Punctelia guanchica

Ciri dan struktur

The thallus of Punctelia guanchica is foliose, measuring 3 – 4 cm across, and is closely attached to its substrate. The lobes comprising the thallus are rotund, 2 – 4 mm wide, with entire margins. The upper surface of the thallus is whitish grey, often bordered by a narrow, brown margin. It has a network-like (reticulate) pattern of wrinkles near the margin of lobes, and has pseudocyphellae and isidia. The pseudocyphellae are laminal (superficial on the surface), point-like (punctiform) to elongated, and up to 0.5 mm in size. They are more distinct near the periphery of the lobes. The isidia are laminal, and develop from the centre of pseudocyphellae. They are thick, short, and up to 0.5 mm tall. With a branching pattern that ranges from simple to coral-like, they occur in groups, and are rarely flattened in the centre of thallus. The medulla is white. The lower surface is white with a pale margin. The rhizines, which are about 1 mm long, are simple (i.e., unbranched), and the same colour as the lower surface. The photobiont partner is a trebouxioid green alga. Apothecia and conidia have not been observed in this species. Some standard lichen spot tests can be used to help confirm the identify of Punctelia guanchica. The cortex is K+ yellow; the medulla is K−, C+ rose, KC+ red, and PD−. These test indicate the presence of the secondary chemicals atranorin and lecanoric acid.

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Rujukan: [1]

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Habitat dan peran ekologis

Punctelia guanchica is a species of foliose lichen in the family Parmeliaceae that is only known from the Canary Islands. It is similar in appearance and morphology to the North American Punctelia rudecta, and was historically misidentified as that species until molecular phylogenetic evidence showed it to be a distinct species. It differs in having thicker isidia that develop from the centre of the pseudocyphellae, and it mainly grows on rocks.

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Rujukan: [1]

Habitat atau konteks temuan

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Substrat

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Peran atau konteks

Pembentuk liken

Reproduksi

The thallus of Punctelia guanchica is foliose, measuring 3 – 4 cm across, and is closely attached to its substrate. The lobes comprising the thallus are rotund, 2 – 4 mm wide, with entire margins. The upper surface of the thallus is whitish grey, often bordered by a narrow, brown margin. It has a network-like (reticulate) pattern of wrinkles near the margin of lobes, and has pseudocyphellae and isidia. The pseudocyphellae are laminal (superficial on the surface), point-like (punctiform) to elongated, and up to 0.5 mm in size. They are more distinct near the periphery of the lobes. The isidia are laminal, and develop from the centre of pseudocyphellae. They are thick, short, and up to 0.5 mm tall.

Sebagian uraian ditampilkan dalam bahasa sumber; terjemahannya belum tersedia atau belum lolos pemeriksaan.

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 Punctelia guanchica dari Wikimedia Commons. The lichen Punctelia guanchica Alors, A.Crespo & Divakar, described as a new species in 2016. Known only from the Canary Islands. Identifikasi mengikuti record berkas sumber.

Jenis

Fotografi

Kredit

photographer not credited

Lisensi

CC BY-SA 4.0

Sumber media

Buka entri sumber

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

Sumber profil

1. [1] Punctelia guanchica — Wikipedia (en)Bagian sumber: Frozen revision 1314750897
   Tanggal penghimpunan sumber: 2026-10-12
   Teks sumber: CC BY-SA4.0 · Wikipedia contributors
2. [2] Catalogue of Life Base2026-09-11 — Punctelia guanchicaBagian sumber: ColDP NameUsage.tsv ID 4QHNF; accepted species; source 2073
   Tanggal penghimpunan sumber: 2026-10-12
3. [3] Dokumentasi visual — Punctelia guanchicaBagian sumber: Individual media record; identification follows the source, not independent determination
   Tanggal penghimpunan sumber: 2026-10-12
   Media sumber: CC BY-SA 4.0 · photographer not credited