Morchella sextelata

Ciri dan struktur

The fruit bodies of Morchella sextelata are 4 – 10.5 cm high with a conical cap that is 2.5 – 7.5 cm high and 2 – 5 cm wide at the widest point. The cap surface features pits and ridges, formed by the intersection of 12–20 primary vertical ridges and frequent shorter, secondary vertical ridges, with occasional sunken, horizontal ridges. The cap is attached to the stipe with a sinus about 2–4 mm deep and 2–4 mm wide. The ridges are smooth or very finely tomentose (covered with densely matted filaments). They are initially colorless, becoming pale tan, then dark grayish brown in maturity, eventually darkening to nearly black. They are flattened when young but sometimes become sharpened or eroded in maturity. The pits are somewhat elongated vertically. They are smooth, brownish to yellowish tan to pinkish to buff. The whitish to pale brownish stipe is 2 – 5 cm long by 1.0 – 2.2 cm wide and is roughly equal in width throughout its length, or sometimes slightly club-shaped near the base. Its surface is either smooth or covered with whitish granules. The flesh is whitish, measuring 1–2 mm thick in the hollow cap; it may become layered and chambered in the base of the stipe. The sterile inner surface of the cap is whitish and pubescent (covered with short, soft "hair"). The ascospores of M. sextelata are elliptical and smooth, typically measuring 18–25 by 10–16 μm. Asci (spore-bearing cells) are eight-spored, hyaline (translucent), cylindrical, and measure 200–325 by 5–25 μm. Paraphyses are cylindrical, septate, and measure 175–300 by 2–15 μm. Their tips are variably shaped, from rounded, to club-shaped, to fuse-shaped.

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Rujukan: [1]

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Habitat dan peran ekologis

Morchella sextelata may be either saprobic or mycorrhizal at different times in its life cycle. Its fruit bodies grow in partially burned conifer forests, particularly those dominated by Douglas-fir (Pseudotsuga menziesii) and ponderosa pine (Pinus ponderosa). They tend to appear in great numbers the year immediately following fire and appear in decreasing frequency in successive years. Fruiting occurs from April through July, at elevations between 1000 and 1500 m. The distribution includes Washington, Idaho, Montana, Wyoming, and Yukon Territory. M. sextelata has also been found in China, but it remains unclear whether dispersal between these distant locations occurred naturally or through accidental introduction by humans. Morchella sextelata, identified as phylogenetic species "Mel-6", has been shown to colonize the non-native species Bromus tectorum (cheatgrass) as an endophyte, increasing the overall growth of the grass, as well as the abundance of seeds and their tolerance to extreme heat (60 – 65 C). This has been hypothesized to be a contributing factor in the success of cheatgrass as an invasive species in western North America. It is one of four species of wildfire-adapted morels in western North America, the others being M. capitata, M. septimelata, and M. tomentosa.

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Rujukan: [1]

Habitat atau konteks temuan

hutan

Substrat

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Peran atau konteks

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Reproduksi

The ascospores of M. sextelata are elliptical and smooth, typically measuring 18–25 by 10–16 μm. Asci (spore-bearing cells) are eight-spored, hyaline (translucent), cylindrical, and measure 200–325 by 5–25 μm. Paraphyses are cylindrical, septate, and measure 175–300 by 2–15 μm. Their tips are variably shaped, from rounded, to club-shaped, to fuse-shaped. The contents of the paraphyses are hyaline (translucent) to faintly brownish in dilute potassium hydroxide (KOH). Hyphae on the sterile cap ridges are septate and measure 50–180 by 5–25 μm. The terminal cells are variably shaped (similar to the paraphyses), and have brownish contents in KOH.

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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 Morchella sextelata menurut asosiasi foto pada record takson iNaturalist. Kredit: Alan Rockefeller. Identitas mengikuti sumber; bukan penentuan spesimen independen.

Jenis

Fotografi

Kredit

(c) Alan Rockefeller, some rights reserved (CC BY), uploaded by Alan Rockefeller

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.

Dokumentasi tambahan

Sumber profil

1. [1] Morchella sextelata — Wikipedia (en)Bagian sumber: Frozen revision 1376498588
   Tanggal penghimpunan sumber: 2026-10-12
   Teks sumber: CC BY-SA4.0 · Wikipedia contributors
2. [2] Catalogue of Life Base2026-09-11 — Morchella sextelataBagian sumber: ColDP NameUsage.tsv ID 44CRN; accepted species; source 2073
   Tanggal penghimpunan sumber: 2026-10-12
3. [3] Dokumentasi visual — Morchella sextelataBagian sumber: Identitas mengikuti sumber dokumentasi; bukan penentuan spesimen independen.
   Tanggal penghimpunan sumber: 2026-10-17
   Media sumber: CC BY 4.0 · (c) Alan Rockefeller, some rights reserved (CC BY), uploaded by Alan Rockefeller
4. [4] Dokumentasi visual — Morchella sextelataBagian sumber: Identitas mengikuti sumber dokumentasi; bukan penentuan spesimen independen.
   Tanggal penghimpunan sumber: 2026-10-17
   Teks sumber: CC BY-SA 4.0 · (c) pinonbistro, some rights reserved (CC BY-SA), uploaded by pinonbistro
5. [5] Dokumentasi visual — Morchella sextelataBagian sumber: Identitas mengikuti sumber dokumentasi; bukan penentuan spesimen independen.
   Tanggal penghimpunan sumber: 2026-10-17
   Teks sumber: CC BY-SA 4.0 · (c) pinonbistro, some rights reserved (CC BY-SA), uploaded by pinonbistro