TAB. 48. 



Tribe Ophryde.^. 

 Sub-tribe Coeycie^. 

 Genus Pterygodium. 



Pterygodium platypetalum, Lindleij, Gen. & Sp. Orcli., p. 3G6 

 (1838). — Herba erecta gracilis glabra, 5-15 cm. alta ; caulis ssepius 

 flexuosus paucifoliosus ; folia 1-2, inferum lineari-lanceolatum acumi- 

 natum, 2-5-4 cm. longum, supermn minus ; flores 1-2, dissiti, circa 1-2 

 cm. longi, 1-8 cm. lati ; bracteas ovataB acuminata, floribus fere tequi- 

 longffi ; sepalum impar lanceolatum acuminatum concavum vel basin 

 versus fere saccatum ; sepala lateralia concava patentia ; petala fere 

 semi-orbicularia, margiue superiori biloba, inferiori rotundata valde 

 concava; labelli limbus sell^eformis apice augustatus acutus, appendice 

 carnosa in duos lobos erectos auriculaeformes apice colamn^e producta, 

 deinde subito postice retroflexa in processum subulatum acutum utroque 

 latere argute canaliculatum ; rostelli bracbia borizontalia ; stigmata 

 2; ovarium obovatum trigonum. [Ex exemjAl. plur. cic.) "Pt.ca.tho- 

 licum var. minor" sheet a in herb. Tbunberg ; Arethusa. alar is, 

 T/nmberif, Frodr. Plant. Cap. p. 3 (1794). 



Hab: South-western Region; Cape Colony: mountains of the 

 Cape Peninsula, rocky places, alt. 550 met., fl. Sept., Dr. Madotli; Du 

 Toits' Kloof, also near the Paarl, below 160 met., Sept.-Oct., Diege, 

 8280; near Caledon, on the Zwarteberg Mt., Sept., ZeyJwr, 3944!, 

 Bolus; near Wellington, fl. Aug., Miss M. E. Cumnmu/s (No. 16 in the 

 herb, of the Huguenot Seminary there). 



Plate 48. Fig. 1, flower, front view ; 2, one of the petals ; 3, odd 

 sepal, — all the foregoing magnified 2 diameters ; 4, column with lip, 

 the anterior part to the right ; 5, section through the appendage, at 

 the point marked (more highly magnified than in fig. 4) ; 6, column 

 with lip ; 7, ditto from behind ; 8, ditto, the appendage cut away to 

 show stigma, &c. ; 9, one of the pollinia, — all the latter variously 

 magnified ; 10, ovary, magnified 2 diameters. The letter a, indicates 

 the anther ; <j, the gland ; r, the rostellum ; s, the stigma. 



A slender delicate pale-coloured glabrous herb, 5-15 cm. high ; 

 stem thin, usually flexuous, distantly 1-2-leaved ; lower leaf 

 linear-lanceolate acuminate, 2-5-4 cm. long, the upper smaller ; 

 flowers 1-2, distant, about 1*2 cm. long, 1-8 cm. wide ; bracts 



