TAB. 51. 



Tribe Ophryde^. 



Sub-tribe DlSE^. 



Genus DiSA. 



Disa barbata, Swarfs, in Kongl. Vet. Acad. HandL, vol. xxi. 

 (1800),/'. 212.— Herba erecta gracilis glabra, 30-50 cm. alta ; folia 

 3-6, radicalia erecta rigida, anguste linearia vel filiformia, 15-30 cm. 

 longa ; scapus strictus vel subflexuosus, vaginis 5-6 distantibus, 

 arete appressis, acuminatis membranaceis vestitus ; racemus laxe 

 l-4fl. (saepius 2-3fl.), floribus patentibus ; bractese ovatse, acutae 

 vel acuminatae, membranaceae, ovario breviores ; sepala lateralia 

 porrecto-patentia oblonga subacuta, l"8-2 cm. longa ; sepalum 

 impar galeatum, ore ovato, acute vel acuminato, lateralibus aequi- 

 longum, calcare stricto vel adscendente, conico, 0'4-0"6 cm. longo ; 

 petala ascendentia oblonga, medio genuflexa, parte superiore 

 ampliata, inaequaliter dentato-lobulata, basi anteriore rotundato- 

 lobulata, 0'6-0-7 cm. longa ; labellum decurvum ovatum lacerato- 

 multifidum, segmentis inflexis, 1*6-1'8 cm. longum ; anthera 

 horizontalis, glandula unica triangulari, basi emarginata ; 

 rostellum erectum odentatum, dentibus acutis, intermedio post- 

 posito ; ovarium 1"2-1'5 cm. longum. {Ex exempli, plur. viv. 

 exsiccatisqtie.) Orch. Cape Penins. (1888), /. 8. — Orchis barbata, 

 Linn. /, Suppl. (1781), p. 399. Satyrium barbatum, T/iund., 

 Prodr. PL Cap., p. 5. Herschelia barbata, Bol., in Jonrii. Linn. 

 Soc. BoL, xix. (1882), p. 236. 



Hab. : South-western Region ; Cape Peninsula, among 

 Restionaceae and shrubs, Cape Flats, between Cape Town and 

 Wynberg, alt. 15-30 met., fl. Sept.-Oct., Zeyher, 1567! Bolus, 

 4857 ! Herb. Norm. Aust.-Afr., 166! R. Schlechter. 



Plate 51. Fig. 1, odd sepal (seen from below), side sepals, 

 upper and under side, and lip x 1^ diams. ; 2, petal ; 3, column, 

 side view ; 4, ditto, front view — all X 6 diams. ; 5, 6, pollinarium 

 — magnified. 



An erect slender glabrous herb, 30-50 cm. high ; leaves 3-6, 

 radical erect rigid, narrow-linear or filiform, 15-30 cm. long; scape 

 straight or subflexuose, clothed with 5-6 distant, closely appressed, 

 acuminate membranous sheaths ; raceme laxly l-4fl. (usually 2-3fl.), 



