Angraecum pusillum Lindl., Companion Bot. Mag. 2: 205 (1837).
Homotypic Synonyms:
Angorchis pusilla (Lindl.) Kuntze, Revis. Gen. Pl. 2: 651 (1891).
Lesliegraecum pusillum (Lindl.) Szlach., Mytnik & Grochocka, Biodivers. Res. Conservation 29: 18 (2013).
Heterotypic Synonyms:
Angraecum burchellii Rchb.f., Flora 50: 117 (1867).
Epidorkis burchellii (Rchb.f.) Kuntze, Revis. Gen. Pl. 2: 660 (1891).
Lesliegraecum burchellii (Rchb.f.) Szlach., Mytnik & Grochocka, Biodivers. Res. Conservation 29: 17 (2013).
Description:
Dwarf epiphytic herb with stem up to 10 mm long. Leaves 4–6, distichous, forming a fan; lamina 5.5–12(16) cm × 2–5 mm, linear, articulated to a leaf base. Inflorescences several, arising from base of plant, 5–10 cm long, several- to many-flowered. Flowers very small, yellow-green or white. Pedicels and ovary c. 2.5 mm long. Sepals and petals all ovate, obtuse. Dorsal sepal 1.4–1.5 × 0.8 mm; lateral sepals 1.5 × 0.7 mm. Petals 1.2–1.5 × 0.5–0.6 mm. Lip 1–1.6 × 1.1–1.5 mm, ovate, very concave; spur 1.1 mm long, saccate. Column 0.5 mm long.
Habitat:
In forest and scrub in shady, seasonally moist forests at elevations around 1200 to 1500 meters.
Cultivation:
Seems fairly undemanding. Grow it potted in bark at intermediate temperatures, in moderate shade. It flowers in autumn (October).
Distribution:
Zimbabwe, South Africa; Swaziland
References:
Wild Orchids of Southern Africa Stewart, Linder, Schelpe & Hall 1982; Flora Zambesiaca Vol 11 Part 2 Pope 1998; African Orchids In the Wild and Cultivation La Croix 1997; Angraecoid Orchids Stewart, Hermans & Campbell 2006; Field Guide to the Orchids of Northern South Africa and Swaziland McMurty, Grobler, Grobler & Burns 2008; WCSP (2017). 'World Checklist of Selected Plant Families. 28.01-2017; http://apps.kew.org/wcsp/
Images:
Click on each image to see a larger version.

In culture
Angraecum pusillum 01
Photograph© Lourens Grobler. Image used with kind permission.