TABB. 71 & 72. 



Tribe Ophryde.e. 



Sub-tribe Dise.-e. 



Genus DiSA. 



Disa tenuis, Lindley, Gen. & Spec. Orch. (1838), p. 354.— 

 Herba erecta gracillima, 20-35 cm. alta ; folia radicalia 2-5, per 

 anthesin emarcida, erecta rigida, angfuste linearia, 7-20 cm. longa ; 

 scapus flexuosus rigidus, vaginis 3-6, membranaceis, arete 

 adpressis, setaceo-acuminatis vestitus ; spica tenuissima, dense 

 vel laxe multiflora, floribus adscendentibus ; bracteae membranaceae 

 lanceolato-ovatas setaceo-acuminatae, floribus longiores vel 

 breviores ; sepala lateralia patentia oblong-a obtusa, sub apice 

 mucronulata, mucrone plus minus elongatus, 0"4-0'7 cm. longa ; 

 sepalum impar adscendens vel erectum, galeato-concavum obtusum, 

 sub apice plus minus elongato-mucronulatum, lateralibus aequi- 

 long"um, calcare breve, patente vel adscendente, conico obtuso ; 

 petala erecta, apice incurva, oblonga obtusa, margine anteriore 

 serrulata, 0'2-0"3 cm. longa ; labellum porrectum vel deflexum, 

 lineare vel oblongum, obtusissimum vel acutum, margine integro 

 vel serrulato, 0"2-0*3cm. longum ; rostellum breve, apice integrum ; 

 anthera horizontalis, glandula unica, fere quadrata ; stigma 

 depressum marginatum ; ovarium 0"4-0"6 cm. longum. {^Ex exempli, 

 plur. vw. exsiccatisque.') D. leptostachys, Sotid., in Linncea, vol. 

 xix., (1847), p. 98. 



Hab. : South-western Region ; Cape Peninsula, among 

 shrubs, easiern slopes of Devil's Peak, alt. 420 met., fl. May, 

 A. A. Bodkin.' (No. 4874 in herb. Bolus.) Pappe ; nr. source of 

 Silvermine River, fl. July, Wolley-Dod, 1276 1 summit of Table 

 Mt., fl. March, R. Marloih! Kalk Bay Mt., fl. June, R. du Toil ! 

 (13509 in herb. Bolus.) Cape Flats, nr. Claremont, MacOwan^ 

 No. 2566, Bolus, R. Schlechter. Caledon Div. Houw Hoek Mt., alt. 

 240-600 met., fl. April, Boluz, 5352! R. Schlechler, 7550! 

 A. A. Bodkin! 



Plate 71. A. Fig. 1, flower, oblique view, from the front; 

 2, one of the side sepals, upper and lower surface ; 3, column, 

 with petals and lip, front view ; 4, ditto, near petal removed, side 

 view ; 5, 6, petals from different flowers ; 7, 8, 9, lips from diff"erent 



