Neobolusia stolzii Schltr.

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: low confidence

Orchidaceae, V. S. Summerhayes. Flora of Tropical East Africa. 1968

Morphology General Habit

Plant 15–45 cm. high.

Morphology Leaves

Leaves 2–4, the lowest sheathing, the middle ones lanceolate or oblong-lanceolate, to 9 cm. long and 1.2 cm. broad, the uppermost similar to the bracts.

Morphology Reproductive morphology Inflorescences

Inflorescence up to 8-flowered, to 16 cm. long; bracts lanceolate, the lower ones longer than the flowers.

Morphology Reproductive morphology Flowers

Flowers with greenish sepals and whitish or purplish petals and lip, spreading; ovary, 7–10 mm. long.

Morphology Reproductive morphology Flowers Calyx

Sepals broadly lanceolate, acuminate, the laterals oblique 6–7.5 mm. long.

Morphology Reproductive morphology Flowers Corolla

Petals obliquely ovate, acute, ± 4.5 mm. long, the margins ciliate.

Morphology Reproductive morphology Flowers Labellum

Lip spathulate-oblong, apiculate, 6.5–7 mm. long, ± 4 mm. broad in front, with a large raised hairy callus in the lower centre.

Morphology Reproductive morphology Flowers Column

Column 2.5- 3 mm. tall.

Figures

Fig. 3.

Habitat

Upland grassland; 1850–2600 m.

Distribution

T7

Orchidaceae, I. la Croix and P.J. Cribb. Flora Zambesiaca 11:1. 1995

Morphology General Habit

Terrestrial herb 18–65 cm tall; tubers c. 10 mm long, spherical or ellipsoid.

Morphology Leaves

Leaves 3–6, the largest near the base, 5–13.5 × 0.5–1.4 cm, lanceolate, acute, decreasing in size up the stem, the upper ones bract-like.

Morphology Reproductive morphology Inflorescences

Inflorescence laxly 2–12-flowered; ovary 5–9 mm long; bracts leaf-like, 10–17 × 3.5–5 mm, acute.

Morphology Reproductive morphology Flowers Perianth

Sepals and petals yellow-green, lip dull maroon with a white or greenish margin.

Morphology Reproductive morphology Flowers Calyx

Sepals 6–11 × 2.5–3.5 mm, lanceolate to ovate, acuminate; dorsal sepal projecting over the column; lateral sepals spreading, oblique, slightly longer than the dorsal sepal.

Morphology Reproductive morphology Flowers Corolla

Petals 4–9 × 2.2–5 mm, lanceolate, acuminate, ciliolate.

Morphology Reproductive morphology Flowers Labellum

Lip 5–9 × 3–7 mm, oblong-spathulate, apiculate, entire, convex with a large hairy callus in the lower centre, margins glabrous.

Morphology Reproductive morphology Flowers Column

Column 2.5–3 mm long.