Hydnum repandum
| Hydnum repandum | |
|---|---|
 |
|
| Scientific classification | |
| Kingdom: | Fungi |
| Division: | Basidiomycota |
| Class: | Agaricomycetes |
| Order: | Cantharellales |
| Family: | Hydnaceae |
| Genus: | Hydnum |
| Species: | H. repandum |
| Binomial name | |
|
Hydnum repandum L. (1753) |
|
| Synonyms | |
| Hydnum repandum | |
|---|---|
| Mycological characteristics | |
 |
teeth on hymenium |
 |
cap is depressed |
 |
hymenium is decurrent |
 |
stipe is bare |
 
|
spore print is white to cream |
 |
ecology is mycorrhizal |
 |
edibility: choice |
| Nutritional value per 100 g (3.5 oz) | |
|---|---|
| Energy | 1,431 kJ (342 kcal) |
|
4.3 g
|
|
|
19.7 g
|
|
| Vitamins | |
| Vitamin C |
(1%)
1.1 mg |
| Minerals | |
| Calcium |
(60%)
600 mg |
| Iron |
(292%)
38 mg |
| Magnesium |
(65%)
230 mg |
| Manganese |
(1105%)
23.2 mg |
| Potassium |
(0%)
2.89 mg |
| Sodium |
(2%)
31.9 mg |
| Zinc |
(60%)
5.72 mg |
|
|
| Percentages are roughly approximated using US recommendations for adults. Source: USDA Nutrient Database |
|
spore print is white
Hydnum repandum, commonly known as the sweet tooth, wood hedgehog or hedgehog mushroom, is an edible mushroom with no poisonous lookalikes. A basidiomycete fungus of the family Hydnaceae, it is the type species of the genus Hydnum. The fungus produces fruit bodies (mushrooms) that are characterized by their spore-bearing structures—in the form of spines rather than gills—which hang down from the underside of the cap. The cap is dry, colored yellow to light orange to brown, and often develops an irregular shape, especially when it has grown closely crowded with adjacent fruit bodies. The mushroom tissue is white with a pleasant odor and a spicy or bitter taste. All parts of the mushroom stain orange with age or when bruised.
A mycorrhizal fungus, Hydnum repandum is broadly distributed in Asia, Australia, North America and Europe where it fruits singly or in close groups in coniferous or deciduous woodland. This is a choice edible species, although mature specimens can develop a bitter taste. Mushrooms are collected and sold in local markets of Europe, Mexico, and Canada.
First officially described by Carl Linnaeus in his 1753 Species Plantarum, Hydnum repandum was sanctioned by Elias Fries in 1821. The species has been shuffled to several genera: Hypothele by Jean-Jacques Paulet in 1812; Dentinum by Samuel Frederick Gray in 1821; Tyrodon by Petter Karsten in 1881 Sarcodon by Lucien Quélet in 1886. After a 1977 nomenclatural proposal by mycologist Ronald H. Petersen was accepted, Hydnum repandum became the official type species of the genus Hydnum. Previously, supporting arguments for making H. repandum the type were made by Marinus Anton Donk (1958) and Petersen (1973), while Zdeněk Pouzar (1958) and Kenneth Harrison (1971) thought that H. imbricatum should be the type.
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