Table 2 Morphological characteristics of lichens
Identifying characteristics | T. virens | P. dendritica |
|---|---|---|
Habitat | Epiphyte (corticolous) | Epiphyte (corticolous) |
Thallus type | Crustose (continuous) | Crustose (continuous) |
Color | Greenish to brown | Whitish to cream-colored |
Cortex | Varies in outline (45–90 mm) thick, frequently attached to bark | Variable cortex (20–85 mm) thick, frequently attached to substratum |
Photobiont | Trentepohlia sp. | Trentepohlia sp. |
Thalline edge | Thin, flattened, and complete | Thin and complete |
Apothecia | Instead of apothecia, perithecia present | flush with the thallus or slightly elevated |
Hymenium | Flattened epihymenium | Hyaline, inspersed, sparsely branching tips |
Soralia, oidia, and isidia | Absent | Absent |
Pseudostromata | 7-mm long or width, slightly raised (Increase with thallus age) | Absent |
Ostioles | Appears as black beaded in aerial view | Absent |
Spores | Hyaline, septate, (38–52μ) long | Ascospores: brown, transversely septate (11–22μ) |