TAB. 52. 



Tribe Ophryde^. 



Sub-tribe DiSE^. 



Genus DiSA. 



Disa lacera, Swarfs, in Kongl. Vet. Acad. Handl., vol. xxi 

 (1800), p. 212.— Herba erecta gracillima glabra, 36-60 cm. alta ; 

 folia radicalia 6-12, erecta flexuosa rigida lineari-filiformia acuta, 

 basi ampliata, 15-30 cm. loriga ; scapus strictus vel subflexuosus, 

 vaginis 6-8, distantibus, arete amplectantibus, acuminatis mem- 

 branaceis vestitus ; racemus laxe 4-12fl., floribus patentibus ; 

 bracteae ovatae setaceo-acuminatae, saepius ovario breviores ; sepala 

 lateralia deflexa oblonga, acuta vel obtusa, 1"2-1'4 cm. longa ; 

 sepalum impar galeatum subacutum, lateralibus subaequilongum, 

 calcare patente conicc, 0'4-0-7 cm. longo ; petala supra medium 

 genuflexa, apice dilatata truncata, dentata vel bilobulata, basi 

 oblonga obtusa ; labellum decurvum ovato-oblongum lacerato- 

 dentatum vel lacerato-mullifidum, segmentis incurvis obtusis, 

 1'2-1"4 cm. longum ; rostellum erectum trifidum, segmentis 

 aequilongis, intermedio postposito ; glandula unica oblonga, apice 

 retusa ; ovarium 1-1-5 cm. longum. {Ex exempli, piur. viv. 

 exsiccatisque.) D, uenusta, Bolus, in Joiirn. Linn. Soc. xx. (1887), 

 p. 482 ; Orch. Cape Penins. (1888), /. 9 ; Herschelia uenusta, KrzL, 

 in Orch. Gen. &- Spec. i. (1900), p. 805. 



Habi : South - western Region ; Cape Peninsula, among 

 Restiones and shrubs on the Cape Flats, also sparingly on the 

 mountain-sides, up to 240 met., fl. Oct. -Nov., Burchell, 151, 747, 

 Ecklon, Zeyher, Pappe, Wallich, 118, R. Schlcchter, Bolus, 4566 ! 

 9339! nr. Caledon, Bowie, nr. Swellendam, Mnnd, Zeyher; nr. 

 George, alt. 180 met., Rehmann, 529, alt. 120-600 met., fl. Jan., 

 Bolus, 13514 ! Southern slopes, Outeniquabergen, Robinson Pass, 

 alt. 750 met., fl. Dec, Bolus, 12327! nr. Knysna, alt. 45 met., 

 R. Schlechler, 5928. South-eastern Region ; Van Staaden's R. 

 Mts., alt, 300-450 met., fl. Jan., Bobis, 1552! MacOwan, 1045; 

 nr. Uitenhage, Cooper, 1464 ; nr. Port Elizabeth, alt. 60 met., 

 fl. Dec, R. Hallack! (No. 6210 in herb. Bolus.) Stony hills nr. 

 Grahamstown, fl. Nov., alt. 660 met. , MacOwan. 



Plate 52. Fig. 1, lipx2 diams ; 2, column, with side petals, 

 front view, x 3 ; 3, column, side view, x 4 ; 4, apex of rostellum 



