TAB. 27. 



Tribe Opheyde-i:. 



Sub-tribe Dise^. 



Genus Disa. 



Disa sabulosa, ». sjk ( j Monadenia). — Herba glabra erecta, 8-20 

 cm. alta ; caulis rectus foliosus ; folia 4-5, infimum lineari-oblongiuu 

 acutum, superiora linearia acuminata erecto-patentia, citemarcescentia, 

 2-5 cm. longa, sensim in bracteas foliaceas abeuntia ; spica ovata vel 

 eylindrica, 3-7 cm. longa pluri- vel multiflora, bracteae erect^e incurvse 

 floribus subasquilongffi ; flores specie subnutantes, cum ovariis circa 2 

 cm. longi ; sepala lateralia oblonga obtusa deflesa ; sepalum impar 

 galeatum obovatum retusum deflexuni, calcare filiformi inflexo linibum 

 vel ovarium paullo superante ; petala subcarnosa, pro ratione gales 

 magna, sepalis subfequilonga, oblique oblonga biloba, lobis aequalibus 

 obtusissimis ; labellum lineare obtusum, petalis sepalisque brevius ; 

 rostellum erectuni, plicis lateralibus in se extus reversis. {Ex exempli, 

 plur. viv.) 



Hab : South-western Region ; Cape Colony : Kenilwortb, Cape 

 Peninsula, in sandy flats and open heathy places recently " burnt-ofl"," 

 alt, 20 meters, fl. Oct.-Nov., A. Bolus (No. 710i in my herb. ; Herb. 

 Norm. Aust.-Afr. 1374). 



Plate 27. Fig. 1, flower, with bract; 2, ditto, posterior view ; 3, 

 odd sepal ; 4, one of the side sepals ; 6, petals, — all the foregoing 

 magnified 3 diameters ; 7, column, with Hp ; 8, column, front view; 

 9, ditto, posterior %-iew ; 10, pollinarium, — all the latter variously 

 magnified. 



An erect glabrous herb, 8-20 cm. high ; stem straight leafy ; 

 leaves 4-5, mostly withered at the flowering period, the lowest 

 nnear-oblong acute, the succeeding linear acuminate erect- 

 spreading, 2-0 cm. long, passing into erect leaf-like bracts; spike 

 ovate or cylindrical, 3-7 cm. long, several- or many-flowered; 

 bracts erect incurved, about as long as the flowers ; flowers 

 somewhat nodding, together with the ovary about 2 cm. long ; 

 side sepals oblong obtuse deflexed ; odd sepal galeate obovate 

 retuse, bent downward, spur filiform curved, a little longer than 

 the limb, or than the ovary; petals subfleshy, large in proportion 

 to the galea, about as long as the side sepals, obhquely oblong 



