RUTACEÆ. 509 
107. Harrisonia R. Br'—Flowers hermaphrodite ; calyx short, 
4, 5-fid. Petals 4, 5, longer, rather thick, valvate. Stamens 8-10, 
inserted round annular or shortly cupular (Zasiolepis) disk; fila- 
ments free, enlarged at base in scales, entire or shortly 2-fid ; 
the oppositipetalous slightly shorter; anthers introrse, 2-rimose. 
Germen free ; cells 4, 5, oppositipetalous, more or less prominent 
at back ; styles same in number, connate or free at base, stigma- 
tiferous slightly dilated at apex ; ovule in cells solitary, descending ; 
micropyle extrorse, superior. Drupe globose or depressed, with 
2-5-pyrena; pyrena perforated, l-spermous; seeds curved; testa 
rather thick ; embryo scantily albuminous ;* cotyledons conduplicate 
at middle; radicle short, superior.-—Glabrous* spinescent shrubs ; 
spines often 2-nate; leaves alternate, 1-3-foliolate or imparipinnate ; 
folioles entire or few-dentate; flowers in axillary cymes; pedicels 
bracteolate at base (Australia, Malay. Arch). 
108? Irvingia Hook. r.°—Flowers hermaphrodite, 4-5-merous ; 
sepals short, free, connate at base, imbricated. Petals longer, im- 
bricated, patent. Stamens 8-10, 2-seriate ; filaments inserted below 
thick elevated pulviform disk, free ; more or less plicate in bud; the 
oppositipetalous shorter ; anthers short, introrse, 2-rimose. Germen 
seated at summit of depressed disk, 2-locular ; style simple, curved 
in bud, stigmatiferous more or less capitellate at apex; ovule in 
each cell solitary, descending, incompletely anatropous ; micropyle 
extrorse, superior. Drupe thick, ligneous, oblong or shortly ovate, 
compressed ; flesh scanty; putamen hard; albumen fleshy, copious’ 
or 0;° embryo inverse; cotyledons’ flat, foliaceous or plano-convex, 
amygdaloid; radicle short, superior.—Glabrous insipid epunctuate 
trees ; branches annulate at nodes; bud blocked by axillary stipules, 
convolute in acuminate more or less curved cone (finally marked 
with the annular cicatrix) ; leaves alternate, simple, entire, coria- 

1 Ex A. Juss., in Mém. Mus., 517, xii. t. 28, 
fig. 47 (nec ADANs., nec Hoox.).—ENDLt., Gen., 
n. 5967.—B. H., Gen., 314, n. 25.—Æbelingia 
ReIcus., Consp., 199. 
2 BENN., Pl. Jav. Rar,, 202, t. 42.—Pu., in 
Hook, Lond, Journ., v. 570. 
3 Greenish. 
4 Dry nigrescent. 
5 Spec. 2, 3. Gaupicu., in Freycin. Voy., 
Bot., t. 103.—MrQ., Fl. Ind.-Bat., Suppl., 209. 
—Bentu., Fl. Austral., i. 376.—WALP., Ann., 
i. 165. 
6 In Trans. Linn. Soe., xxiii, 167.—B. H., 
Gen., 314, 993, n. 24.—H. Bn., in Adansonia, 
viii. 91. 
7 In I. Smithii Hoox. ¥., the cotyledons of 
which are foliaceous. 
8 In Z. Gabonensi (H. BN., loc. cit.—I. Bar- 
teri Hook. r.), with plano-convex cotyledons. 
9 In Z. Smithii virescent. 
