366 OPHRYDEZX. 
eique adnatis. Appendix tubulosus, membranaceus, unilabiatus, valde 
obliquus ; labio antico producto integerrimo. 
CCVIII. PTERYGODIUM. 
Pterygodium. Swartz Act. Holm. 1800, 217. 
Perianthium fornicatum. Sepalum supremum et petala maxima indivisa 
concava in galeam sepius posticam agglutinata ; lateralia libera, pa- 
tentia, Labellum sessile, faciei columnz adnatum, basi appendice ma- 
gno (stigmate tertio sterili ?) linguzeformi, erecto, vel supra dorsum 
antherz inflexo, auctum. Anthera resupinata, loculis distantibus ab- 
breviatis stigmatis brachiis incurvis tortis adnatis; glandule nude. 
Stigma lineare, transversum, basi appendicis labelli inter illum et an- 
theram, utrinque in brachium productum.—— — Herbe radicibus testi- 
culatis, caule folioso, foliis oblongis basi vaginantibus, floribus solitariis 
aut racemosis. 
1. Prerycopium platypetalum. 
P. caule tenui 1-2-phyllo, foliis linearibus, floribus subsolitariis, ovario 
subrotundo, petalis latissimis truncatis extüs rotundatis, labello minimo 
trilobo lobis lateralibus rotundatis integerrimis intermedio majore acuto, 
appendice trilobo margine integro. 
Hab. ad Cap. B. Spei; in Mont. Dutoitskloof, Drege. (hab. s. sp.) 
Herba gracilis, digitalis vel palmaris. Flores P. catholico similes. Glan- 
dula parva nigra in centro utriusque lobi lateralis labelli. 
9. PrERYvGOoDIUM catholicum. Swartz l.c. Thunb. Fl. Cap. ed. Sch. 22. 
Brande's Journal, vol. 6, t. 1, f. 3. 
P. caule subdiphyllo, foliis oblongis obtusis, floribus geminis aut racemosis, 
petalis hinc rectiusculis inde rotundatis cordatis, labello minimo ovato 
acuto crispo, appendice acuminato utrinque unidentato supra dentes 
sulcato et serrato. 
Ophrys catholica. Linn. Sp. Pl. 1344. 
Ophrys alaris. Linn. Suppl. 404. 
Arethusa alaris. Thunb. Prodr. 3. 
Hab. ad Cap. B. Spei ; juxta et extra urbem Cap, et in Swartland, florens 
Aug. Sept., Thunberg ; Gnadenthal, Drege. (hab. s. sp.) 
3. Prerycopium acutifolium. ; 
P. caule subdiphyllo, foliis oblongis acutissimis, floribus racemosis, petalis 
hine rectiusculis inde rotundatis cordatis, labello minimo ovato acuto 
undulato, appendice acuminato integerrimo apice sulcato. 
Hab. ad Cap. B. Spei, Ecklon, Harvey ; Dutoitskloof, Drege. (hab. s. sp. 
A very distinct species resembling P. catholicum, from which it 1s m- 
mediately distinguished by its darker coloured flowers, taller stems, an 
acute leaves. 
4. Prervcopium alatum. Swartz l. c. Thunb. Fl. Cap. 24. Brande $ 
Journal, vol. 8, t. 3, f. 2. 
‘ m x b : " Y lis 
P. caule folioso, foliis canaliculatis acutis, floribus dens? racemosis, peta 
