AFRICAN

ORCHIDS

Podangis dactyloceras (Rchb.f.) Schltr., Beih. Bot. Centralbl. 36(2): 82 (1918).
Homotypic Synonyms:
Listrostachys dactyloceras Rchb.f., Flora 48: 190 (1865).
Angorchis dactyloceras (Rchb.f.) Kuntze, Revis. Gen. Pl. 2: 651 (1891).
Heterotypic Synonyms:
Listrostachys forcipata Kraenzl., Bot. Jahrb. Syst. 19: 254 (1894).
Angraecum forcipatum (Kraenzl.) Engl. in H.G.A.Engler & O.Drude, Veg. Erde 9(II): 420 (1908).
Listrostachys saxicola Kraenzl., Bot. Jahrb. Syst. 48: 399 (1912).
Description:
A monopodial epiphyte with short stems. Plants sometimes form clumps and they produce very fine roots at the base of the stem. Pseudobulb/stem: Short. Leaves: Up to 4 in. (10 cm) long by 0.2-0.4 in. (0.5-1.0 cm) wide. Four to eight ascending leaves with overlapping bases are closely spaced and distichously arranged along the stem to form a fan-shaped growth. The fleshy leaves are linear, often curved, are bilaterally flattened to form a V-shaped cross section and have sharply pointed tips. Inflorescence: Up to 2 in. (5 cm) long. The flower spike arises along the leaf axil of the lower leaves or the leaf bases which remain on the lower part of the stem after the leaf has fallen. Each blossom is carried on a straight pedicellate ovary that is white and measures 0.8-1.0 in. (2.0-2.5 cm) long, with those at the base of the inflorescence being longer so that all the flowers are held at almost the same level. Flowers: A few up to 20 per inflorescence. The rather bell-shaped flowers are translucent white with a crystalline texture. The anther cap is dark green. in. ( cm) across. Sepals are oblong, bluntly pointed, and 0.2-0.3 in. (0.4-0.7 cm) long by 0.1-0.2 in. (0.3-0.4 cm) wide. The broadly egg-shaped, sharply pointed petals are 0.2 in. (0.4-0.5 cm) long by 0.1-0.2 in. (0.3-0.5 cm) wide. The lip is egg-shaped, sharply pointed, very concave, 0.2 in. (0.4-0.6 cm) long by 0.2 in. (0.4-0.5 cm) wide, and has a rather undulate margin. The spur at the base of the lip is 0.4 in. (0.9-1.1 cm) long. It tapers from a funnel-shaped mouth and then is enlarged into 2 lobules at its apex. The column is 0.04-0.08 in. (0.1-0.2 cm) long.
Habitat:
In evergreen rainforests often near waterfalls or rivers at altitudes of 750 to 1950 meters.
Cultivation:
Read more of Cultivation of Podangis dactyloceras (Rchb.f.) Schltr.,
Distribution:
W. Trop. Africa to Angola and Tanzania
References:
Orchids of East Africa Piers 1968; AOS Bulletin Vol 39 No 10 1970; AOS Bulletin Vol 48 No 2 1979; Flora of Tropical East Africa Orchidaceae Part 2 Cribb 1984; African Orchids in the Wild and Cultivation La Croix 1997; AOS Bulletin Vol 73 No 5 2004; Angraecoid Orchids Stewart, Hermans, Campbell 2006; AOS Bulletin Vol 77 No 11 2008; AOS Bulletin Vol 77 No 12 2008 WCSP (2017). 'World Checklist of Selected Plant Families. 12.03.2017; http://apps.kew.org/wcsp/
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Photograph ©Leo Klemm. Image used with kind permission. Photograph ©Leo Klemm. Image used with kind permission. Photograph ©Leo Klemm. Image used with kind permission. Photograph ©Leo Klemm. Image used with kind permission. Photograph ©Leo Klemm. Image used with kind permission. Photograph ©Leo Klemm. Image used with kind permission. Photograph ©Leo Klemm. Image used with kind permission.