KEY 10 SUB-CLASSES, ORDERS AND GENERA. 139 
XXVI—RUTACEA—cont. 
(ii) Stamens 8 ; capsule of 4 follicles, each (by abortion) 1 seeded :— 
(1). Leaves downy ; ; calyx cup-shaped, subentire ; corolla of 4 
petals united in a tube: ... exli-—Correa. 
(2) Leaves ginprons:’ calyx 4-lobed.or ‘parted ; petals 4, sessile, spread- 
ing :— see Cxliv—MELICOPE. 
(IT) Leaves opposite, 3- ‘foliate or pinnate ; ‘unarmed :— 
(i) Leaves with 3—5 rigid leaflets; calyx 4-cleft, persistent; petals 4, 
persistent; stamens 4 with 4, staminodes ; capsule 4 celled, seeds few in each 
cell, flattened:—  .. . exxix— Boronia, 
(ii) Leaves 8.folinto: “sepals 5, two outer mich larger ; corolla salver- 
shaped with oblique 5- parted limb ; stamens 2 fertile with 3 staminodes pro- 
jecting from the tube ; capsule of 5-carpels, each 1-seeded :— ... ... exl—kKavenia, 
(iii) Leaves with 3—11 leaflets; sepals 4—5 ; petals 4—5, sessile ; stamens 
4—5 ; capsule of 4 coriaceous l-seeded cocej :— .. a2 a ... ¢@xlii—Evodia, 
(III) Leaves alternate; unarmed :--- 
(i) Leaves. 1—foliate :— 
(1) Stamens 10, baanlt ; capsule of 5 ollicles,-each 1-seeded; petals 5, 
marcescent :- x cxlii—Eriostemon, 
(2) Sianens S; “fruit a dupe ; flowers ‘-merons, polygamous :— 
exlvii— Acronychia. 
(it) Leaves imparipinnate ; fruit a berry :— 
(1) Style short, persistent ; berry white globose :— ..» exlviili— zlycosmis. 
(2) Style deciduous ; ovary 2-celled; berry oblong or ovoid:— __c¢l— Murraya. 
(83) Style deciduous; ovary 4—5 celled ; berry oblong or ovoid ; stamens 
10, filamerts subulate :-— e exlix—Micromelum, 
(4) Style deciduous ; ovary 5 celled ; berry oblong, ovoid, or globose ; 
stumens 8—10, filaments tapering upwards from broadened base : ——Neee “oli—Clausena, 
(IV) Leaves alternate ; usually armed :-— 
(i) Fruit capsular of ‘4—5 coriaceous follicles 3 leaves 3-foliate or imparipin- 
nate, petiole often winged ; flowers often 1 sexual ; stamens 3—8 :— 
(ii) Fruit a berry ; leaves 3-foliate or imparipinnate :— 
(1) Gvules 1—2 in each cell :— 
(A) Leaves digitately trifoliate ; flowers 1-sexual ; 3 sarmentose shrub:— 
exlvi—Toddalia. 
(B) Leaves 3-foliate, leaflets crenate, petiole not winged ; flowers 2-sexual, 
3-merous, stamens 6; shrub:— as ... clii—t'riphasia, 
(C) Leaves 3- foliate, petiole not winged ; flowers 2- sexual 4— 5 merous ; 
stamens 8 ; climbers :— .. ¢cliv—Luvunga, 
(D) Leaves 3—7 foliate, petiole winged ; firwers 2-sexual ; trees :— 
cliii—Limonia, 
(2) Ovales numerous in each cell :— 
(A) Leaves unparipinnate ; petiole winged :— “Ec + Clvili—Feronia. 
(B) Leaves 3-foliate, petiole not winged :—... PEE 5a5 clix—#gle. 
(iii) Frait a berry ; leaves 1-foliate :— 
(1) Ovules 1—z in each cell :~— 
(A) Erect ; flowers in racemes or corymbs :— “e .. Clvi—Atalantia, 
(B) Scandent ; flowers solitary or fascicled :— ns ...cly—Paramignya, 
(2) Ovules many in each celj :— = a see clvii— Citrus. 
XXVII—SIMARUBEACEAI— ; 
[Botanical Note.—-Balanites is sometimes placed in Order XXIV—ZycoPHYLLacE%, | 
(1) Leaves imparipinnate :—- 
(i) Petiole winged and jointed; fruit 5 fleshy drupes ; flowers 2 sexual, 
5-merous, red, in terminal clusters :— aaa clx—Quassia, 
(ii) Petiole not winged ; fruit of 4 fleshy drupes ; flowers polygamous, 
minute, purple, iu racemiform clustars :— .. cClxiii—mBrucea, 
(iii) Petiole not winged ; frnit of 1--5 samaras, “each rh seeded; flowers 
polygamous, small, greenish yellow, panicled :— - ie A ilenitaie 
(1I) Leaves 2-foliate ; spinous ; fruit a large berry with. ‘bony endocarp ; flowers 
2-sexual, greenish, in lateral racemes or fascicles :— ca ... clxyi—Balanites, 
(III) Leaves simple, entire ; littoral species :— 
