C. laxum C. kolliensis
Plant height >20 cm < 15 cm
Leaf Flat, >16 cm long, <5 mm wide, 16 - 18 nerved Conduplicate, < 10 cm long, >5 mm wide, 11 - 13 nerved
Inflorescence > 20 cm < 13 cm
Bracts Lanceolate, >10mm, glabrous, apex acuminate Ovate, <4mm, ciliate along the midnerve, apex acute
Bracteole Ovate Triangular
Filaments
Filament ±2 mm long, uniform throughout, anther lobe apex apiculate
Filament 1 - 1.5mm long, inflated at base, anther lobe apex obtuse
Ovary & style 1 x 1 mm, 1 mm long 1 x 1.5 mm, 1.2 mm long
Seed 2 - 4 in each cell, 3 x 3mm 1 - 2 in each cell, 2 x 2,2mm
No. of Tuberous root ±10 ±5
Altitude < 200 m msl >1200 m msl
Pollen shape and P/E ratio Ellipsoid, 1.6 Ovoid, 1.2
Pith of root 3 - 4 cells across 13 - 14 cells across
No. of vascular elements ca.8 ca. 13