mibati 
MONOGRAPHIA POLYGALACEARUM. 231 
nodia fere duplo longiora. Racemi plus minus elongati, sublaxiflori 3-10 cm. 
longi, 6-7 mm. lati. Flores albi vel albicantes cca. 4-5 mm. longi. Bracteæ cadu- 
cæ, lineares. Pedicelli breves 0,5-0,8 mm. longi, glabri. Sepala exteriora longi- 
tudine subæqualia, superius majus triangulari-ovatum, inferiora duo ovata, acuta, 
glabra, dorso viridia, margine alba. Alæ multo majores, quam corolla longiores, 
albæ, anguste lanceolato-ellipticæ, utrinque sensim attenuatæ, acutæ, nervis tribus, 
simplicibus haud anastomosantibus, notatæ, glabræ. Petala superiora elliptica, 
breviter unguiculata subobtusa, carina cristata paulo breviora basi tantum cum tubo 
staminali connata. Carinæ limbus quam unguiculum longior, galeiformis, subito in 
unguiculum contractus ; crista paucilobata, lobis linearibus, sublongis. Antheræ 
glabræ in tubo staminali subsessiles, ovatæ. Ovarium ellipticum, glabrum haud 
emarginatum. Stylus suberectus, apice subgeniculatus. Stigma superius cristatum, 
vaginatum, inferius prominens papillosam. Capsula ovato-oblonga vel ovato ellip- 
tica 3,5 mm. longa, 4,5 mm. lata, obtusa, glabra, alis subbrevior. Semina cylin- 
drica, apice attenuata, atra, 2 mm. longa, pilis lanatis brevibus conspersa; arilli 
lobi ventrales albi, semine multoties breviores, elliptici, sabobtusi. 
Habitat in insulis Galopagensibus, Chatam, etc. 
Formæ ex insulis adjacentibus, vix diversæ ad Hookero atque Bennettio pro 
speciebus distinctis deseriptæ, vix habitu differrunt qua causa eas ad unam et ean- 
dem speciem reduco. 
P. MATHUSIANA, n. sp. 
Radix perpendicularis subsimplex ; caulis basi simplex, dein ramosus, ramis 
elongatis; folia in ramis conferta, linearia; racemi terminales sublaxiflori; flores 
parvi; sepala exteriora inæqualia; alæ lanceolato-ellipticæ, angustæ subacute ; 
petala superiora elongata, lanceolata, subacuta; crista multifida ; antheræ subses- 
siles ; crista stigmatis superioris sessilis haud stipitata; capsula oblonga, subemar- 
ginata vel haud emarginata, vel anguste elliptica, superfice minutissime tuberculata, 
alas æquans. 
Caulis basi teres, sublignosus, stigmatibus folioram dilapsorum leviter tubercu- 
latus, erectus, subsimplex vel ramosus, cum ramis ad 30 em. longus vel minus, 
glaber. Rami erecti, numerosi, evolutione racemorum elongatis 10-20 cm. longis, 
