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Table 1 Comparison between P. luisae and closely related species

From: Philodendron luisae (Araceae), a new species from Rio de Janeiro State, Brazil

Species

Internodes dimension (cm) and shape

Extrafloral nectaries

Leaf dimension (cm)

Primary lateral veins

Inflorescences per sympodium

Apical sterile zone

Spathe color outside, constriction and opening at anthesis

Resin canals inside the spathe

P. fragile

1–5, terete

absent

15–37 × 9–24

4–5

1(−2)

absent

greenish becoming cream towards the apex, slightly constricted, moderately opened

not visible

P. luisae

4.7–11(−15), markedly angular

absent

16–20 × 9–11.3

3–4

1

present

green becoming cream towards the apex, not constricted, moderately opened

visible

P. millerianum

2.4–8.5, terete

absent

20.2–21.7 × 4–11.1

4

1

present

completely white, strongly constricted, slightly opened

not visible

P. simonianum

2–4, terete

absent

36–42 × 14–20

3–4

3–4

present

completely white, not constricted, reflexed

not visible

P. tenuispadix

3–4, terete

present

51–59 × 24–27

6–8

1–3

present

completely green, slightly constricted, almost completely opened, but not reflexed

not visible

  1. Information from P. millerianum, P. simonianum and P. tenuispadix according to the original publications (Coelho and Sakuragui [2007], Sakuragui [2001] and Gonçalves [2002], respectively); from P. fragile according to Sakuragui et al. ([2005]).