TAB. 73. 



Tribe Ophkyde.4?. 



Sub-tribe DiSE^. 



Genus DiSA. 



Disa cylindrica, S^vnrtsy in KongL Vcfoisk. Acad. Handl.,' 

 vol. xxi. (1800), p. 218. — Herba erecta j^labra, 10-80 cm. alta ; 

 caulis strictus vel subflexuosus foliatus ; folia erecto-patentia 

 oblongo-lanceolata acuta, marg-inibus undulatis, 3-7 cm. longa ; 

 spica cylindrica dense vel sublaxe multiflora, 4-10 cm. longa, 

 1-2 cm. lata ; bracteae erectae herbacese lanceolatfe acutas, saepius 

 flores aequantes ; sepala lateralia oblique oblong-a patenti-recurva 

 obtusa sub apice apiculata, 0*6-0'8 cm. longa ; sepalum impar sub- 

 declinatum cucullatum, ore oblong-o, sub apice apiculatum, sepalis 

 lateralibus aequiloni^um, dorso basi in saccum brevem, 0*2 cm. 

 long-um, productum ; petala erecta, oblique lanceolato-subfalcata, 

 obtusa, basi antice lobulato-dilatata, 0*4 cm. longa ; labellum 

 patenti-deflexum, lineari-oblongum obtusum, 0*5 cm. long-um ; 

 rostellum erectum, lobis lateralibus brevissimis, intermedio multo 

 majore obtuso vel, ob apicem recurvum, specie bilobulatum ; 

 anthera supinata, poUiniis sphffiricis. {Ex exempli, pliir. viv. 

 exsiccatisque.) — Satyrium cyllndricum, Thunb. Prodr. Plant. Cap. 

 (1794), p. 5. 



Hab. : South-western Region ; Cape Colony : Stony and 

 sandy places on Table Mt. , alt. 7GO-1066 met., fl. Dec, Harvey^ 

 187; Bolus, 4537; Wolley Dod, 2112!; Lang-ebergen, near 

 Riversdale, alt. 457 met., fl. Dec, R. Schlcchtcr \ same locality, 

 Garcia's Pass, fl. Oct., Bolus, 13465 ; Outeniquabergen, above 

 Montagu Pass, alt. 1220 met., fl. Nov., R. Schlechter. 



Plate 73. Fig. 1, flower, front view ; 2, ditto, side view ; 

 3, one of the side sepals ; 4, odd sepal ; 5, petals, in situ ; 6, lip ; 

 7, 9, column, front view, the middle lobe of the rostellum reflexed 

 at the apex and appearing bilobed ; 8, ditto, side view ; 10, one of 

 the pollinia. 



An erect glabrous herb, 10-30 cm. high ; stem straight or sub- 

 flexuous leafy ; leaves erect-spreading oblong-lanceolate acute, 

 margins undulate, 8-7 cm. longf ; spike cylindrical, densely or 

 rather laxly many-flowered, 4-10 cm. long, 1-2 cm. in diameter ; 



