Table 5.

Morphological characters distinguishing Afgekia and Padbruggea. Comparison is made of critical characters of these genera in support of the transfer of A.filipes to Padbruggea.

List of characters	Padbruggea dasyphylla	Padbruggea (=Afgekia) filipes	Afgekia sericea	Afgekia mahidoliae
Stem sap colour	blood red	blood red	colourless	colourless
Stipule type	4–8 mm, ovate-lanceolate, caducous	1–2.5 mm; deltoid; caducous	15–25 mm; ovate-lanceolate; persistent	10–20 mm; ovate-lanceolate; persistent
Leaflet number	9 –17	13–19	15–17	9 –11
Inflorescence type	multi-branched panicle	multi-branched panicle	simple axillary raceme	simple axillary raceme
Inflorescence axis	robust, thickened, woody,	robust, often thickened and becoming woody	slender, not thickened or woody	slender, not thickened or woody
Pedicel length	4–7 mm long	15–25 mm long	7–20 mm long	7–10 mm long
Calyx teeth	acute; 1–3 mm long	obtuse; 3–6 mm long	linear-lanceolate; 4–17 mm long	linear-lanceolate; 5–15 mm long
Floral bracteole	3–6 mm long; caducous	0.5–1 mm long; caducous	absent	absent
Floral bract type	4–5 mm long, ovate; apex acute; as wide as flower buds at anthesis	15–20 mm long; broadly ovate; apex acute; wider than flower buds prior to anthesis	20–35 mm long; lanceolate; apex attenuate; narrower than flower buds at anthesis	15–30 mm long; lanceolate; apex attenuate; narrower than flower buds at anthesis
Floral fragrance	fragrant	fragrant	scentless	scentless
Callosities on standard petal	1 pair; ridge type	1 pair; papillate	2 pairs; 1 papillate, 1 corniculate	2 pairs; 1 papillate, 1 corniculate
Wing petal appendage at base	one claw	one claw	two claws	one claw
Keel petal shape and pubescence	white or pale pink; glabrous; falcate	white or lilac; glabrous; cochleate	white; densely pubescent; naviculate	white; densely pubescent; naviculate
Filament hairs above and below anthers	absent	absent	present	present
Pod size, shape and surface ornamentation	100–170 x 50–90 mm; oblong; apex obtuse; velutinous; obliquely ridged	170–250× 50–110 mm; ovoid-fusiform; apex obtuse; velutinous; obliquely ridged and furrowed	70–150 × 30–40 mm; ellipsoid-obovoid; apex acute; velutinous; smooth, lacking ridges	60–90 × 30–35 mm; ellipsoid-obovoid; apex acute; velutinous; smooth, lacking ridges
Seed size, number per fruit, shape and surface texture	40–50 × 30–40 mm; 1 or 2; oblong, testa smooth	60–80 × 40–50 mm; 1, rarely 2; oblong-orbicular, testa rugose or wrinkled	15–20 × 10–12 mm; 2 or 3; lenticular-orbicular, testa smooth, glossy	18–25 × 12–14 mm; 2 or 3; lenticular-orbicular, testa smooth, glossy
Hilum shape and length	18–20 x 4–5 mm; narrowly elliptic; 1/3 circumference of seed	20–36 × 5–7 mm; narrowly elliptic; 1/6 to 1/8 circumference of seed	15–22 × 2–4 mm; ligulate; 1/2 circumference of seed	18–30 × 2–4 mm; ligulate; 1/2 circumference of seed