers either on leafy branches (hence appearing axillary) and part-inflorescences usually few-flowered or terminal, leafy to bracteate, botryoidal or paniculate
Morphology Reproductive morphology Inflorescences Bracteoles
Bracteoles 2
Morphology Reproductive morphology Flowers
Flowers zygomorphic
Morphology Reproductive morphology Flowers Calyx
Calyx 5-lobed
Morphology Reproductive morphology Flowers Corolla
Corolla white, pale mauve, red, deep pink, purple-blue, occasionally pale yellow, tubular, distinctly 2-lipped, 5-lobed (2/3), posterior lip erect to extended forward, 2-lobed, or unequally 5-lobed in distal half, anterior lip usually spreading, 3-lobed,
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 4, inserted near mid-point of corolla tube, included or shortly exserted
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anthers dorsifixed, thecae free in lower half
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary hairy, 2-lobed or ± unlobed
Morphology Reproductive morphology Flowers Gynoecium Style
Style rarely displaced laterally with stigma-lobes distinct
Morphology Reproductive morphology Fruits
Fruit separating into two 2-locular mericarps.
Note
About 45 species.  Pityrodia appears to be polyphyletic and parts of it may need to be united with Chloanthes R.BR. and Hemiphora F. Muell.
Distribution
Endemic to Australia
[LKGF]

Sources

  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2022. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2022 World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0
  • Kew Names and Taxonomic Backbone

    • The International Plant Names Index and World Checklist of Vascular Plants 2022. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2022 International Plant Names Index and World Checklist of Vascular Plants. 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