01 / Morfologi

Ciri dan struktur

Lecanactis abietina forms a thin, (spreading) thallus that is mauve-grey to whitish grey. Sexual fruiting bodies (apothecia) are not always present. When they occur they are circular, 0.7–2 mm across, and sit on or are closely pressed to the surface ( to ). The brown-black is thickly dusted with a yellow-grey, frost-like bloom () and is bordered by a prominent, persistent rim of fungal tissue (a ). Ascospores are slender—spindle- to needle-shaped, usually slightly curved—and have 3 (occasionally 4) internal cross-walls, measuring 28–40 × 3–6 μm. Asexual structures (pycnidia) are numerous and evenly scattered as tiny, cylindrical, knob-like dots 0.2–0.3 mm in diameter with white-pruinose tips. Their walls are 25–50 μm thick, dark brown in water and turning green-black with potassium hydroxide solution (the K test). The spore-producing cells inside (conidiogenous cells) are 8–12 × 1.9–2.4 μm and release cylindrical conidia 12–17 × 2–3 μm. In standard spot tests, the pycnidial pruina reacts C+ (red), but is K−. The apothecial pruina and thallus are C−, K−, KC− and Pd−, yet show a bright blue fluorescence after K followed by ultraviolet (K/UV+). The inner tissue (medulla) fluoresces yellow to glaucous grey under long-wave UV, reflecting the presence of lecanoric and schizopeltic acids along with other UV-reactive substances. Among the corticolous (bark-dwelling) species of the genus, Lecanactis abietina is distinguished by the combination of schizopeltic acid in the thallus, conspicuous cylindrical pycnidia with C+ (red) apices, and relatively long, narrow, 3-septate ascospores.

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Rujukan: [1]

Pengukuran mengikuti objek, spesimen atau kultur, dan metode yang disebutkan sumber. Baca uraian asli untuk konteks lengkap.

02 / Kehidupan

Habitat dan peran ekologis

Lecanactis abietina grows on both deciduous and coniferous trees, typically in shaded, humid habitats, and is characteristic of old trees and old forests in cool temperate regions. In Norway it behaves as a mainly coastal, suboceanic species, being especially frequent in humid coastal spruce forests. Although it often grows on the shaded bases of mature spruce trunks, it also commonly occurs on mossy rock beneath overhangs, where it forms a more cushion-like thallus than it does on bark. It has been recorded on decorticate (barkless) stumps and on sheltered wood, and more occasionally on birch. More rarely it occurs on alder, hazel, pine, and oak, although in southern Scandinavia and England it has mainly been found on oak. In Tasmania, it occurs most often on the dry, flaky bark of mature Nothofagus cunninghamii in cool temperate rainforest, where it grows alongside Lecanactis mollis and a diverse assemblage of crustose lichens, including taxa. In lowland eastern and east-central Europe, L. abietina is associated with older forests that have remained continuously wooded for long periods. Within that region it is concentrated in maritime areas but becomes more scattered inland, where it is even more closely confined to old-growth stands.

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Rujukan: [1]

Habitat atau konteks temuan
hutan
Substrat
kulit kayu
Peran atau konteks
Pembentuk liken
Temukan hubungan serupa
03 / Siklus hidup

Reproduksi

Lecanactis abietina forms a thin, (spreading) thallus that is mauve-grey to whitish grey. Sexual fruiting bodies (apothecia) are not always present. When they occur they are circular, 0.7–2 mm across, and sit on or are closely pressed to the surface ( to ). The brown-black is thickly dusted with a yellow-grey, frost-like bloom () and is bordered by a prominent, persistent rim of fungal tissue (a ). Ascospores are slender—spindle- to needle-shaped, usually slightly curved—and have 3 (occasionally 4) internal cross-walls, measuring 28–40 × 3–6 μm. Asexual structures (pycnidia) are numerous and evenly scattered as tiny, cylindrical, knob-like dots 0.2–0.3 mm in diameter with white-pruinose tips.

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

Rujukan: [1]

Sinonim menurut acuan taksonomi rilis: Biatora abietina; Bilimbia abietina; Bilimbia abietina f. incrustans; Calicium variolosum leucocephalum; Chiodecton pericleum; Cyphelium abietinum; Cyphelium incrustans; Cyphelium leucocephalum; Lecanactis abietina f. incrustans; Lecanactis periclea; Lecanactis premnea var. incrustans; Lecanora periclea; Lecidea abietina; Lecidea abietina f. incrustans; Lecidea abietina var. incrustans; Lecidea leucocephala; Lichen abietinus; Lichen peltatus abietina; Lichen pericleus; Opegrapha abietina; Parmelia periclea; Phoma abietinae; Platygrapha periclea; Pyrenotea incrustans; Pyrenotea leucocephala; Pyrenotea leucocephala var. incrustans; Pyrenula leucocephala; Rinodina exigua var. periclea; Rinodina periclea; Schismatomma abietinum; Schismatomma abietinum f. incrustans; Schismatomma pericleum; Variolaria leucocephala; Verrucaria abietina; Verrucaria incrustans; Verrucaria leucocephala
04 / Batas informasi

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.

05 / Dokumentasi

Melihat dengan konteks

Dokumentasi Lecanactis abietina menurut asosiasi foto pada record takson iNaturalist. Kredit: Ditte Grube Barild. Identitas mengikuti sumber; bukan penentuan spesimen independen.

Jenis
Fotografi
Kredit
(c) Ditte Grube Barild, some rights reserved (CC BY), uploaded by Ditte Grube Barild
Lisensi
CC BY 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.

