(2) REGIONAL KEY TO THE SPECIES — PENINSULAR MALAYSIA, SINGAPORE

1Lower leaf surface seemingly glabrous, though actually with (sub)persistent, dense, ± flat, tightly interwoven hairs, silky to the touch. Leaves stout.
1'Lower leaf surface either glabrous (glabrescent), or with indumentum not silky to the touch. Leaves large or small.
2Bark of twigs longitudinally cracking, when older flaking.
2'Bark of twigs neither cracking nor flaking.
3Twigs 4-12 mm diam. Buds 6-10 mm long. Fruits 2.5-8 cm long.
3'Twigs 2-4 mm diam. Buds 5-8 mm long. Fruits 1.5-2.5(-3) cm long.
4Hairs on twigs (3-)5-8 mm long, those of flowers 1-3 mm long, of fruits 5-13 mm long.
4'Hairs shorter.
5Pedicel 1.5-2 mm long. Fruits 2.5-3.5 cm long, fruiting pedicel 2-5 mm long.
5'Flowers not known. Fruits 4-4.5 cm long, fruiting pedicel 18-25 mm long.
6Lower leaf surface with dark dots, usually on the smaller veins.
6'Lower leaf surface without dots.
7Lower leaf surface with sparse scale-like hairs 0.1 mm long.
7'Lower leaf surface with hairs (0.2-)0.3-l mm long.
8Leaves 3.5-15(-20) cm long, membranous or chartaceous, drying greenish or brown. Twigs (0.5-)l-2 mm diam., early glabrescent, often yellowish. Fruits often glabrescent, 2-5 cm long. Anthers 9-25(-30), closely appressed.
8'Leaves small or large, membranous or coriaceous, greenish or brown. Twigs slender or stout, drying brown or blackish. Fruits variable. Anthers not tightly appressed.
9Hairs on twigs and flowers (0.1-)0.2 mm long or more; hairs often comparatively short in K. globularia and K. pseudolaurina, both with striate twigs.
9'Hairs on twigs and (usually) flowers, 0.1-0.2 mm long or less; hairs comparatively long in K. rubens, a species with twigs ± flattened.
10Buds 8 mm long, inside with a conspicuous disc at base; perianth persistent in fruits.
10'Buds 4-10 mm long, without disc at base; perianth not persistent in fruits.
11Twigs striate, l-2(-2.5) mm diam. Leaves 6-18(-24) cm long, drying with a blackish metallic lustre above; lower surface late glabrescent, at first with hairs 0.1 mm long.
11'Twigs striate or not, 1.5—6(—10) mm diam. Leaves 9-40(-55) cm long, without a blackish metallic lustre; lower surface glabrescent or with persistent hairs 0.2 mm long or more.
12Twigs flattened or bluntly 2- or 3-angular. Leaves (lens!) pitted above (like the surface of the peel of an orange). Fruits usually beaked at apex
12'Twigs ± terete. Leaves not pitted. Fruits not beaked.
13Leaves early glabrescent beneath.
13'Leaves with persistent indumentum beneath.
14Twigs (4-)5-8 mm diam. Leaves 15-55 cm long. Buds 8-10 mm long. Fruits 3-6 cm long, with hairs (0.5-)l-2 mm long.
14'Twigs 1.5-4 mm diam. Leaves 9-35 cm long. Buds 5(-6) mm long. Fruits 2.5-4 cm long, rather glabrescent, hairs 0.3-0.5 mm long.
15Buds 6-8 mm long, with hairs 0.1-0.5 mm long. Fruits (2.5-)3-4(-5) cm long. Hairs on lower leaf surface stellate-dendroid, of mixed sizes
15'Buds 4-6 mm long, with hairs 0.5-l(-2) mm long. Fruits 1.5-2.5 cm long. Hairs on lower leaf surface ± equal, stalked-dendroid (of mixed sizes in var. heteropilis).
