TAB. 63. 



Tribe Ophryde.^. 



Sub-tribe DiSE.*;. 



Genus DiSA. 



DIsa uniflora, Bcrgiiis Descr. Plant, e Cap. B. Spci. (17G7), 

 348, /. 4, /". 7. — Herba robusta g'labra, decumbens vel rarius suberecta 

 25-60 cm. alta ; caulis strictus herbaceus, foliosus ; folia 5-7, 

 erecto-patentia decurva lineari-lanceolata acuta vel acuminata, 

 8-15 cm. longa, 1-1-5 cm. lata, sensim in vag"inas 2-4 herbaceas 

 transeuntia ; racemus laxe 1-3 florus, floribus in genere maximis, 

 speciossissimis, erectis ; bracte^e lanceolatai acuminata) erecta; 

 ovario long-iores ; sepala lateralia petaloidea colorata ovato-ob- 

 long-a acuminata patentia, 4-6 cm. longa, medio 2-8 cm. lata, 

 sepalo impari suberecto galeato ovato vel suborbiculari acuto, 

 basi in calcar infundibuliforme rectum dependens, 0*8-1 -S cm. 

 longum productum ; petala resupinata falcato-oblonga obtusa, 

 marginibus posterioribus sub anthera inflexis, 2*5 cm. longa ; 

 labellum lineari-lanceolatum acuminatum deflexum, 2-2*5 cm. 

 longum ; rostellum erectum arcuato-incurvum, brachiis g"landuliferis 

 divaricatis abbreviatis lobo intermedio resupinato ; anthera resu- 

 pinato linearis apiculata, connectivo angusto loculis paullulo 

 longiore ; stigma umbonatum trilobum. i^Ex exempli, pliir. vivi's 

 exsiccalisquc.)—D. grand/flora, Linn.fil. Snppl. (1781), />. 406. 



Hab : South-western Region ; Cape Colony : margins of 

 streams, which frequently become dry in the summer ; on Table 

 Mt. near Cape Town, mostly on the summit, alt. from about BB5 

 to 1000 met., fl. Jan. -March, many collectors ; also in similar 

 spots on Winterhoek's Mountain, near Tulbagh, alt. 610-914 

 met. Drege ; Mts. about Du Toit's Kloof, alt. 900-1219 met. 

 Drbge ; Cederberg- Mts., near Clanwilliam, up to 1525 met. 

 Leipoldt, 602! 



Plate 63. Fig-. 1, odd sepal, side view ; 2, flower, sepals and lip 

 removed, side view ; 3, ditto, back view ; 4, 4, petals ; 5, column, 

 front view ; 6, rostellum with stigma ; 7, pollinarium. 



A robust glabrous decumbent, or more rarely suberect, herb 

 25-60 cm. high ; stem straight herbaceous leafy ; leaves 5-7, erect- 

 spreading- decurved linear-lanceolate acute or acuminate, 8-15 cm. 