06 / Rujukan

Sumber profil

  1. [1] Lecanactis abietina — Wikipedia (en)Bagian sumber: Frozen revision 1376718317
    Tanggal penghimpunan sumber: 2026-10-12
    Teks sumber: CC BY-SA4.0 · Wikipedia contributors
  2. [2] Catalogue of Life Base2026-09-11 — Lecanactis abietinaBagian sumber: ColDP NameUsage.tsv ID 3SQY6; accepted species; source 2073
    Tanggal penghimpunan sumber: 2026-10-12
  3. [3] Dokumentasi visual — Lecanactis abietinaBagian sumber: Individual media record; identification follows the source, not independent determination
    Tanggal penghimpunan sumber: 2026-10-12
    Media sumber: CC BY 4.0 · (c) Ditte Grube Barild, some rights reserved (CC BY), uploaded by Ditte Grube Barild

Adaptasi teks: CC BY-SA 4.0. Wikipedia contributors — Lecanactis abietina — Wikipedia (en)

Uraian asli dan riwayat sumber

Riwayat atau halaman sumber

Ringkasan sumber

Lecanactis abietina, the old-wood lichen, is a species of leprose lichen in the family Roccellaceae. It forms a thin, mauve-grey to whitish-grey crust on the bark of both deciduous and coniferous trees, typically in shaded, humid habitats, and is regarded as characteristic of old-growth forests in cool temperate regions. The species is widespread in northern and central Europe and also occurs in North America, Australasia, and Papua New Guinea. Its nomenclatural history played a central role in the conservation of the genus Lecanactis, for which it serves as the type species.

Revisi sumber

Morfologi sumber

Lecanactis abietina forms a thin, (spreading) thallus that is mauve-grey to whitish grey. Sexual fruiting bodies (apothecia) are not always present. When they occur they are circular, 0.7–2 mm across, and sit on or are closely pressed to the surface ( to ). The brown-black is thickly dusted with a yellow-grey, frost-like bloom () and is bordered by a prominent, persistent rim of fungal tissue (a ). Ascospores are slender—spindle- to needle-shaped, usually slightly curved—and have 3 (occasionally 4) internal cross-walls, measuring 28–40 × 3–6 μm. Asexual structures (pycnidia) are numerous and evenly scattered as tiny, cylindrical, knob-like dots 0.2–0.3 mm in diameter with white-pruinose tips. Their walls are 25–50 μm thick, dark brown in water and turning green-black with potassium hydroxide solution (the K test). The spore-producing cells inside (conidiogenous cells) are 8–12 × 1.9–2.4 μm and release cylindrical conidia 12–17 × 2–3 μm. In standard spot tests, the pycnidial pruina reacts C+ (red), but is K−. The apothecial pruina and thallus are C−, K−, KC− and Pd−, yet show a bright blue fluorescence after K followed by ultraviolet (K/UV+). The inner tissue (medulla) fluoresces yellow to glaucous grey under long-wave UV, reflecting the presence of lecanoric and schizopeltic acids along with other UV-reactive substances. Among the corticolous (bark-dwelling) species of the genus, Lecanactis abietina is distinguished by the combination of schizopeltic acid in the thallus, conspicuous cylindrical pycnidia with C+ (red) apices, and relatively long, narrow, 3-septate ascospores.

Revisi sumber

Ekologi sumber

Lecanactis abietina grows on both deciduous and coniferous trees, typically in shaded, humid habitats, and is characteristic of old trees and old forests in cool temperate regions. In Norway it behaves as a mainly coastal, suboceanic species, being especially frequent in humid coastal spruce forests. Although it often grows on the shaded bases of mature spruce trunks, it also commonly occurs on mossy rock beneath overhangs, where it forms a more cushion-like thallus than it does on bark. It has been recorded on decorticate (barkless) stumps and on sheltered wood, and more occasionally on birch. More rarely it occurs on alder, hazel, pine, and oak, although in southern Scandinavia and England it has mainly been found on oak. In Tasmania, it occurs most often on the dry, flaky bark of mature Nothofagus cunninghamii in cool temperate rainforest, where it grows alongside Lecanactis mollis and a diverse assemblage of crustose lichens, including taxa. In lowland eastern and east-central Europe, L. abietina is associated with older forests that have remained continuously wooded for long periods. Within that region it is concentrated in maritime areas but becomes more scattered inland, where it is even more closely confined to old-growth stands.

Revisi sumber

Struktur reproduksi sumber

Lecanactis abietina forms a thin, (spreading) thallus that is mauve-grey to whitish grey. Sexual fruiting bodies (apothecia) are not always present. When they occur they are circular, 0.7–2 mm across, and sit on or are closely pressed to the surface ( to ). The brown-black is thickly dusted with a yellow-grey, frost-like bloom () and is bordered by a prominent, persistent rim of fungal tissue (a ). Ascospores are slender—spindle- to needle-shaped, usually slightly curved—and have 3 (occasionally 4) internal cross-walls, measuring 28–40 × 3–6 μm. Asexual structures (pycnidia) are numerous and evenly scattered as tiny, cylindrical, knob-like dots 0.2–0.3 mm in diameter with white-pruinose tips.

Revisi sumber

Rujukan halaman ini

Fungi. Lecanactis abietina. Rilis data fungi-2026-10-12-expansion-2. https://fungi-atlas.mgadib.chatgpt.site/jamur/lecanactis-abietina/.

Status: impor sumber; pemeriksaan editorial per profil belum selesai. Untuk klaim biologis, gunakan rujukan pada bagian terkait dan periksa konteks sumber aslinya.