Table 1.
Differences between Siphocampylus antonellii, Siphocampylus elfriedii, and Siphocampylus parvifolius.
| Siphocampylus antonellii | Siphocampylus elfriedii | Siphocampylus parvifolius | |
|---|---|---|---|
| Leaf shape | Linear-oblanceolate | Lanceolate | Lanceolate to oblanceolate |
| Leaf size | 3.8–5.2 × 0.3–0.55 cm | 5.0–7.4 × 1.1–1.9 cm | 2.0 × 0.5 cm |
| Leaf margin | Margin sinuate, subentire, or diminutively dentate | Denticulate | Weakly crenulate |
| Sepal length | 0.7–1.6 cm | 0.7–1.4 cm | 0.3 cm long |
| Sepal margin | Diminutively dentate | Denticulate | Entire or diminutively denticulate |
| Corolla length | (2.8–) 3.9–5.1 cm | 3.9–4.6 cm | 3.4 cm |
| Corolla indument | Pubescent | Pubescent | Glabrous |
| Dorsal corolla lobe length | 1.0–1.6 cm | 0.9–1.2 cm | 1.1–1.4 cm |
| Ventral corolla lobe length | 1.4–1.9 cm | 0.5–1 cm | 0.9–1.2 cm |
| Reference sheets | L. Lagomarsino 400 (A) | L. Lagomarsino 387 (GH); J. L. Luteyn & M. L. Lebrón-Luteyn 6395 (MO); F. W. Pennell 13841 (GH); T. Plowman & E. W. Davis 5126 (GH); J. West 7045 (GH) | R. D. Metcalf 30469 (A) |