Molluginaceae Bartl.

First published in Beitr. Bot. [Bartling & H. L. Wendland] 2: 158. 1825 [Dec 1825] (1825)nom. cons.
This family is accepted

Descriptions

Ghazanfar, S. A., Edmondson, J. R. (Eds). (2016). Flora of Iraq, Volume 5, Part 1: Elatinaceae to Sphenocleaceae. Kew Publishing

Morphology General Habit
Mostly herbs, often ± succulent
Morphology Leaves
Leaves simple, alternate, opposite or whorled, sometimes with membranous stipules
Morphology Reproductive morphology Inflorescences
Inflorescences cymose, axillary or terminal-Flowers regular, usually hermaphrodite
Morphology Reproductive morphology Flowers Calyx
Calyx of usually 5 free sepals
Morphology Reproductive morphology Flowers Corolla
Petals absent
Morphology Reproductive morphology Flowers Androecium Staminodes
Staminodes sometimes present, then often petaloid
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 5-many, hypogynous
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary superior, of 2–5 usually united carpels; loculi as many as carpels; ovules 1-many per loculus, axile or rarely basal-Fruits usually capsular, loculicidal-Seeds subreniform, embryo usually curved.
[FIQ]

Milliken, W., Klitgard, B. and Baracat, A. (2009 onwards), Neotropikey - Interactive key and information resources for flowering plants of the Neotropics. http://creativecommons.org/licenses/by/3.0

Morphology General Habit
Herbs, rarely woody plants, often creeping and well branched
Morphology Leaves
Leaves alternate, opposite or verticillate, with or without stipules, sessile to shortly petiolate, sometimes linear, venation inconspicuous, blades entire, herbaceous to slightly fleshy
Morphology Reproductive morphology Inflorescences
Inflorescences in small cymes to axillary fascicles, flowers sometimes solitary
Morphology Reproductive morphology Flowers
Flowers hermaphrodite, symmetry radial, hypogynous, relatively small, white, cream or greenish, calyx (4-)5- merous, lobes free to fused at base, corolla absent, sometimes replaced by staminodes; stamens (2-)4-5, rarely more, free or united at base, anthers dehiscing longitudinally; nectar disk present, surrounding the gynoecium; ovary superior, 2-5-locular, axile placentation, (1-)many ovulate, ovules pendulous
Morphology Reproductive morphology Fruits
Fruit capsular or achene, seeds black or brown with shiny coat, embryo curved around perisperm, endosperm absent.
Distribution
Out of its 10-13 genera and approx. 120 species, this family is represented in the Neotropics by 3 genera and 3 species:  Mollugo L., Glinus L. and Glischrothamnus Pilg. All are found in dry, open Neotropical environments. Mollugoverticillata L. and Glinusradiatus (Ruiz & Pav.) Rohrb. are weedy and commonly found in disturbed habitats. Mollugo L. - throughout the Neotropics, only one species, M. verticillata. Glinus L. - a single weedy, widespread species, G. radiatus. Glischrothamnus Pilg. - a narrow endemic, monotypic genus from the Brazilian drylands, G.ulei Pilg.
Diagnostic
Key differences from similar families: May be confused with Galium L. and other herbaceousRubiaceae because of its general habit, but has superiorovary and free petals (Rubiaceae has inferior ovary and gamopetalous corolla). It can be confused with Aizoaceae and Portulacaceae, but is less succulent and has smaller, less colourful flowers than those. Leaves often opposite. Stamens usually 5. Ovary pluri-ovulate. Seed with shiny seed -coat. Distinguishing characters (always present): Generally herbaceous plants with flowers lacking corolla. Superiorovary. Relatively small flowers. Key to genera of Neotropical Molluginaceae 1. Woody plants ... Glischrothamnus ulei 1. Herbaceous plants ... 2 2. Leaves narrow, linear to linearlanceolate... Mollugo verticillata 2. Leaves spathulate to obovate... Glinus radiatus
Note
Molluginaceae is more diverse in Africa, and some species of Mollugo are used as herbs in cooking. Number of genera: This family is represented in the Neotropics by 3 genera and 3 species:  Mollugo L., Glinus L., and Glischrothamnus Pilg., Together with the Aizoaceae, Cactaceae, Portulacaceae and Stegnospermataceae, the Molluginaceae is currently placed within order Caryophyllales (APGII, 2003). However, it lacks the betalain pigments and has rather modest, small flowers.
[NTK]

