TAB. 99. 



Tribe OphrydE/E. 

 Sub-tribe Corycie.4^. 

 Genus Pterygodium. 



Pterygodium leucanthum, Bolus in Trans. S. A. Philosoph. 

 Soc, vol. xvi , pari 2 (190:")), p. 150. — Herba erecta glabra, 

 15-35 cm. alta ; caulis gracilis subflexuosus, foliatus ; folia 4-5, 

 erecto-patentia, ovato-lanceolata, acuta, siccitate membranacea 

 venosaque ad 8 cm. longa ; racemus laxe 7-lOflorus ; bracteae 

 erectcB lanceolataj acuminatae floribus subaequilongae ; sepala 

 lateralia patentia cymbiformia acuta, margine anteriori obscure 

 unidentata, circ. 0-8 cm. longa ; sepalum impar erectum oblongum 

 obtusissimum, basi angustatum, cum petalis adhcerentibus con- 

 cavis cucullum suborbiculare efiformans, sepalis lateralibus aequi- 

 longum ; petala semi-orbicularia, basi modice gibbosa ; labellum 

 abbreviatum oblongum, latius quam longum, bilobulatum emar- 

 ginatumve lobulis rotundatis, sursum in appendicem erectum 

 oblongum carnosum, apicem versum sensim angustatum bifidum, 

 productum, lobulis deflexis, uncinate incurvis, incrassatis, sub- 

 divaricatis, obtusis discoloribus. [Ex exempli, plur. viv.) 



Hab. : South-eastern Region ; Cape Colony : Steep rocky 

 places on the Engcobo Mt., Fingoland, alt, 1.340 met., fl, Jan,, 

 Bolus, 8704 I and H. G. Flanagan ! ; also on the slopes of the 

 Kwenkwe Mt., near the Gatsberg, district Maclear, alt. 1(570 met,, 

 II. Jan., //. G. Flanagan ; Orange Free State : grassy slopes of 

 Mapedi's Peak, Witzie's Hoek, alt. 2500-2600 met,, fl. Feb, 

 J. Thode, 57b. 



Plate 99. Fig. 1, flower, front view; 2, ditto, back view; 

 3, one of the side sepals ; 4, odd sepal ; 5, one of the petals ; 

 6, column and lip, front view ; 7, ditto, side view ; 8, ditto, back 

 view ; 9, one of the poUinia — all variously magnified. 



A glabrous erect herb, 15-35 cm, high ; stem slender sub- 

 flexuous leafy ; leaves 4-5 erect spreading ovate-lanceolate, acute, 

 membranous and veined when dry, up to 8 cm. long ; raceme 

 axly 7-lOflowered ; bracts erect lanceolate acuminate, about as 

 long as the flowers ; lateral sepals spreading cymbiform acute, 

 obscurely unidentate on the anterior margin, about 0*8 cm, long ; 



