AFRICAN

ORCHIDS

Angraecopsis tridens (Lindl.) Schltr., Beih. Bot. Centralbl. 36(2): 141 (1918).
Homotypic Synonyms:
Angraecum tridens Lindl., J. Proc. Linn. Soc., Bot. 6: 135 (1862).
Listrostachys tridens (Lindl.) Rchb.f., Flora 48: 190 (1865).
Epidorchis tridens (Lindl.) Kuntze, Revis. Gen. Pl. 2: 660 (1891).
Mystacidium tridens (Lindl.) Rolfe in D.Oliver & auct. suc. (eds.), Fl. Trop. Afr. 7: 174 (1897).
Heterotypic Synonyms:
Saccolabium occidentale Kraenzl., Bot. Jahrb. Syst. 17: 57 (1893).
Angraecum occidentale (Kraenzl.) Rolfe in D.Oliver & auct. suc. (eds.), Fl. Trop. Afr. 7: 142 (1897).
Angraecopsis occidentalis (Kraenzl.) Schltr., Beih. Bot. Centralbl. 36(2): 140 (1918).
Description:
Plant with short, erect stems, 1–5 cm long. Leaves 2–4 in 2 rows near apex of stem, linear or narrowly ligulate, somewhat curved, 2–12 cm long, 4–15 mm wide. Inflorescences slender, arising from the base of the stem, 4–8 cm long, few- to many flowered; bracts small, 1 mm long; pedicel with ovary shorter than the bracts. Flowers pale or clear green; dorsal sepal oval-lanceolate, acute, 1.5–2 mm long, 1–1.5 mm wide; lateral sepals scarcely widened in the apical half, 3.5–4 mm long; petals oblong-oblanceolate, obtuse, 2–2.7 mm long, 1.5 mm wide; lip 3-lobed near the middle, side lobes slightly longer than the mid-lobe, all lobes linear lanceolate in total 4 mm long; spur shorter than the lip, swollen at the apex, 2–3 mm long.
Habitat:
Epiphyte in montane rain forest; 1250–1500 m; flowering in September.
Cultivation:
As given for the genus, cool growing epiphyte.
Distribution:
Guinea, Bioko, SW. Cameroon
References:
Angraecoid Orchids Stewart, Hermans, Campbell 2006; WCSP (2017). 'World Checklist of Selected Plant Families. 14.02-2017; http://apps.kew.org/wcsp/
Images:
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