Morchella punctipes
Morchella punctipes is a species of morel fungus in the family Morchellaceae. It is native to North America, found widely distributed east of the Rocky Mountains.[1] It was first found in Michigan and described scientifically by American mycologist Charles Horton Peck in 1903.[2]
| Morchella punctipes | |
|---|---|
 | |
| In North Carolina, United States | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Pezizomycetes |
| Order: | Pezizales |
| Family: | Morchellaceae |
| Genus: | Morchella |
| Species: | M. punctipes |
| Binomial name | |
| Morchella punctipes Peck (1903) | |
Morchella punctipes | |
|---|---|
 | Smooth hymenium |
 | Cap is conical |
 | Hymenium attachment is not applicable |
 | Stipe is bare |
 | Spore print is white to yellow-orange |
 | Ecology is saprotrophic or mycorrhizal |
 | Edibility is edible |
Morchella punctipes is one of three species of fungi commonly referred to as half-free morels, the others being Morchella populiphila in western North America and Morchella semilibera in Europe.[1]
They are an edible species but, like all morels, need to be cooked before they are consumed. [3]
Description
The fruit bodies of Morchella punctipes are 2.5–18 cm (1–7.1 in) tall.
The cap is glabrous, conical, or occasionally, almost convex in shape and feature ridges and round, vertical pits. Ridges are pale yellow to dull yellowish brown when young and darken to brown, dark brown, or black with maturity. Pits are whitish to pale yellowish when immature and darken to brownish to yellowish brown at maturity. Caps attach to the stipe in a skirt-like manner, roughly halfway from the apex, and grow to be 2–4.5 cm (0.8–1.8 in) tall and 2–4.5 cm (0.8–1.8 in) wide.
The stipe is equal, fragile, and white to whitish or watery brownish in color. The surface of the stipe can have shallow, longitudinal grooves, and typically features white, mealy granules. The inside of the stipe is hollow and can have chambers near the bulbous base. When young, the stipe is short and can be hidden by the cap, but gains significant length with age. The stipe grows to be 1.5–15 cm (0.6–6 in) tall and 0.8–4.5 cm (0.3–1.8 in) wide. [1]
Microscopic characteristics
The ascospores are elliptical and smooth with homogenous contents. They are 20-27 x (10-)14-18 µm in size and whitish to bright yellowish orange in deposit. Asci eight-spored; 175-350 x 15-25 µm; cylindrical; hyaline. The paraphyses are cylindrical with rounded, subcapitate, clavate, mucronate or irregularly inflated apices; septate; hyaline in KOH (2%); 120-275 x 10-22 µm. Elements on sterile ridges 50-100 x 10-25 µm; septate; tightly packed in an even layer; brownish in KOH (2%); terminal cell broadly clavate to sub-rectangular with a flattened to broadly rounded or submucronate apex. [1]
Similar species
Morchella punctipes is described to be similar to G. gigas and M. rimosipes, but unlike the two, its cap is freely attached to the stipe. It also shares similarity with M. semiliberia, but has larger spores.[2]
Distribution and habitat
Morchella punctipes are native to eastern North America and are commonly found east of the Rocky Mountains. They are found in hardwood forests, often in forests where white ash, American elm, and American tulip trees grow. Fruit bodies appear around late March in southern areas to late May in northern areas. [1]
References
- Kuo M, Dewsbury DR, O'Donnell K, Carter MC, Rehner SA, Moore JD, Moncalvo JM, Canfield SA, Stephenson SL, Methven AS, Volk TJ (11 April 2012). "Taxonomic revision of true morels (Morchella) in Canada and the United States". Mycologia. 104 (5): 1159–77. doi:10.3852/11-375. PMID 22495449. S2CID 45219627.
- Peck CH. (1903). "New species of fungi". Bulletin of the Torrey Botanical Club. 30 (2): 95–101. doi:10.2307/2478879. JSTOR 2478879.
- "Half-Free Morel". Missouri Department of Conservation. Retrieved 2023-04-26.