620 ON A NEW SPECIES OF EUDEMA. 
possesses spathulate, thick leaves which are hairy at the 
margins, and very small flowers, with petals shorter than the 
calyx. The fruit, like that of the other species, E. rupestris, 
is supposed to have a dissepiment, so deeply notched towards 
the summit, that only a slight plate remains at the bottom 
of the cell The new species which I have observed is 
somewhat differently organised, in that the dissepiment is 
widely fenestrated towards the lower part, and the thin plate 
which remains is situated at the summit of the cell. 
An exactly similar structure prevails in the ovoid fructifi- 
cation of another plant of this same genus, which exactly 
resembles Eudema nubigena in its aspect, and the form and 
ciliation of the foliage, the shape of the fruit and number of 
its seeds; but this same plant, which I have seen in Sir W. 
Hooker's herbarium, differs again from Humboldt's species, 
because its petals are decidedly longer than the calyx. 
May it not be supposed that the flowers of Eudema nubigena, 
described by the above named author, were not fully ex- 
panded? I incline to think so and to consider Sir W. 
Hooker's plant as the Eudema nubigena. However, this 
may be, whether distinct or not, the dubious plant in ques- 
tion serves to confirm the structure of fructification in my 
Eudema grandiflora, and to render still more desirable a new 
examination of E. rupestris and nubigena. 
Eupema, Humb. et Bonpl. Pl. Equin. t. 2, p. 133. 
Char. Gen.— Calyx tetraphyllus, foliolis basi subzequalibus 
laxis. Petala 4, æqualia, calycem superantia! vel eodem 
breviora? Stamina 6, tetradynama edentula. Silicula bi- 
valvis, stylo persistente superata, ovata vel oblonga, valvis 
carinato-concavis, septi latissime fenestrati rudimento loculi 
apicem! vel ejusdem basim(?) occupante. Semina 6-20, 
subovoidea. Integumentum simplex, tenue. Albumen nul- 
lum, nisi lamina gelatinosa tenuissima versus umbilicum 
crassior. Embryonis curvati cotyledones plano-convex®; 
cula adscendenti zquilong, zincumbentes. a 
Eudema grandiflora, Planch.; rhizomate simplici brevi, p 
foliis linearibus glaberrimis confertis basi dilatatis, pedicellis - 
