TAB. 55. 



Tribe Ophryde.£. 



Sub-tribe DiSE.i. 



Genus DiSA. 



Disa obtusa< Lindley, Gen. c^ Sp. Orch. fl838), p. 355. — 

 Herba erecta glabra, 10-iO cm. alta ; caulis strictus foliatus ; folia 

 suberecta. linearia acuta, basi dilatata vaginantia, 3-13 cm. long"a ; 

 spica cylindrica, dense multiflora, 6-22 cm. long^a ; bracteee ovatee 

 vel lanceolatce, acuminatae herbacece. inferiores Acres superantes, 

 superiores breviores ; sepala lateralia patenti-deflexa oblonga 

 obtusa, 0"4-0'6 cm. longa ; sepalum impar suberectum galeatum, 

 ore subrotundato, dorso in saccum obtusum, vix 0*2 cm. longum, 

 productum ; petala adscendentia oblong-a, medio genuflexa, basi 

 anteriore in lobum rotundatum producta, 0"l-0*2 cm. longa ; 

 labellum deflexum lineare, obtusum vel subacutum, O-3-O-o cm. 

 longum ; rostellum erectum bifidum, brachiis glanduliferis sub- 

 divaricatis ; anthera resupinata ; ovarium 0"4-0"7 cm longum. 

 [Ex exempli, pliir. viv. exsiccatisque). Orch. Cape Peniiis. 

 (1888), /. 3i. 



Hab.' South-western Region ; nr. Stellenbosch, Jonkersh(5ek 

 Mts., fl. Nov., i?. Marloth, 4363! Caledon Div. , Grabouw, 

 alt. 240 met., fl. Oct., F. Guthrie ! nr. Sir Lowry's Pass, alt. 360 

 met,, fl. Oct., Bolus! nr. Elim, alt. 420 met., fl. Oct., A. A. 

 Bodkin! Cape Peninsula, in shallow moist valleys, alt. 240-720 

 met., fl. Nov. -Dec, Sieber, Wright, Ecklon, Zeyher, Bolus, 4549 I 

 (Herb. Norm. Aust.-Afr.. 336). fl. Jan.,i?. Schlechter, 162, JVolley- 

 Dod, 3212 ! 



Plate 55. Fig. 1, flower, side view, x 4 diams ; 2, odd sepal ; 

 3, side sepals ; 4, petals ; 5, lip — all x 6 ; 6, column, side view ; 7, 

 ditto, front view— magnified. 



An erect glabrous herb, 10-40 cm. high ; stem straight leafy ; 

 leaves suberect linear acute, dilated and sheathing at base. 3-13 

 cm. long ; spike cylindrical, densely many-flowered, 6-22 cm. long ; 

 bracts ovate or lanceolate, acuminate herbaceous, the lower 

 exceeding the flowers, the upper smaller ; lateral sepals spreading 

 deflexed oblong obtuse, 0*4-0'6 cm. long ; odd sepal suberect 

 galeate, the mouth somewhat orbicular, produced dorsally at the 



