RUTACE 1]. 401 
Melunococca belongs to a small abnormal subseries in this group, 
as its flowers, otherwise constructed like those of Zanthorylum, have, 
it is said, uniovulate carpels, succeeded by monospermous drupes, 
and its compound pinnate leaves have no glandular punctures. 
Comeurya, incompletely known, has the same pinnate leaves; 
but the floral receptacle is cupuliform, and the androceum dip- 
lostemonous. 
Three small Mexican genera, Decatropis, Polyaster and Megastigma, 
form also a separate subseries, in which the flowers are always 
hermaphrodite, small, diplostemonous, and the leaves imparipinnate. 
In the two former the carpels are free, and the same in number as 
the petals, while those of M/egastigma are united among themselves 
in an ovary with two or three cells, surmounted by a style with large 
stigmatiferous dilatation. Decatropis has ascending ovules, exterior 
micropyle, and carpels bicarinate upon the sides. In Polyaster the 
ovaries are oblong, without bracts, and the descending ovules have 
a superior and exterior micropyle. 
In the subseries Pilocarpee, Pilocarpus has alternate, opposite, 
or verticillate leaves, 1-3-foliolate or imparipinnate, and flowers 
in racemes or spikes, isostemonous, with valvate or slightly imbri- 
cated corolla, and an ovary with several cells, the backs prolonged 
into more or less prominent lobes,  Æsexbeckia is distinguished 
by its free carpels more or less covered with tubercles and its flowers 
disposed in racemes or cymes. /e/ietta has the same gynæceum as 
Pilocarpus, with two or three cells becoming at maturity as many 
distinct samaras. Zvnasia has also an ovary with three cells prolonged 
above into a dorsal wing. The fruit is capsular, and all the verticils 
of the flowers are generally trimerous. In Hortia, whose place in this 
subseries is a little doubtful, the pentamerous flowers are nearly 
those of Hsenbeckia ; the leaves are simple or trifoliolate ; the calyx 
cupuliform, five-dentate, the petals valvate; and the fruit is a five- 
celled berry, containing seeds with albuminous embryo. 
Acronychia has, like Hortia, a single ovary containing four biovulate 
cells. The petals are valvate, the androceum diplostemonous, the 
leaves opposite or alternate, unifoliolate, rarely trifoliolate. Æalfordia, 

form petals, isostemonous perigynous androceum numerous hypogynous stamens and free carpels, 
and 4—5-lobed ovary, digitate leaves 5-10-folioled. eight in number. The leaves are alternate and 
The latter has with tetramerous flowers an  trifoliolate, 
imbricated perianth with very unequal leaves, 
VOTRE: D D 
