Ar rh 
2 ME nd 
MONOGRAPHIA POLYGALACEARUM. 143 
tica, subrotunda, subemarginata, quam alæ dimidio brevior. Semina pilis sericeis, 
brevibus adpressis, grisea; appendicula lata, alba, */, seminis æquantia. 
Obs. Species ab omnibus hujus subsectionis caule erecto, rigido, forma stigmatum 
atque aliis valde distincta. 
Habitat in planitie Paraguensi : Areguæ, leg. Balansa, n° 2187, Weddel, 
n° 31464, v. s. Hb. Mus. Paris. 
P. NEMORALIS, Bennet. 
Caulis erectus, ramosus, teres, subdichotomus, glabrescens, puberulus; folia 
ovato-lanceolata sublata, submagna, fere omnia verticillata. Racemi sublaxiflori ; 
sepala exteriora glabra, intermedium late et obtuse ellipticum; alæ late ellipticæ 
subspathulatæ ; petala superiora valde inæquilateralia, apice oblique rotundata, 
haud rhomboidalia ; crista valde laciniate incisa ; antheræ subsessiles; capsula ellip- 
tica alas subæquans. 
Journ. of Bot. 1879, p. 472. 
Tab. nostra. XX, fig. 23—24. 
À P. areguensi cui valde est affinis, alis latioribas, capsula haud alis duplo bre- 
vior sat distincta. 
Caulis subteres, dichotomus vel ramosus, subtenuis, vix puberulus, ramis 
strictis, ad 30-40 cm. longus, herbaceus. Folia verticillata, distantia ovato-lan- 
ceolata, acuta ut in P. Vogtii sed brevius pedicellata. Racemi terminales spici- 
formes, elongati, sublaxiflori cca 5 cm. longi subsessiles, bracteæ caducæ. Flores 
pulchre rosei. Sepala exteriora glabra (an semper ?), longitudine æqualia, superius 
multo latius, ellipticum, trinervatum, obtusum, inferiora duo oblonga, nec ovato- 
lanceolata. Alæ breviter unguiculatæ, ellipticæ, oblongæ, apice rotundatæ, 4 mm. 
longæ, roseæ, glabræ, nervo medio simplici, lateralibus extrinsecus simpliciter 
ramosis, quam corolla paulo longiores. Petala superiora late cultriformia, 1. e. 
duplo longiora quam lata, uno margine perpendiculari, subito sed breviter in 
unguiculum desinens, margine alio ab apice ulterioris versus unguem falcata, nec 
rhomboidalia nec ligularia per ‘/, cum tubo staminali connata. Carinæ crista multi- 
fida. Antheræ obovatæ, glabræ, subsessiles. Ovarium ellipticum glabram. Stylus eo 
brevior, subcurvatus. Stigma superius vaginiforme, in appendiculum erectum, 
