TAB. 84. 



Tribe Ophrydeae. 



Sub-tribe Diseae. 

 Genus Disa. 



Disa nervosa, Lindley, Gen. d Sp. Oich,, p. 352 (1838). — (§ Cory- 

 phaea). — Herba glabra erecta, 1-2-pedalis ; caulis validus strictus 

 foliosus ; folia plura erecto-patentia lauceolata vel lineari-lanceolata 

 acuta euerva vel mnltinerva, 2-5-15 cm. longa, internodiis multo 

 longiora, in bracteas seusim abeuntia ; racemus ovatus oblongusve, 

 laxe vel dense multifloriis, 4-7 cm. diametro, flores paten tes plerique 

 bracteis venosis acuminatis paullo longiores ; sepala lateralia oblonga 

 obtusa apiculata subtorta, 1-2 cm. longa ; sepalum impar posticuiu 

 galeatum oblongum obtusum, calcare basi infuudibulari sensim atten- 

 uato filiformi limbo paullo breviore ; petala semi-exserta erecta fal- 

 cato-oblonga obtusa apiculata, 6-10 mill, longa ; labellum patens 

 liueare apicem versus ampliatum incrassatum, sepalis paullo longius ; 

 rostellum abbreviatum ; ovarium gracile rectum, 1-5-2-8 cm. lougum. 

 [Ex exempli, phir. viv.) — D. patula, Sonder, hi Linnaea, vol. xix, }). 94 

 (1847); D. steno^lossa, Bolus, in Joum. Linn. Soc. {Bot.), vol. xxv, 

 />. 173(1889). 



Hab : South-eastern Region ; Cape Colony : Featherstone's 

 Kloof near GrahamstowD, Dec, MacOican, No. 678!; south slope of 

 the Winterberg, Dec, Zepher : Pondoland, in various places, Dreye, 

 Flanaijan, Bolus: near Kokstad, alt. 1600 met., Dec, Tyson, No. 1599! 

 — Natal: near Howick, Febr., Fannin : Mooi R., alt. 1300 met., Nov., 

 Wood, No. 4077! — Trans-Vaal Republic: Mac-a-mac, Muddl; mts. 

 near Barberton, alt. 1200-1350 met., Febr., Galpin, No. 794 ! 



Plate 84. Fig. 1, flower ; 2, odd sepal; 3, 4, side sepals ; 5, lip ; 

 6, column, with one of the petals, tbe lip cut off in front ; 7, column, 

 oue of the glands removed ; 8, one of the pollinia, — all variously 

 magnified. 



A glabrous erect herb, 1-2 ft. high ; stem stout straight leafy ; 

 leaves several erect-spreading lanceolate or linear-lanceolate 

 acute nerveless or many-nerved, 2'5-lo cm. long, much longer 

 than the internodes, gradually passing into bracts ; raceme 

 ovate or oblong, loosely or densely many-fl., 4-7 cm. in diameter; 

 flowers spreading mostly longer than the veined acuminate 



