82 MONOGRAPHIA POLYGALACEARUM. 
P. OPACA, n. sp. 
Folia lanceolato-linearia, puberula, haud tenuissima ; stipulæ aculeiformes vix 
longiores quam latæ; sepala inæqualia, ciliata; alæ triangulares obtusæ, mar- 
gine haud ciliatæ ; petala superiora apice dilatata; carina alis longior; pars elata 
filamentorum staminalium (sub antheris) latior quam longa. 
Sello 454. 
A. P. dichotoma, stipulis spineis duplo brevioribus, foliis pubescentibus haud 
translucidis, floribus fere duplo brevioribus distincta. 
Tab. nostra. XVI, fig. 26. 
Frutex. Folia concoloria opaca, pubescentia, lanceolato linearia ”"/,,, *‘{,, 
*°/, mm. Spinæ stipulares 0,3 mm. longæ vix longiores quam crassæ. Racemi 
terminales, laxiflori, pyramidales. Flores pedicellati, 6-7 mm. longi, pedicellis sub- 
breviores. Pedicelli tenues, erecto-patuli. (Alæ apice purpurascentes ejusdem formæ 
ut in P. dichotoma. Petala alba, duo superiora apice aurantiaca purpureo obdueta, 
2 lateralia minuta rubra : Sello). Capsula alas superans subquadrangularis, emar- 
ginata 7 mm. lata, 6 mm. longa. Semina subpyramidalia (4 facies). Caruncula 
terminalis secundum dorsum seminis per ‘/, descendens. 
Habitat in Brasilia : Sello 454. 
P. FORMOSA, A.-W. Bennet. 
Frutex, ramis erectis. Folia lanceolata, linearia, acuminata, tenuia, petiolata, 
flores insignes. Alæ glabræ ovales. Petala superiora alas superantia. Capsula alis 
brevior, elliptica. 
Bennet in Torr. Bot. Club XVI. I (43) 19. Britton Enum. PI. Rusby. 
Frutex. Caulis glaber vel puberulus, lignosus, ramosus, ramis erectis. Folia lan- 
ceolata, linearia, acuminata, tenuia, petiolata, 10 cm./22 mm. 7 cm./12 mm. 
‘"/,, mm., herbacea nec diaphana sed subopaca. Racemi terminales vel axillares, 
laxi, 2-5 cm. longi vel majores (?). Flores insignes, pedicellati ; pedicello 6-10 mm. 