16Twigs flattened, with hairs 0.1-0.2 mm long. Leaves early glabrescent beneath, except the basal part of the midrib.
16'Twigs terete, with hairs 0.1-0.2 mm long or less. Leaves glabrescent or with persistent indumentum beneath.
17Leaf base rounded or cordate. Lower leaf surface glabrescent, or with weak hairs 0.1-0.2 mm long. Fruits ellipsoid, (3-)4-6 cm long; fruiting pedicel (2-)5-12 mm long.
17'Leaf base rounded or attenuate (rarely (sub)cordate in K. rigidifolia with coriaceous leaves and K. scortechinii with coriaceous leaves and with subpersistent indumentum beneath). Lower leaf surface glabrescent or with a variable indumentum. Fruits to 4 cm long; fruiting pedicel variable.
18Lower leaf surface glabrescent, at first with weak greyish hairs 0.1 mm long or less.
18'Lower leaf surface late glabrescent or with (sub)persistent hairs 0.1-0.4 mm long, sometimes remaining on and near midrib and nerves (completely glabrescent, with distinct hair scars, in K. rigidifolia).
19Leaves 6-20(-25) by 2-5.5(-ll) cm. Fruits 1.8-3(-4?) cm long.
19'Leaves 12-30 by 4.5-12 cm. Fruits 3-4 cm long.
20Leaves coriaceous. Fruits (sub)globose, 3-4 cm diam.; fruiting pedicel 1-3 mm long.
20'Leaves membranous or chartaceous, or ± coriaceous in K. scortechinii and K. pa-tentinervia. Fruits ellipsoid, of variable sizes; fruiting pedicel (3-)4-20 mm, in K. andamanica 0.5-7 mm long.
21Lower leaf surface largely glabrescent, hairs 0.1-0.4 mm long, persistent on and near midrib and nerves. Style slender, stigma lobes erect, together 1.5(-2) mm long. Male buds ellipsoid or pear-shaped. Anthers 6 or 7.
21'Lower leaf surface with conspicuous or inconspicuous (sub)persistent indumentum. Style shorter or absent, stigma lobes ± spreading. Male buds subglobose. Anthers 6-18; 6-11 in K. stenophylla, 7-9 in K. communis.
22Leaves with ± conspicuous rather dense stellate-dendroid hairs 0.2 mm long beneath (old leaves glabrescent). Venation distinct above, with aréoles 0.5 mm diam. or less.
22'Leaves either with sparse hairs 0.2 mm long or less, or with sparse or dense scalelike hairs 0.1 mm long or less. Venation distinct or indistinct above; aréoles 0.5 mm diam. or more.
23Twigs 1—2(—3) mm diam., smooth, not wrinkled. Fruits 1.5-2.2 cm long.
23'Twigs (1.5-)2-4 mm diam., often wrinkled. Fruits 2-2.5 cm long.
24Fruits 1.5-1.8 cm long. Buds 4 mm long; inside reddish (?). Leaves (oblong-)lanceolate, broadest usually at the middle; base cuneate.
24'Fruits 1.8-2.2 cm long. Buds 4-5.5 mm long; inside greenish creamy to yellowish. Leaves oblong to lanceolate, broadest usually below the middle; base rounded or cuneate.
25Leaves thinly coriaceous, glossy above. Lateral nerves ± patent; nerves and venation on upper surface flat or sunken, indistinct. [Perianth inside yellowish (always?).].
25'Leaves membranous or chartaceous, usually dull above. Lateral nerves less patent; nerves and venation distinct or not above.
26Lateral nerves and venation sunken, flat, or raised, distinct or indistinct above. Perianth inside creamy or yellowish (always?). Fruits at base rounded or sometimes attenuate; hairs scale-like, 0.1 mm long or less.
26'Lateral nerves and venation raised and distinct above. Perianth inside creamy. Fruits narrowed at base; hairs 0.2-0.4 mm long.