Sticta canariensis

Ciri dan struktur

Sticta canariensis is distinctive for its ability to form – different morphological forms resulting from symbioses with two different types of photosynthetic partners: unicellular green algae (Symbiochloris sp. 3 from the order Trebouxiales) and cyanobacteria (Nostoc). These partnerships result in two dramatically different morphological forms of the lichen. The chloromorph (green algal form) produces bright green thalli measuring 5–15 cm in diameter. Its are elongated and dichotomously branched, each 5–15 mm wide. The lobes exhibit a characteristic subdichotomous branching pattern with truncate tips and relatively short segments between branches, with new branches typically forming at angles of 60-90 degrees. This form regularly produces reproductive structures (apothecia), which are brown in colour and measure 1–2 mm across. These apothecia can develop both on the surface (laminally) and along the edges (marginally) of the thallus. The underside of the thallus is a light to medium ochraceous-brown colour, featuring small pore-like structures (cyphellae) that blend in with the surrounding surface. The cyanomorph (cyanobacterial form) appears dark blue-grey, often featuring white mottled patterns. Its thalli can reach up to 10 cm in diameter and frequently form extensive colonies. The lobes, measuring 1–2 cm across, overlap each other and have irregularly incised margins featuring small outgrowths called phyllidia. These phyllidia are flattened, ascending structures measuring 0.5–0.8 mm, which branch dichotomously multiple times. They initially form dense clusters along the thallus margins but can also develop on the thallus surface in older specimens.

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Rujukan: [1]

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Habitat dan peran ekologis

Sticta canariensis has a disjunct distribution across temperate and subtropical regions, occurring in Atlantic Europe and Macaronesia. In Atlantic Europe, it is found in south-western England, Wales, and along the south-western coast of Norway. In Macaronesia, it occurs across the archipelagos of the Azores, Madeira, and the Canary Islands. The species is strongly associated with laurisilva forests in its Macaronesian range. These ancient forest ecosystems are considered highly vulnerable to global climate change. The species shows habitat flexibility in terms of substrate preference. While it primarily grows as an epiphyte on deciduous trees including Laurus, Fraxinus and Quercus species, it can also be found growing directly on soil and rocks, particularly on cliff faces and boulders. These terrestrial and saxicolous populations are typically found in close proximity to water sources and within cool, shaded forest environments. Genetic studies have revealed distinct population structures between the northern (England and Norway) and southern (Macaronesian) parts of its range, suggesting limited gene flow between these distant populations. Among the Macaronesian populations, those in Madeira show particularly high genetic diversity.

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Rujukan: [1]

Habitat atau konteks temuan

hutan

Substrat

tanah

Peran atau konteks

Pembentuk liken

Reproduksi

The chloromorph (green algal form) produces bright green thalli measuring 5–15 cm in diameter. Its are elongated and dichotomously branched, each 5–15 mm wide. The lobes exhibit a characteristic subdichotomous branching pattern with truncate tips and relatively short segments between branches, with new branches typically forming at angles of 60-90 degrees. This form regularly produces reproductive structures (apothecia), which are brown in colour and measure 1–2 mm across. These apothecia can develop both on the surface (laminally) and along the edges (marginally) of the thallus. The underside of the thallus is a light to medium ochraceous-brown colour, featuring small pore-like structures (cyphellae) that blend in with the surrounding surface.

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Rujukan: [1]

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.

Melihat dengan konteks

Dokumentasi Sticta canariensis menurut asosiasi foto pada record takson iNaturalist. Kredit: Ben Mitchell. Identitas mengikuti sumber; bukan penentuan spesimen independen.

Jenis

Fotografi

Kredit

no rights reserved, uploaded by Ben Mitchell

Lisensi

CC0 1.0

Sumber media

Buka entri sumber

Gambar menunjukkan objek menurut identifikasi sumber, bukan verifikasi independen spesimen oleh Fungi. Tidak ada skala baru yang ditambahkan.

Dokumentasi tambahan

Sumber profil

1. [1] Sticta canariensis — Wikipedia (en)Bagian sumber: Frozen revision 1293508122
   Tanggal penghimpunan sumber: 2026-10-12
   Teks sumber: CC BY-SA4.0 · Wikipedia contributors
2. [2] Catalogue of Life Base2026-09-11 — Sticta canariensisBagian sumber: ColDP NameUsage.tsv ID 6ZTLK; accepted species; source 2073
   Tanggal penghimpunan sumber: 2026-10-12
3. [3] Dokumentasi visual — Sticta canariensisBagian sumber: Identitas mengikuti sumber dokumentasi; bukan penentuan spesimen independen.
   Tanggal penghimpunan sumber: 2026-10-17
   Media sumber: CC0 1.0 · no rights reserved, uploaded by Ben Mitchell
4. [4] Dokumentasi visual — Sticta canariensisBagian sumber: Identitas mengikuti sumber dokumentasi; bukan penentuan spesimen independen.
   Tanggal penghimpunan sumber: 2026-10-17
   Teks sumber: CC0 1.0 · no rights reserved, uploaded by Ben Mitchell
5. [5] Dokumentasi visual — Sticta canariensisBagian sumber: Identitas mengikuti sumber dokumentasi; bukan penentuan spesimen independen.
   Tanggal penghimpunan sumber: 2026-10-17
   Teks sumber: CC BY 4.0 · (c) W Rao, some rights reserved (CC BY), uploaded by W Rao