Monopsis stellarioides (C.Presl) Urb.

Extinction risk predictions for the world's flowering plants to support their conservation (2024). Bachman, S.P., Brown, M.J.M., Leão, T.C.C., Lughadha, E.N., Walker, B.E. https://nph.onlinelibrary.wiley.com/doi/full/10.1111/nph.19592

Conservation

Predicted extinction risk: not threatened. Confidence: confident

Lobeliaceae, M. Thulin. Flora Zambesiaca 7:1. 1983

Morphology General Habit

Annual or perennial decumbent herb, often stoloniferous.

Morphology Stem

Stems 5–60 cm. long, usually rooting at the lower nodes, ribbed, with harsh retrorse pubescence.

Morphology Leaves

Leaves opposite, subsessile or shortly petiolate, linear to elliptic, up to 10–35 x 2–9 mm., acute or obtuse and mucronulate at the apex, rounded to attenuate at the base, almost glabrous or usually with fine but harsh pubescence on both surfaces, usually retrorse beneath and at margin, but with forwardly directed hairs above; margin incrassate, slightly revolute, crenate or serrate; midvein prominent beneath.

Morphology Reproductive morphology Flowers

Flowers not resupinate, solitary, axillary, scattered on the stem; pedicels 8–35 mm. long, pubescent with retrorse hairs; bracteoles at the base of the pedicel, 6–16 mm. long, resembling small leaves.

Morphology Reproductive morphology Flowers Hypanthium

Hypanthium obconical or obovoid, ± 10–nerved, pubescent.

Morphology Reproductive morphology Flowers Calyx

Calyx–lobes 2–6 mm. long, acute, entire, ± pubescent at the margins and on the outside, often reflexed in fruit.

Morphology Reproductive morphology Flowers Corolla

Corolla 6·5–11·5 mm. long, dirty yellow, dull pink, brownish purple or violet (but always ± violet when dried), with two bumps in the mouth of the tube, split on the lower side almost to the base, two–lipped with the upper lip 3–lobed and the lower lip consisting of two spathulate lobes united with the tube for 0·5–2·5 mm; short pubescent outside, often with longer hairs on the midveins of the lobes, glabrous or puberulous inside.

Morphology Reproductive morphology Flowers Androecium Stamens Filaments

Filaments free from corolla, linear, connate above, all pubescent at least on the inside above.

Morphology Reproductive morphology Flowers Androecium Stamens Anthers

Anther–tube ±1·6 mm. long, all anthers densely penicillate at the tip, otherwise glabrous.

Morphology Reproductive morphology Flowers Gynoecium Stigma

Stigma–lobes ± 0·6 mm. long.

Morphology Reproductive morphology Fruits

Capsule ± 10–nerved, obconical to oblong–obovoid, up to 10 mm. long, pubescent, dehiscing by valves up to 1–5 mm. long, or ±, indehiscent.

Morphology Reproductive morphology Seeds

Seeds broadly elliptic or subcircular in outline, compressed, ± 0·6 mm. long, distinctly and regularly reticulate, dark brown.