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Mesophyllum erubescens
Taxonomy
Lithothamnion erubescens was named by Foslie (1900).
It was recombined as Mesophyllum erubescens by Lemoine (1928), Hrabovsky et al. (2016).
It was recombined as Mesophyllum erubescens by Lemoine (1928), Hrabovsky et al. (2016).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1900 | Lithothamnion erubescens Foslie |
| 1928 | Mesophyllum erubescens Lemoine |
| 2016 | Mesophyllum erubescens Hrabovsky et al. p. 508 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
†Mesophyllum erubescens Foslie 1900
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. Hrabovsky et al. 2016 | Growth form encrusting non-protuberant to
layered to foliose. Thallus of relatively constant thickness 350460 mm, superposed thalli up to 760 mm thick (Fig. 10A). Plant monomerous, dorsiventral (Fig. 10A, B). The VC coaxial to non-coaxial, 152196 mm and 2224 cells thick, formed by rectangular to trapezoidal cells, L 2335 mm £ D 912 mm (n D 15; Fig. 10B). PF 196436 mm thick, zones irregular and wavy (Fig. 10B). Cells of PF rectangular to squarish, L 812 mm £ D 7 10 mm (n D 21). Cell fusions present in VC and PF (Fig. 10B). One layer of rounded to flattened EC, L 45 mm £ D 57 mm (Fig. 10C). Cells of the meristem as long as or longer than cells subtending them. Multiporate asexuate conceptacles slightly protruding above the thallus surface (Figs 10D, 18F, G), and undergoing burial by subsequent thallus growth. Chambers in LS subrectangular with rounded sides, flat roof and floor, H 104118mm £ D 289316 mm (n D 6). D/H is 1.83. Roof thin, about 30 mm and 34 cells thick, without peripheral rim. Squarish to slightly rectangular roof cells, L 57 mm (n D 7) £ D up to 6 mm, thus different from cells of the vegetative PF. |
Measurements
No measurements are available
No ecological data are available
Collections (6 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Middle Miocene | Japan | Mesophyllum erubescens (70064) | |
| Badenian | Romania | Mesophyllum erubescens (198873) | |
| Middle Pleistocene | French Polynesia (Tahiti) | Mesophyllum erubescens (127258) | |
| Middle Pleistocene - Late/Upper Pleistocene | French Polynesia (Tahiti) | Mesophyllum erubescens (127220) | |
| Late/Upper Pleistocene | French Polynesia | Mesophyllum erubescens (104933) | |
| Holocene | Papua New Guinea (Morobe) | Mesophyllum erubescens (97438) |