Eulophia tanganyikensis Rolfe

Orchidaceae, I. la Croix & P.J. Cribb. Flora Zambesiaca 11:2. 1998

Morphology General Habit

Terrestrial herb 40–60 cm tall.

Vegetative Multiplication Pseudobulbs

Perennating organs pseudobulbous, 8–15 mm long, 10–20 mm wide, conical, forming a chain.

Morphology Leaves

Leaves 3–4, erect, to 50 cm × 2–9 mm, linear, plicate, well developed at flowering time.

Morphology Reproductive morphology Inflorescences

Inflorescence laxly few- to about 10-flowered; scape almost covered with 3–4 sheaths.

Morphology Reproductive morphology Flowers Pedicel and Ovary

Ovary and pedicel 13–22 mm long.

Morphology Reproductive morphology Inflorescences Bracts

Bracts 5–20 mm long, linear-lanceolate, acuminate.

Morphology Reproductive morphology Flowers

Flowers semi-erect, not opening wide; sepals green shaded with light brown; petals white; lip white with faint mauve lines and red-purple or white papillae on the mid-lobe.

Morphology Reproductive morphology Flowers Calyx

Sepals 12–17 × 1.5–3 mm, linear, acute, the lateral sepals joined at the base to the column foot.

Morphology Reproductive morphology Flowers Corolla

Petals 10–15 × 2.5–5 mm, oblong, acute, lying over column.

Morphology Reproductive morphology Flowers Labellum

Lip 15–17 × 10–13 mm, 3-lobed; side lobes erect, elliptic, rounded in front; mid-lobe 6 × 6 mm, oblong-obovate, obtuse or emarginate, the edge very undulate; callus of 3 fleshy ridges in basal half and 5–7 rows of papillae on mid-lobe.

Morphology Reproductive morphology Flowers Spur

Spur 3.5–5 mm, cylindrical, parallel to ovary but sometimes turned down at apex.

Morphology Reproductive morphology Flowers Column

Column 5–6 mm long; foot 3 mm long.

Morphology Reproductive morphology Fruits

Capsule pendent, c. 24 mm long.

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

Morphology General Habit

A terrestrial herb 40–60 cm. tall.

Vegetative Multiplication Pseudobulbs

Perennating organs pseudobulbous, conical, 8–15 mm. long, 10–20 mm. diameter, on a rhizome 3.5–4 mm. diameter; roots slender 1.5 mm. diameter.

Morphology Leaves

Leaves 3–4, plicate, erect, linear, acute, up to 40 cm. long, 4 mm. wide.

Morphology Reproductive morphology Inflorescences

Inflorescence laxly few–10-flowered; peduncle 3–4 mm. diameter, bearing 3–4 sheaths in lower two-thirds; rhachis 9–12 cm. long; bracts linear-lanceolate, acuminate, 5–20 mm. long.

Morphology Reproductive morphology Flowers

Flowers not opening widely; sepals green shaded light brown; petals white; lip white faintly veined with purple and with white or red papillae; pedicel and ovary 13–21 mm. long.

Morphology Reproductive morphology Flowers Calyx

Dorsal sepal linear, acute, 13–17 mm. long, 3 mm. wide; lateral sepals similar.

Morphology Reproductive morphology Flowers Corolla

Petals parallel to column, oblong, acute, 13–15 mm. long, 5 mm. wide.

Morphology Reproductive morphology Flowers Labellum

Lip 3-lobed, 15–17 mm. long, 13 mm. wide; side lobes erect, elliptic, rounded in front; mid-lobe oblong-obovate, obtuse or emarginate, with an undulate margin; callus of 3 short fleshy ridges with 5–7 rows of papillae in front on to middle of mid-lobe.

Morphology Reproductive morphology Flowers Spur

Spur parallel to ovary but pointing down at apex, cylindrical, 3.5–5 mm. long.

Morphology Reproductive morphology Flowers Column

Column 5–6 mm. long; foot 3 mm. long.

Morphology Reproductive morphology Fruits

Fruit pendent, ± 24 mm. long.

Habitat

In swamps and wet grassland; 1100–1700 m.

Distribution

T4

General Description

A terrestrial herb 40–60 cm. tall. Perennating organs pseudobulbous, conical, 8–15 mm. long, 10–20 mm. diameter, on a rhizome 3.5–4 mm. diameter; roots slender 1.5 mm. diameter. Leaves 3–4, plicate, erect, linear, acute, up to 40 cm. long, 4 mm. wide. Inflorescence laxly few–10-flowered; peduncle 3–4 mm. diameter, bearing 3–4 sheaths in lower two-thirds; rhachis 9–12 cm. long; bracts linear-lanceolate, acuminate, 5–20 mm. long. Flowers not opening widely; sepals green shaded light brown; petals white; lip white faintly veined with purple and with white or red papillae; pedicel and ovary 13–21 mm. long. Dorsal sepal linear, acute, 13–17 mm. long, 3 mm. wide; lateral sepals similar. Petals parallel to column, oblong, acute, 13–15 mm. long, 5 mm. wide. Lip 3-lobed, 15–17 mm. long, 13 mm. wide; side lobes erect, elliptic, rounded in front; mid-lobe oblong-obovate, obtuse or emarginate, with an undulate margin; callus of 3 short fleshy ridges with 5–7 rows of papillae in front on to middle of mid-lobe; spur parallel to ovary but pointing down at apex, cylindrical, 3.5–5 mm. long. Column 5–6 mm. long; foot 3 mm. long. Fruit pendent, ± 24 mm. long.

Terrestrial herb 40–60 cm tall.Perennating organs pseudobulbous, 8–15 mm long, 10–20 mm wide, conical, forming a chain.Leaves 3–4, erect, to 50 cm × 2–9 mm, linear, plicate, well developed at flowering time.Inflorescence laxly few- to about 10-flowered; scape almost covered with 3–4 sheaths.Ovary and pedicel 13–22 mm long; bracts 5–20 mm long, linear-lanceolate, acuminate.Flowers semi-erect, not opening wide; sepals green shaded with light brown; petals white; lip white with faint mauve lines and red-purple or white papillae on the mid-lobe.Sepals 12–17 × 1.5–3 mm, linear, acute, the lateral sepals joined at the base to the column foot.Petals 10–15 × 2.5–5 mm, oblong, acute, lying over column.Lip 15–17 × 10–13 mm, 3-lobed; side lobes erect, elliptic, rounded in front; mid-lobe 6 × 6 mm, oblong-obovate, obtuse or emarginate, the edge very undulate; callus of 3 fleshy ridges in basal half and 5–7 rows of papillae on mid-lobe.Spur 3.5–5 mm, cylindrical, parallel to ovary but sometimes turned down at apex.Column 5–6 mm long; foot 3 mm long.Capsule pendent, c. 24 mm long.

Habitat

In swamps and wet grassland; 1100–1700 m.

Swampy grassland and dambos