(8) RUDOLF SCHLECHTER. MONOGRAPHIE DER DISPEEÏDE/E. 807 



prope Wynberg, ait. 50-100 ped. — Eklon et Zeyher; Ad pedem mon- 

 tium prope Capetown, ait. infra 400 ped., Sept. — Zeyher, Pappe, Eklon, 

 Bolus, n° 3930,, Th. Kässner, R. Schlechter, n° 1356; In solo argillaceo 

 prope Stellenbosch, alt. c. 3000 ped., Sept. — Miss Lloyd, Miss Farnham 

 (Herb. Norm. Austr.-Afr., n° 337); Hangklip, Jul. 1821 — Mund; In solo 

 argillaceo prope Tulbagh, Aug. 1892, alt. c. 450 ped. — R. Schlechter^ 

 Kl. Drakensteen juxta flumen Bergrivier, Nov. Dec, alt. infra 500 ped. — 

 ürege; Ad pedem montis Piquetberg, alt. 600 ped., Sept. 1894 — R. 

 Schlechter, n° 5186; In monte prope Liefde, inter Breederivier et Bokke- 

 veld, alt. 1000-2000 ped., Oct. — Drège; In collibus, Yoormansbosch, 

 prope Swellendam — Zeyler. 



Von den anderen Arten der Sektion Eu-Pterygodium ist P. alatum 

 durch die schwarze Färbung zu erkennen, welche es im getrockneten; 

 Zustande annimmt; ausserdem aber habituell durch die vielen Wurzel- 

 blätter. Die schwefelgelben Blüten stehen in wenigblü Liger, lockerer 

 Traube. 



3. Pterygodium platypetalum Ldl. 



Herba erecta, pusilla, glaberrima, 5-15 cm. alta; caule tenui sub- 

 flexuoso, bifoliato, apice 1-2 floro; folio inferiore lanceolato vel lineari- 

 lanceolato acuminato, erecto, 2-4 cm. longo, 0,6-0,8 cm. lato, internodium 

 subsequante vel paulo superante, superiore vaginiformi; floribus vix 

 inter majores in genere, erectis, sulphureis, bracteis late ovatis acumi- 

 natis, valde concavis, submembranaceis, floribus subsequilongis vel paulo 

 brevioribus; sepalis lateralibus divaricatis ovato-lanceolatis acuminatis, 

 concavis, 0,8 cm. longis, infra medium c. 0,4 cm. latis, sepalo dorsali 

 erecto, lanceolato acuto vel acuminato concavo, basi subsaccato, 0,9-1 cm. 

 longo; petalis erectis circuitu suborbicularibus apice obscure bilobis, 

 lobo posteriore abbreviato dentiformi; anteriore multo majore rotundato, 

 medio valde concavis, vel potius subsaccatis. e basi ad apicem lobi ante- 

 rioris 1,1-1.2 cm. metientibus; labelli limbo sellseformi apicem versus 

 angustato dependente, acutissimo, appendice carnoso erecto margine 

 medio utrinque in lobum erectum auriculi formem producto, supra 

 medium subito reflexo, marginibus deflexis, lanceolato, apice elongato 

 subacuto vix adscendente; rostelli brachiis divaricatis; ovario oblongo 

 vel ovoideo, 0,6 cm. longo. 



Pterygodium platypetalum Ldl., Gen. Spec. Orch. (1838), p. 366; Bol., 

 Icon. Orch. Afr. austr. (1893), t. 48; Orch. Cape Penins. (1888), p. 184. 

 Arethusa alaris Thbg., Prodr. PI. Cap. (1794), p. 3. 



