AFRICAN

ORCHIDS

Podangis rhipsalisocia (Rchb.f.) P.J.Cribb & Carlsward, Phytotaxa 71: 46 (2012).
Homotypic Synonyms:
Angraecum rhipsalisocium Rchb.f., Flora 48: 189 (1865).
Angorchis rhipsalisocia (Rchb.f.) Kuntze, Revis. Gen. Pl. 2: 651 (1891).
Listrostachys rhipsalisocia (Rchb.f.) Rolfe in D.Oliver & auct. suc. (eds.), Fl. Trop. Afr. 7: 158 (1897).
Aerangis rhipsalisocia (Rchb.f.) Schltr., Beih. Bot. Centralbl. 36(2): 123 (1918).
Rangaeris rhipsalisocia (Rchb.f.) Summerh. in J.Hutchinson & J.M.Dalziel, Fl. W. Trop. Afr. 2: 449 (1936).
Neowolffia rhipsalisocia (Rchb.f.) O.Gruss, Orchid. Atlas: 239 (2007).
Heterotypic Synonyms:
Listrostachys trachypus Kraenzl., Bot. Jahrb. Syst. 19: 253 (1894).
Listrostachys cordatiglandula De Wild., Bull. Jard. Bot. État Bruxelles 5: 184 (1914).
Angraecum cordatiglandulum De Wild., Bull. Jard. Bot. État Bruxelles 5: 184 (1916).
Aerangis cordatiglandula (De Wild.) Schltr., Beih. Bot. Centralbl. 36(2): 121 (1918).
Rangaeris trachypus (Kraenzl.) Guillaumin, Bull. Mus. Natl. Hist. Nat., II, 31: 118 (1959).
Description:
Stems short, to 4 cm long; roars stout, 4-5 mm in diameter.; Leaves four to six, borne in a fan, to 12 x 0.8 cm, bilaterally flattened, linear, acute, fleshy. Inflorescences arising below leaves, 10 cm long, 9- to 10-flowered. Flowers bell-shaped, not opening wide; white, turning apricot as they age, the spur greenish. Pedicel and ovary 10-12 mm long; bracts 2 mm lang. Sepals and petals all lanceolate, acute; dorsal sepal 9 x 3 mm; laterals 11 x 2 mm. Petals 8 x 2 mm. Lip entire, 10 mm long, 3 mm wide at the base, tapering rather abruptly in the apical half to an acute apex; spur to 15 mm long, tapering, the apical third hooked forwards. Column short and stout, 2 mm lang.
Habitat:
Evergreen forest, 100-200 m.
Cultivation:
This species can do well in cultivation, both mounted and in a pot, but can also be temperamental. If pot-grown, it needs a fairly coarse mix, which must not become too wet, or the roots rot. Grow it in moderate shade in intermediate temperatures, but it would probably be even better in warm temperatures. It flowers in spring and early summer (May and June)
Distribution:
W. Trop. Africa to Angola
References:
WCSP (2017). 'World Checklist of Selected Plant Families. 12.03.2017; http://apps.kew.org/wcsp/
Images:
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