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Table 2 Comparison of Begonia ferox with B. nahangensis

From: Novelties in Begonia sect. Coelocentrum: B. longgangensis and B. ferox from limestone areas in Guangxi, China

 

Begonia ferox(Figure5 and6)

Begonia nahangensis(based on the protologue of Averyanov & Nguyen,2012)

Stipules

1-1.7 cm long, ovate-triangular, strongly keeled with aristae

0.4-0.6 cm long, triangular

Petiole

10-14 cm long, white villous when young, turning brownish tomentose

(2)3-6(10) cm long, densely villous

Leaf blade

  

 Apex

Acuminate

Obtuse to nearly rounded

 Shape

Ovate

Broadly ovate or reniform

 Size

11.5-18.5 cm long, 8–12 cm wide

(5)8-12(15) cm wide, usually broader than long

 Texture

Chartaceous

Leathery

Inflorescence

  

 Peduncle

5-10.5 cm long, shorter than petiole, brownish tomentose

8-12(15) cm long, exceeding leaves, glabrous

 Carpellate flowers

Outer tepals pinkish-white, suborbicular or broadly ovate, 0.8-1.1 cm long, 0.7-1.1 cm wide; inner 1 elliptic, white, 0.8-0.9 cm long, 0.3-0.4 cm wide

Outer tepals light olive-green, broadly reniform, 0.5-0.6 cm long, 0.9-1.1 cm wide; inner 1 narrowly obovate, 0.5-0.6 cm long, 0.3-0.35 cm wide

 Staminate flowers

Outer tepals pale pinkish-yellow, broadly ovate, 0.9-1.1 cm long, 0.6-1.1 cm wide; inner 2 elliptic, white, 0.7-1.1 cm long, 0.4 cm wide

Outer tepals white to light pink (abaxially flushed with brightly red), broadly ovate to almost orbicular, 0.8-0.9 cm long; inner 2 narrowly obovate, 0.4-0.5 cm long, 0.25-0.3 cm wide

Capsule

1-1.5 cm long; abaxial wing crescent-shaped, 0.6-0.9 cm tall

0.8-1 cm long; abaxial wing oblique-triangular, 0.4 cm tall