Molluginaceae, Hutchinson and Dalziel. Flora of West Tropical Africa 1:1. 1954

Morphology General Habit
Herbs
Morphology Leaves
Leaves alternate or opposite; stipules none or very small and soon falling off
Morphology Reproductive morphology Flowers
Flowers actinomorphic, hermaphrodite, solitary or cymose, usually small and inconspicuous
Morphology Reproductive morphology Flowers Calyx
Sepals free or united at the base only, imbricate
Morphology Reproductive morphology Flowers Corolla
Petals small or absent
Morphology Reproductive morphology Flowers Androecium
Stamens hypogynous or slightly perigynous, definite or many; filaments free to connate at the base; anthers 2-celled, opening lengthwise
Morphology Reproductive morphology Flowers Gynoecium
Ovary syncarpous (except Gisekia), usually several-celled; styles or stigmas as many as the cells; ovules curved or inverted
Morphology Reproductive morphology Fruits
Fruit dry, dehiscing into the cells or by a transverse slit, rarely indehiscent, calyx usually persistent
Morphology Reproductive morphology Seeds
Seeds with endosperm, the embryo curved
[FWTA]

Molluginaceae, M. L. Gonçalves. Flora Zambesiaca 4. 1978

Morphology Reproductive morphology Flowers Sterile Parts
Staminodes often present, sometimes petaloid
Morphology Reproductive morphology Flowers Androecium
Stamens 3–?, hypogynous, sometimes in pairs or fascicles, alternate with the perianth-segments when definite in number; filaments often enlarged below; anthers 2-locular, opening by longitudinal slits
Morphology Reproductive morphology Flowers Gynoecium
Ovary superior, 2–5-carpellate, apocarpous (in Gisekia) or syncarpous; loculi and stigmas as many as carpels; ovules 1, few or many per loculus; placentation axile or basal
Morphology Reproductive morphology Fruits
Fruit of achenes, mericarps or loculicidal capsules
Morphology Reproductive morphology Seeds
Seeds usually subreniform or triangular in outline, sometimes strophiolate; embryo usually curved
Morphology General Habit
Succulent or subsucculent annual or perennial herbs or subshrubs, glabrous or covered with simple or stellate hairs (in Glinus lotoides)
Morphology Leaves
Leaves simple, alternate, opposite or verticillate, sometimes crowded, with or without stipules
Morphology Reproductive morphology Inflorescences
Inflorescences solitary, cymose, loosely dichasial to umbelliform or glomerate, axillary or terminal
Morphology Reproductive morphology Flowers
Flowers more or less actinomorphic, hermaphrodite, rarely unisexual (in Gisekia africana)
Morphology Reproductive morphology Flowers Perianth
Perianth-segments 5, free, imbricate, herbaceous, persistent
[FZ]

Sources

  • Flora Zambesiaca

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

    • Ghazanfar, S. A., Edmondson, J. R. (Eds). (2013-2019). Flora of Iraq, Volumes 5.1, 5.2 and 6.0. Kew Publishing
    • http://creativecommons.org/licenses/by-nc-sa/3.0
  • Flora of West Tropical Africa

    • Flora of West Tropical Africa
    • http://creativecommons.org/licenses/by-nc-sa/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
  • Neotropikey

    • Milliken, W., Klitgard, B. and Baracat, A. (2009 onwards), Neotropikey - Interactive key and information resources for flowering plants of the Neotropics.
    • http://creativecommons.org/licenses/by-nc-sa/3.0