Pasaccardoa Kuntze

First published in Revis. Gen. Pl. 1: 354 (1891)
This genus is accepted
The native range of this genus is Tanzania to S. Tropical Africa.

Descriptions

Compositae, H. Beentje, C. Jeffrey & D.J.N. Hind. Flora of Tropical East Africa. 2005

Morphology General Habit
Annual or perennial herbs with leafy stems
Morphology Leaves
Leaves alternate, sessile or with a petioloid base, pinnately veined, serrulate
Morphology Reproductive morphology Inflorescences Capitulum
Capitula solitary, few, terminal on the inflorescence branches, erect, heterogamous, radiate; phyllaries multiseriate, imbricate; receptacle alveolate, alveoli with membranous teeth
Morphology Reproductive morphology Flowers Florets
Outer florets radiate, neuter; corolla of ray-florets with very short tube and broad 3-toothed ray; disc florets hermaphrodite; corolla shortly tubular below, abruptly dilated and deeply equally 5-lobed above; anthers strongly tailed, tails conspicuous, fringed; style branches short, obtuse, with a subapical dorsal fringe of hairs
Morphology Reproductive morphology Fruits
Achenes of ray florets sterile, flask-shaped, of disc florets cylindrical, prominently obtusely 10-ribbed; pappus of numerous unequal fimbriate scales, somewhat fewer and shorter in the ray florets.
[FTEA]

Compositae, G. V. Pope. Flora Zambesiaca 6:1. 1992

Morphology General Habit
Annual herbs, or suffrutices with annual stems from woody rootstocks.
Morphology General Indumentum
Vegetative indumentum of fine flagelliform hairs each consisting of an appressed filamentous terminal cell borne on a uniseriate many-celled stalk.
Morphology Leaves
Leaves alternate, narrowly oblanceolate to elliptic, somewhat discolorous, densely araneose-lanate on the under surface, gland-dotted.
Morphology Reproductive morphology Inflorescences Capitulum
Capitula heterogamous, radiate, few-many, solitary and terminal on branches sometimes also subsessile along branches, subtended by leaf-like bracts.
Morphology Reproductive morphology Inflorescences Bracts Phyllaries
Phyllaries numerous, many-seriate, araneose-lanate to puberulous, at least the outer subulate-aristate with stiff squarrose or recurved apices, or lamina straight and pungent.
Morphology Reproductive morphology Flowers Receptacle
Receptacle deeply alveolate, paleae absent.
Morphology Reproductive morphology Flowers Florets
Disk-florets deep-red or creamy-white, hermaphrodite and actinomorphic. Ray-florets neuter, stamens and style absent or rudimentary, corollas deep-red or creamy-white; ray erect, 3-fid, inner lip wanting; ovary rudimentary, pappus of many narrow scales.
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anther apical appendages narrowly triangular, theca bases sagittate with tapering-acute fimbriate or ciliolate tails.
Morphology Reproductive morphology Flowers Gynoecium Style
Style deeply 2-fid, apices subobtuse with a subdistal fringe of hairs.
Morphology Reproductive morphology Fruits
Achenes subcylindric, 10-ribbed with numerous stiff white hairs; pappus several-seriate of numerous spreading narrowly lanceolate scales.
[FZ]

Sources

  • Flora Zambesiaca

    • Flora Zambesiaca
    • http://creativecommons.org/licenses/by-nc-sa/3.0
  • Flora of Tropical East Africa

    • Flora of Tropical East Africa
    • http://creativecommons.org/licenses/by-nc-sa/3.0
  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 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 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0