376 FLORA OF SOUTH AMERICA, 
the East Indian species by the closer adherence of the calyx, 
the upper part of which, however, remains more or less free, 
and never entirely covers the fruit. 
Nos. 2516, 2787, 3040, 5378, 5379, and 5974 of 
Gardner’s Brazilian plants, and 194 of Hostmann’s Surinam 
plants, all belong to Heisteria, to which genus must also be 
referred Hesiodia perianthomega, Vell. Fl. Flum. v. 3, t. 140. 
No. 938 of Gardner from Pernambuco,and 395 of Hostmann 
from Surinam are the Ximenia Americana, and No. 1478 of 
Gardner and 2787 of Blanchet appear to be a new species 
of Ximenia. : 
No. 5380 bis, of Gardner, from a single straggling shrub 
found in a forest at Tejuca, about 14 or 15 miles from Rio 
Janeiro, is a very singular plant, apparently allied to Ola- 
cineee, but unfortunately past flower in the specimens found. 
It has the habit, foliage, and inflorescence of a Heisteria. 
My specimens bear ovaries in different states of develop- 
ment after the fall of the corolla. "They are fleshy and pul- 
vinate, one-celled inside, with one ovule pendulous from a 
lateral placenta. The calyx is persistent, very small, and 
bluntly 6-lobed, or rather with three emarginate lobes. Be- 
tween the calyx and ovary are three cupshaped truncated 
disks one within the other. The outer one, considerably 
larger than the calyx, appears to increase gradually as the 
ovary swells; within it the second disk, larger than the first, 
grows more rapidly close round the ovary, the third, or 
innermost disk, is quite short, remains concealed within the 
second, and does not appear to increase at all. The ovary 
is very obtuse, and crowned with the remains of a filiform 
Style, from the base of which may be traced six diverging 
lines. Velloso’s rude figure of Epigenia crenata (Fl. Flum. 
v. 4, t. 140) has some resemblance to this plant—at least he 
figures one or two disks to one of the detached fruits. His 
E. integerrima is probably a Styrax. 
Allied to.Olaz is the foliowing new genus among Martius's 
Cayenne plants :— 
PrYcHOPETALUM. Calyx minimus, obsolete 5-dentatus. 
