TABLE 1 in Asplenium atlanticum (Aspleniaceae), a new endemic fern from the Brazilian Atlantic Forest

TABLE 1. Morphological comparison of Asplenium atlanticum, A. martianum, A. muellerianum, and A. pseudonitidum.
Species CharactersA. atlanticumA. martianumA. muellerianumA. pseudonitidumPetioleSurfacedulldulldulllustrousSize (cm)11–14.4(–16)(21.4–)24–39.68–10(–21)(18.2–)27–36.4LaminaeShapedeltoid to lanceolateovate-lanceolate to triangularlanceolatedeltoidDivision2-pinnate2-pinnate to 3-pinnate1-pinnate to 2-pinnate2-pinnateMargindentateserrate-dentate to crenate or dentateserrate to dentatecrenate to entireSize (cm)14–18(–21) × 4–5(–8)26.7–43.6 × (6.5–)10.7– 14.7(–17.4)25–32(–44) × 5–6.5(–12)(18.5–)25–30.5 × 9–17.2PinnaeShapelanceolatedeltoid-lanceolate to lanceolate or oblongdeltoid to lanceolatelanceolateSize (cm)3–4(–6.9) × 1–1.5(4.8–)6–9.9 × (1–)1.3–22.3–5.2(–7.3) × 0.7–1.17–10 × 1.5–3Apexobtuse to acuteattenuate to attenuate- caudate or acuteattenuate to attenuate- caudateacutePinnulesShapeovatelanceolate to deltoid or oblongovate-orbiculate to oblongoblong to lanceolateApexobtuseacute to obtuseobtuseobtuse to acuteStem scalesShapelinear-lanceolate and lanceolatelanceolatelinear-lanceolatelanceolateLength (cm)0.2–0.4(–0.5)0.2–0.30.2–0.30.2–0.3(–0.5)Base width (cm)(0.02–)0.03–0.05(–0.06)0.04–0.06–0.04–0.07SoriShapeelliptic and linearlinearlinearelliptic