TABB. 68 & 69. 



Tribe Ophryde.'E. 



Sub-tribe DiSE.E. 



Genus DiSA. 



Disa chrysostachya, Sivarts, in KongL Vet. Acad. Handl., 

 vol. xxi. (1800),/. 211. — Herba erecta, saepius validus, glabra, ad 

 1"25 met. alta, saepius 60-80 cm. alta ; caulis strictus foliatus ; 

 folia radicalia 3-5 e g-emma distincta, vel omnia caulina, erecto- 

 patentia oblonga, ovata, ovato-lanceolata vel lineari-lanceolata, 

 acuta vel obtusa, 8-20 cm. longa, superiora in vaginas arete 

 amplectentes sensim abeuntia ; spica cylindrica, dense multiflora, 

 floribus erectis, 18-35 cm. longa, bracte^e caneato-ovatae, acumi- 

 natce vel acutae, apice reflexce, membranaceae, floribus cequilongae 

 vel breviores ; sepala lateralia patentia ovato-oblonga obtusa, 

 0'5-0-7 cm. longa ; sepalum impar erectum galeatum obtusum, 

 dorso infra medium calcaratum, calcare dependente obovato, inflato 

 vel subcompresso, obtusissimo, limbo cequilongo ; petala erecta, 

 apice rostello inflexa, oblique obovata, subfalcata obtusa, 0"4-0"5 

 cm. longa ; labellum patenti-deflexum lineare, apicem versus paullo 

 dilatatum, petalis cequilongum ; rostellum erectum, profunde 

 31obum, lobis jequilongis, lateralibus subacutis ; anthera erecta 

 vel suberecta, obtusa, glandulis pyriformibus ; stigma ultra ovarium 

 conspicue exstans, rostello multo brevius ; ovarium 0*8-1 cm. 

 longum. [Ex exempli, phir.viv. exsiccatisque.) D. gracilis, Lindl., 

 Gen. CST' Spec. Orch. (1838), p. 348. 



Hab.: South-western Region; Cape Colony: George Div., 

 damp places near George-Bowie, R. Schlechter ; near Welgelegen, 

 alt. 600-900 met., fl. Nov., Drege ; grassy hills near Knysna, alt. 

 45 met., fl. Nov., R. Schlechter, 5917. South-eastern Region; 

 Cape Colony: nr. Port Elizabeth, alt. 30 met., fl. Oct. -Dec, 

 Florence Paterson! R. Hallack! (Herb. Norm. Aust.-Afr., 949.) 

 Nr. Somerset East, fl. Jan., W. Tuck! (No. 1815 in herb. Bolus.) 

 Griqualand East, nr. Clydesdale, alt. 1050 met., fl. Jan., W. Tyson, 

 2904 ! Summit of the Eland's Berg, alt. 1800 met., fl. Feb., 

 W. C. Scully, 409 '—Natal : nr. Fields Hill. Sanderson, 601 ; 

 nr. Nottingham Road, alt. 1500 met.,/. M. Wood, 1020; 

 Drakensbergen, nr. Oliviers-Hoek, alt. 1500 met., fl. Dec, Allison. 

 — Trans- Vaal: Little Lomati Valley, nr. Barberton, alt. 1080 met.. 



