Table 3 Comparison of Wetmoreana ochraceofulva and W. variegata

Apothecium diam. (mm)

0.4–0.6 (n = 2)

0.2–0.9 (n = 7)

Apothecial margin

Slightly prominent to level with disc

Prominent, rarely level with disc

Amphithecium vs parathecium

Parathecium dominant

Both ± evenly developed

Cortex of amphithecium

Indistinct

Well developed, thin

Spores (µm)

Spore septum (µm)

(10–)12.6 ± 1.5(–16) × (4–)5.7 ± 0.8(–8) (n = 39)

(2–)2.9 ± 0.3(–4)

(10–)13.1 ± 1.5(–17) × (5–)6.3 ± 0.75(–9) (n = 125)

(3–)3.6 ± 0.5(–5)

Spore length/septum ratio (M_min–M–M_max)

4.3–4.4–4.4

3.2–3.6–4.1

Marginal lobes

Plane

Plane to convex

Marginal lobes length (mm)

0.3–2.4 (n = 14), mean length 2.0 ± 0.3 (only max. values)

0.2–4.5 (n = 19), mean length 2.5 ± 0.9 (only max. values)

Marginal lobe thickness (µm)

(50–)215 ± 73(–400) (n = 19)

(125–)296 ± 119(–600) (n = 19)

Thalline areoles

Plane

Plane to convex

Vegetative propagules

Isidia, always present

Schizidia, rarely isidia, or absent

Substrate

Siliceous or calcareous rocks

Mostly siliceous rocks

Distribution

Africa, Arabian Peninsula and South America

South America

References

This paper

This paper