Lepraria xerophila

Ciri dan struktur

Lepraria xerophila has a thallus that is highly variable, usually (crust-like) and rarely (scaly). It forms compact, defined rosettes up to 2 cm in diameter, with marginal that are 2 to 3 millimeters (mm) wide and about 0.3 mm thick, having rounded tips and a distinctly raised margin up to 0.5 mm thick. These rosettes often merge with other neighbouring thalli to create a coarse, irregularly spreading, nearly continuous crust that can extend up to a decimeter or more in width. The upper surface of the thallus ranges from whitish-gray to pale yellowish-gray, with a texture that varies from smooth to rough. It supports numerous fragile (small lobes) that can be horizontal to vertical, regular to irregular, and easily detached. These lobules act as diaspores (reproductive structures) and evolve partly by budding off from the lobe margins, partly from the upper surface, and possibly from disintegrating lobes. Soredia (powdery reproductive structures) are few or absent. In thick specimens, the medulla (inner layer) is distinct and white. The (photosynthetic partner) is organized in roughly spherical groups, 24–50 μm in diameter, within the diaspores and forms a nearly continuous layer just beneath the thallus surface. The lower surface is whitish-gray and lacks a tomentum (a covering of fine hairs). Spot tests on this lichen yield the following results: K−, C−, KC−, and P+. The secondary metabolites present in Lepraria xerophila vary by chemotype. Chemotype I (most specimens) contains minor atranorin, major pannaric acid 6-methyl ester, usually major roccellic or rangiformic acids, and possibly trace amounts of methyl porphyrilate, pannaric, and porphyrilic acids.

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Rujukan: [1]

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

Habitat dan peran ekologis

Lepraria xerophila typically grows on dry soil, though it is occasionally found on bare rock and on wood. It thrives in various habitats including grasslands, coastal scrubland, chaparral, and areas transitioning to desert. It is also present in mixed oak-chaparral-pasture regions and oak forests. Geographically, this lichen is found in Europe, where only chemotype I is present. In North America, it is distributed along the Pacific coast, from Mexico up to Marin County, California.

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Rujukan: [1]

Habitat atau konteks temuan

hutan; padang rumput

Substrat

kayu

Peran atau konteks

Pembentuk liken

Reproduksi

The upper surface of the thallus ranges from whitish-gray to pale yellowish-gray, with a texture that varies from smooth to rough. It supports numerous fragile (small lobes) that can be horizontal to vertical, regular to irregular, and easily detached. These lobules act as diaspores (reproductive structures) and evolve partly by budding off from the lobe margins, partly from the upper surface, and possibly from disintegrating lobes. Soredia (powdery reproductive structures) are few or absent.

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 Lepraria xerophila dari Wikimedia Commons. Conejo Mountain, Santa Monica Mountains, southern California, 20111019 Identifikasi mengikuti record berkas sumber.

Jenis

Fotografi

Kredit

Jason Hollinger

Lisensi

CC BY 2.0

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] Lepraria xerophila — Wikipedia (en)Bagian sumber: Frozen revision 1321856892
   Tanggal penghimpunan sumber: 2026-10-12
   Teks sumber: CC BY-SA4.0 · Wikipedia contributors
2. [2] Catalogue of Life Base2026-09-11 — Lepraria xerophilaBagian sumber: ColDP NameUsage.tsv ID 3TGJW; accepted species; source 2073
   Tanggal penghimpunan sumber: 2026-10-12
3. [3] Dokumentasi visual — Lepraria xerophilaBagian sumber: Individual media record; identification follows the source, not independent determination
   Tanggal penghimpunan sumber: 2026-10-12
   Media sumber: CC BY 2.0 · Jason Hollinger