Disperis tysonii Bolus

Kurzweil, Hubert & Manning, John C., 2005, A synopsis of the genus Disperis Sw. (Orchidaceae), Adansonia (3) 27 (2), pp. 155-207 : 201

71. Disperis tysonii Bolus

J. Linn. Soc., Bot. 22: 79 (1885), as tysoni; Schlechter, Bull. Herb. Boissier, ser. 1, 6: 918 (1898); Rolfe, Fl. Cap. 5, 3: 298 (1913), as tysoni; J.C. Manning in H.P. Linder F Kurzweil, Orch. S. Afr.: 317 (1999). — Type: South Africa, Kokstad, Tyson 1079 (lecto-, K; isolecto-, SAM). Disperis bicolor Rolfe, Fl. Cap. 5, 3: 300 (1913). —

Type: South Africa, KwaZulu-Natal, Allison 4

(holo-, K). Disperis kermesina Rolfe, Fl. Cap. 5, 3: 297 (1913). —

Type: South Africa, KwaZulu-Natal, Allison 9

(holo-, K).

Plants to 400 mm. Leaves 4-5, alternate, lanceolate, 15-30 × 5-8 mm. Flowers (1-)5-20, in secund racemes, pink to magenta; median sepal ovate, 5-6 × 3-4 mm, deeply hooded, lateral sepals obovate, 6-8 × 2.5-3 mm; petals clawed, ovate, 4-6 × 2-2.5 mm; lip blade erect, ovate to triangular, appendage horizontally reflexed, linear, pubescent.

DISTRIBUTION AND PHENOLOGY. — South Africa (Eastern Cape, KwaZulu-Natal, Mpumalanga), Lesotho and Swaziland; on soils derived from sandstone or quartzite in montane and subalpine grassland from 1200 to 3050 m. Flowering mostly in February and March .