Ciri dan struktur
Pyrenocollema elegans is characterized by its distinctive thallus, which forms rosettes up to 10 mm in diameter. These rosettes may appear either as isolated formations or merge together to create a continuous spread. The thallus has a thin, dark brown base layer that is marked by distinctive black warts measuring 0.1–0.3 mm across, and ridges extending up to 0.15 by 0.7 mm. At the thallus periphery, these ridges form a radiating pattern and appear flattened, while in the central regions, they become more irregular. While typically flat, these ridges can occasionally become raised and sharp, reaching heights of 35–50 μm. The species produces scattered (reproductive structures) that are usually sparse but can occasionally be abundant. These perithecia measure 0.1–0.5 mm in diameter and are prominently displayed, with an irregularly somewhat shape featuring a flattened to concave top that can sometimes appear deeply . The internal structure reveals a thallus thickness of 20–50 μm, composed primarily of vertical rows of angular to rounded cells. The is a cyanobacterium with yellowish-brown cells measuring 3–5.5 μm in diameter. The reproductive characteristics include asci that are , , or nearly cylindrical, measuring 40–60 by 12–18 μm. The paraphyses are persistent, branched, and anastomosing, approximately 1 μm thick with sparse septation. Each ascus typically contains 8 colourless, 1-septate spores that are ellipsoid to ovate with rounded ends. The upper cell of these spores is usually slightly broader, and they measure 11.5–20 by 3.5–7 μm, showing no constriction at the septum.
Habitat dan peran ekologis
Pyrenocollema elegans is a marine lichen that inhabits the intertidal zone of coastal areas. It shows a strong preference for siliceous seashore rocks, particularly those composed of schist or granite, though it occasionally occurs on calcareous substrates. The species typically occupies the lower littoral fringe or the uppermost section of the eulittoral zone (also known as the hydrohaline zone), where it receives regular seawater immersion. The species has a wide geographic distribution. Along the Atlantic coast of Europe, it ranges from mid-Norway southward to northern Spain. In the Pacific, it has been documented at several locations along the western coasts of North and South America, including California (USA), Peru, and Chile. While no specimens had been recorded from the Atlantic coast of North America as of 1992, its presence there was considered likely but undocumented. In its typical habitat, P. elegans frequently grows in association with barnacles – specifically Semibalanus balanoides in Norwegian waters and Chthamalus species in more southerly regions. The species shows a preference for exposed rocky areas rather than sheltered locations. While it can exist as the sole lichen species in an area, it commonly forms communities with other marine lichens including Verrucaria striatula, V. ditmarsica, V. halizoa, Wahlenbergiella mucosa, Hydropunctaria amphibia, Pyrenocollema halodytes, and P. sublitoralis.
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Reproduksi
The species produces scattered (reproductive structures) that are usually sparse but can occasionally be abundant. These perithecia measure 0.1–0.5 mm in diameter and are prominently displayed, with an irregularly somewhat shape featuring a flattened to concave top that can sometimes appear deeply . The internal structure reveals a thallus thickness of 20–50 μm, composed primarily of vertical rows of angular to rounded cells. The is a cyanobacterium with yellowish-brown cells measuring 3–5.5 μm in diameter. The reproductive characteristics include asci that are , , or nearly cylindrical, measuring 40–60 by 12–18 μm. The paraphyses are persistent, branched, and anastomosing, approximately 1 μm thick with sparse septation.
Catatan identitas dan cakupan
- Nama diterima mengikuti Catalogue of Life Base2026-09-11; uraian mempertahankan konsep dan nama sumber aslinya.
- Original geographic, specimen and life-cycle scope retained; source import awaits individual editorial review.
- Impor dan terjemahan otomatis belum diperiksa editorial per profil. Struktur reproduktif yang disebutkan tidak membuktikan seluruh siklus hidup diketahui.
- Pengukuran pada uraian mengikuti spesimen, kultur, dan metode sumber; angka tidak diperluas ke semua populasi.
Catatan distribusi dalam narasi mengikuti sumbernya. Dokumentasi spesimen atau foto mengikuti catatan sumber. Bukti wilayah Indonesia dan penilaian konservasi tidak disimpulkan dari gambar.
Melihat dengan konteks
Voucher herbarium Pyrenocollema elegans (04584022), The New York Botanical Garden. Identifikasi mengikuti record spesimen sumber. Foto bahan, kemasan, atau label herbarium sebagaimana tersedia pada record institusi; bukan foto lapangan atau penentuan spesimen independen.
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- Voucher herbarium
- Kredit
- The New York Botanical Garden
- Lisensi
- CC BY 4.0
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Sumber profil
- [1] Pyrenocollema elegans — Wikipedia (en)
- [2] Catalogue of Life Base2026-09-11 — Pyrenocollema elegans
- [3] Dokumentasi visual — Pyrenocollema elegans
Rujukan halaman ini
Fungi. Pyrenocollema elegans. Rilis data fungi-2026-10-12-expansion-2. https://fungi-atlas.mgadib.chatgpt.site/jamur/pyrenocollema-elegans/.
Status: impor sumber; pemeriksaan editorial per profil belum selesai. Untuk klaim biologis, gunakan rujukan pada bagian terkait dan periksa konteks sumber aslinya.
