TAB. 60. 



Tribe Ophryde^. 



Sub-tribe DlSE^. 



Genus DiSA. 



Disa atricapilla. ^o/«-y, in Jonrn. Linn. Soc, xxi. (1882), p. B44. 

 — Herba erecta glabra, 10-30 cm. alta ; caulis strictus, basi 

 foliosus, vaginis 3-6, foliaceis vestitus ; folia erecto-patentia vel 

 erecto-incurva, lineari-lanceolata acuminata, marginibus involutis, 

 3-7 cm. longa ; racemus subcorymbosus, deinde elongatus, 3-13fl,, 

 floribus erectis vel adscendentibus ; bracteae herbaccEe, ovatae vel 

 lanceolatae, ovario breviores vel rarius Eequilongae ; sepala lateralia 

 patentia ovato-oblonga emarginata undulata carinata, apice con- 

 duplicata, 1'2-1'4 cm. longa ; sepalum impar anterius horizontale 

 cucuUatum obtusum, apicem versus compressum, sepalis lateralibus 

 subaequilongum ; petala decumbentia oblonga obtusissima, apice 

 incurva denticulata extus pubescentiaque, basi posteriore auricu- 

 lata, 0"8-0"9 cm. longa ; labellum porrectum subulatum acutum, 

 supra basin ampliatum dentatumque, petalis aequilongum ; 

 rostellum erectum 3fidum, lobo intermedio reflexo, lateralibus 

 breviore ; anthera valde resupinata, glandulis approximatis ; 

 ovarium strictum, cum pedicello 1-1 "5 cm. longum. {Ex exenip//. 

 pliir. viv. exsiccalisquc.) Orch. Cape Penins. (1888), /. 10. — 

 Penthea atricapilla, Harv., in Hook. Lond. Jonrn. Bot. (1842), 

 vol. \. p. 17. D. biualuata, Dw. & Schinz — var. B, atricapilla, 

 Schlfr., in Engl. Bot. Jahrb. vol. xxxi. (1902), p. 280. 



Hab. : South-western Region ; Cape Peninsula, moist places 

 on the Simonsberg and Muizenberg, alt. 390 met., fl Dec. -Jan., 

 Zeyhcr, 1579 ! Wolley-Dod, 583 ! Bolus, 4638 ! Prince Albert Div., 

 Zwartberg Pass, alt. 1530 met., fl. Dec, Bolus, 11644! nr. Ceres, 

 alt. 450 met., fl. Dec, Bolus! (Herb. Norm. Aust.-Afr., 409.) 



Plate 60. Fig. 1, flower, viewed from above, x 1^ diams. ; 

 2, ditto, side view, X 1^ ; 3, lip, x 2; 4, column, with petals, front 

 view, X 2 ; 5, ditto, side view, x 2 ; 6, pollinium — magnified. 



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

 at base, clothed with 3-6 leaf-like sheaths ; leaves erect-spreading or 

 erect-incurved, linear-lanceolate acuminate, the margins involute, 

 3-7 cm. long; raceme subcorymbose, finally elongate, 3-18fl., the 



