Table 1 Comparison of Calanthe x hsinchuensis with putative parents, C . arisanensis and C . sieboldii

Root diameter (mm)

1.9 – 2.1

2.1 – 2.5

1.5 – 1.6

Leaf

Leaf shape

Elliptic to narrow elliptic

Narrowly elliptic

Broadly elliptic

Length (cm)

40 – 55

15 – 25

35 – 40

Width (cm)

6.5 - 9

4 – 4.5

9 – 12

Inflorescence

Length (cm)

50 – 70

25 – 40

50 – 80

Width (mm)

4.2 – 4.9

3.1 – 3.2

4.9 – 5.1

Flower

Tepal color

Creamy yellow

Pinkish white

Yellow

Spur (mm)

8 – 12

14 – 15

4 – 5

Spur shape

Curved

Curved

Antrorse

Capsule

Capsule shape

Capsule with 6 lightly longitudinal wing-like ridges

Capsule with 6 longitudinal wing-like ridges

Capsule without conspicuous longitudinal wing-like ridges

Length (cm)

4.8 – 5.2

5.2 – 6.1

5.1 – 5.3

Width (cm)

1.6 – 2.0

2.0 – 2.3

1.5 – 1.7