Disperis bolusiana Schltr. ex Bolus

Kurzweil, Hubert & Manning, John C., 2005, A synopsis of the genus Disperis Sw. (Orchidaceae), Adansonia (3) 27 (2), pp. 155-207 : 197

62. Disperis bolusiana Schltr. ex Bolus

Icon. Orchid. Austro-Afric. 1: t. 93 (1896); Schlechter, Bull. Herb. Boissier, ser. 1, 6: 940 (1898); Rolfe, Fl. Cap. 5, 3: 305 (1913); J . C . Manning in H . P . Linder F Kurzweil , Orch. S . Afr. : 309 (1999). — Type: South Africa, Stellenbosch , Lloyd ex Sanderson 937 (syn-, K); South Africa, Groene Kloof, Bolus 4337 (syn-, BOL); South Africa, Hopefield, Schlechter 5321 (syn-, B †) .

Disperis purpurata Rchb. f. var. parviflora Bolus, J. Linn. Soc., Bot. 22: 79 (1885), Icon. Orchid. Austro-Afric. 1: t. 93 (1896), as parvifolia , as syn. — Type: South Africa, Stellenbosch, Lloyd ex Sanderson 937 (syn-, K); South Africa, Groene Kloof, Bolus 4337 (syn-, BOL).

Plants pubescent, to 260 mm. Leaves 2(-3), alternate, ovate, 6-25 × 3-17 mm. Flower solitary, greenish-yellow; median sepal hooded, 4-7 × 3- 4 mm, lateral sepals lanceolate, 6-10 × 2.5-4 mm; petals oblong, 4-6 × 4-5 mm; lip not fused to gynostemium, blade forming cup together with base of appendage, appendage oblong ( Fig. 12C ).

DISTRIBUTION AND PHENOLOGY. — South Africa (Western Cape); in renosterveld over clay soils from 60 to 1200 m. Mainly flowering from September to October .

Figures

FIG. 12. — Flower and floral details in the “Bolusiana group”: A, B, Disperis cucullata Sw.: A, flower; B, lip and gynostemium; C, D. bolusiana Schltr. ex Bolus, lip; D, D. macowanii Bolus, lip; E, D. villosa (L.f.) Sw., lip. Drawn from alcohol material (sources unknown).