812 BULLETIN DE L'HERBIER BOISSIER. (13) 



7. Pterygodium caffrum Sw. 



Herba erecta, glabra, 8-20 cm. alta; caule stricto basi foliato, medio vagi- 

 nato; foliis 2-4 ovatis vel ovato-lanceolatis erecto-patentibus vel sub- 

 erectis acutis vel breviter apiculatis, inferioribus 3-6 cm. longis, media 

 1,5-2,5 cm. latis, superioribus sensira. in vaginas erectas acutas submem- 

 branaceas caulem densius vaginantibus, abeuntibus; racemo erecto 3-mul- 

 tifloro, oblongo vel rarius cylindrico, ad 10 cm. longo, ad 3 cm. dia- 

 metro; bracteis membranaceis vel submembranaceis lanceolatis vel 

 ovato-lanceolatis acutis, floribus subsequilongis, inferioribus rarius flores 

 paulo excedentibus ; floribus inter majores in genere sulphureis erectis 

 vel erecto patentibus; sepalis lateralibus divaricatis, ovato-lanceolatis 

 acutis, basi subsaccato concavis, 0,9 cm. longis, supra basin 0,5 cm. latis, 

 dorsali suberecto oblongo-lanceolato aculo, lateralibus sequilongo; petalis 

 suberectis oblique suborbiculari-rhombeis obtusis margine anteriore 

 valde ampliatis, concavis, sepalorum longitudine, medio fere 0,7 cm. 

 latis; labello amplo deflexo bipartito, c. 0,6 cm. longo, supra basin 

 1,5 cm. lato, lobis subrotundis, appendice erecto carnoso apice excavato 

 marginibus incurvis, medio linea incrassata donato, c. 0,7 cm. longo; 

 ovario cylindrico 1,2-1,5 cm. longo. 



Pterygodium caffrum Sw., in Act. Holm. (1800), p. 218; Thbg., Fl. Cap. 

 (1823), p. 23; Ldl., Gen. Spec. Orch. (1839), p. 367; Bol., Orcn., Cape 

 Penins. (1888), p. 186. 



Ophrys caffra Thbg., Prodr. PI. cap. (1794), p. 2. 



Habitat in Africa australi : 



Loco incerto : Masson; R. Brown (1801); Mund (Oct. 1817) Harvey, 

 n» 146. 



In regione austro-occidentali : In dunis arenosis planitiei capensis 

 prope Wynberg, alt. 50-100 ped. — Eklon et Zeyher, H. Bolus, n° 3936 

 (Oct. 1880); R. Schlechter, n° 1556 (Sept. 1892); In clivis montis Tabu- 

 laris, alt infra 500 ped. — Zeyher, H. Bolus, n° 3936 (Nov. 1880), Bergius 

 (Sept. 1815); In clivis meridionalibus montis Muizenberg, alt. 800 ped., 

 Nov. 1883 — H. Bolus (Herb. Norm. Austro-Afr., n<> 176); In monte 

 Diaboli — Eklon, Pappe, Bunbury ; In arenosis ad sinum Simonsbay. — 

 Wright; In dunis arenosis prope Tygerberg, alt. c. 100 ped., Sept. 1879. 

 H. Bolus, n° 3936. In collibus lapidosis inter Paarl et Pont, Sept., all. 

 infra 1000 ped. — Drège; In collibus prope Darling, alt. c. 100 ped., Sept. 

 1894. — R. Schlechter, n. 5341, D 1 ' A. Penther, P. Krook; In planitie 

 prope George — Bowie; Prope Knysna, Nov. 1842 — Wallich. 



P. Pentherianum muss als die nächst Verwandte der vorliegenden Art 



