Table 2 Comparison of Begonia longiornithophylla with B. ornithophylla and B. auritistipula
Begonia longiornithophylla | B. ornithophylla | B. auritistipula | |
|---|---|---|---|
Rhizome | Elongated, 6–12 mm thick, internodes 3–9 cm long, densely villous | Not elongated, 5–12 mm thick, internodes 0.6–1.5 cm long, glabrous | Elongated, 3–6 mm thick, internodes 2–6 cm long, sparesly hirsute-villous |
Stipule | Red, boat-shaped, strongly keeled, villous along midrib, margin ciliate | Yellow-green with reddish veins, triangular, keeled, sparsely villous along midrib, margin entire | Yellow-green with reddish veins, broadly ovate, base obliquely auriculate, margin entire |
Petiole | Villous to tomentose | Villous to tomentose | Reflexed hirsute |
Leaf | |||
Adaxial surface | Scabrid and glandular punctate | Scabrid and glandular punctate | Setulose |
Abaxial surface | Red-scabrous on veins | Villous on veins | Hirsute-pilose on veins |
Texture | Subcoriaceous | Subcoriaceous | Papery |
Margin | Crenulate and ciliate | Coarsely serrate or subentire | Serrulate and ciliate |
Maculation | Lacking | Lacking | Brownish between primary veins |
Inflorescence | |||
Peduncle | Glandular-pilose | Pilose | Glabrous |
Abaxial surface of outer tepals | Red-pilose | Glabrous or nearly so | Glabrous or nearly so |