Pannaria streimannii
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| Pannaria streimannii | |
|---|---|
Scientific classification  | |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Lecanoromycetes |
| Order: | Peltigerales |
| Family: | Pannariaceae |
| Genus: | Pannaria |
| Species: | P. streimannii |
| Binomial name | |
| Pannaria streimannii Elvebakk (2012) | |
 | |
Pannaria streimannii is a species of lichen-forming fungus in the family Pannariaceae.[1] It is a foliose lichen with broad, leaf-like lobes, forming loose mats on stems and rocks in the high-elevation vegetation of Lord Howe Island. The species produces abundant phyllidia, small leaf-like outgrowths that act as vegetative propagules, allowing it to spread without forming sexual fruiting bodies. It was formally described in 2012 and is endemic to Lord Howe Island. It occurs at high elevation on Mount Gower and is known from only a small number of records.
Pannaria streimannii was described as a new species in 2012 by the Norwegian lichenologist Arve Elvebakk, from material collected on Lord Howe Island (New South Wales, Australia). The holotype was gathered on 11 February 1995 from the summit area of Mount Gower at 820 m elevation, where it grew on the stem of the small tree Atractocarpus stipularis. In the original diagnosis, it was described as similar to Pannaria howeana, but differing in its lack of apothecia and in producing phyllidia (small, leaf-like outgrowths that act as vegetative propagules).[2]
The species is named in honour of Heinar Streimann (1938–2001), who collected the type material and studied Australasian bryophyte and lichen diversity. P. streimannii was treated as a phyllidiate counterpart of P. howeana. The two were considered closely related and reported to share a secondary-chemistry pattern, with porphyrilic acid together with vicanicin and leprolomin.[2]