Malaxis welwitschii (Rchb.f.) ined..
Homotypic Synonyms:
Liparis welwitschii Rchb.f., Flora 48: 184 (1865).
Leptorkis welwitschii (Rchb.f.) Kuntze, Revis. Gen. Pl. 2: 671 (1891).
Lisowskia welwitschii (Rchb.f.) Marg., Richardiana 7: 50 (2007).
Heterotypic Synonyms:
Liparis weberbaueriana Kraenzl., Orchis 2: 128 (1908).
Microstylis stolzii Schltr., Bot. Jahrb. Syst. 53: 559 (1915).
Malaxis weberbaueriana (Kraenzl.) Summerh., Bull. Misc. Inform. Kew 1934: 208 (1934).
Microstylis atroruber H.Perrier, Notul. Syst. (Paris) 5: 233 (1936).
Microstylis francoisii H.Perrier, Notul. Syst. (Paris) 5: 234 (1936).
Malaxis stolzii (Schltr.) Summerh., Kew Bull. 2: 126 (1947 publ. 1948).
Malaxis atrorubra (H.Perrier) Summerh., Kew Bull. 8: 578 (1953 publ. 1954).
Malaxis francoisii (H.Perrier) Summerh., Kew Bull. 8: 578 (1953 publ. 1954).
Lisowskia weberbaueriana (Kraenzl.) Szlach., Fragm. Florist. Geobot., Suppl. 3: 121 (1995).
Plants 12 cm. tall; pseudobulbs, the most recent cauliform (5cm. x 2 mm.), covered with 2-3 sheaths 1 bearing 3-4 apical leaves; leaves oval-acute (2.5-3.5 x 1.4-1.6 cm.), attenuate-petiolate (petiole to 6-10 mm. long) and with 5 veins more projecting. Scape longer titan the leaves, to 6 cm. long, the peduncle longer than the rachis; rachis subdense, narrow (5 mm. wide generally) 15 flowered, flowers very small (3.5-4 mm. long with the pedicel) and greenish; bracts lanceolate-acute, equaling the pedicel or slightly longer. Median sepal oval-lanceolate (2.5 x 1 .2 mm.), obtuse and obscurely 3 veined; lateral sepals shorter (2 mm.). Petals linear (2.5 x 0.5 mm.). Labellum widely orbicular (2 mm. in diameter), auricles wide, obtuse and embracing the column, margins entire and the limbus thick and opaque; provided basally with 2 small punctiform calluses. Column very short, much thicker titan tall (0.4 mm.). Anther posterior, inserted below the apex of the column, small (a slight 0.4mm. wide), in a short, obtuse rostrum on the front edge. Rostelluns obviously sinuate medially, between the 2 points (auricles of the column) upright. Pedicel I.5 mm. long.
Terrestrials; in humid forests, from 1200m. alt.; flowering: February.

Bioko to W. Ethiopia and S. Trop. Africa, C. Madagascar

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Botanical Drawing / Herbarium
Photograph copyright Swiss Orchid Foundation at the Herbarium Jany Renz Image used with kind permission.