Red Stinkhorn Fungus

Appearance

Immature specimens of "Phallus rubicundus" are spherical to egg-shaped, whitish, and measure 2–3 cm long by 1–3 cm wide. They occur singly or in groups of two to six eggs that are formed from a common mycelium. They are attached to the substrate by a cordlike rhizomorph. After expanding, the fruit bodies are up to 15 cm tall, and consist of a hollow cylindrical stalk supporting a conical to bell-shaped cap. The orange to scarlet stalk tapers towards to top, and has a pitted surface. The wrinled cap is scarlet red, and measures 2–3 cm high by 1–2 cm wide. It is initially covered with a foetid, slimy grayish-olive gleba. The egg case remains at the base of the stalk as a volva. The spores are smooth, elliptical, and measure 3.6–4.2 by 1.6–2.0 μm.

"Phallus rubicundus" is often confused with the similar "Mutinus elegans", but the latter species does not have a clearly separated cap, and instead bears its gleba on the apex of its pointed stalk.

Distribution

The fungus is saprobic, and grows in sandy soils, lawns, gardens, and yards, especially those that are well-manured or use wood mulch. It is widely distributed in southern and eastern United States, having possibly been spread through the use of imported wood mulch in landscaping. In Australia it grows mainly in the tropics and subtropics, in areas where rotten wood and/or mulch are present. In Asia, it has been recorded from China, Japan, Korea, India, and Thailand. African locales include Ghana, Nigeria, Congo, Kenya, and South Africa. It is also known from South America and the Caribbean. The fungus was featured on a Sierra Leonean postage stamp in 1993.

Habitat

The fungus is saprobic, and grows in sandy soils, lawns, gardens, and yards, especially those that are well-manured or use wood mulch. It is widely distributed in southern and eastern United States, having possibly been spread through the use of imported wood mulch in landscaping. In Australia it grows mainly in the tropics and subtropics, in areas where rotten wood and/or mulch are present. In Asia, it has been recorded from China, Japan, Korea, India, and Thailand. African locales include Ghana, Nigeria, Congo, Kenya, and South Africa. It is also known from South America and the Caribbean. The fungus was featured on a Sierra Leonean postage stamp in 1993.

Uses

In the Indian state of Madhya Pradesh, where it is known locally as"jhiri pihiri", it is used by two primitive forest tribes, the Bharia and the Baiga, as a treatment against typhoid, and also by the Baiga to treat labour pain. The fungus is prepared by grinding and mixing with sugar-cake, and one teaspoon is administered three times daily. The fungus has been reported to have been used by Aboriginal Australians as an aphrodisiac.

One study noted that mosquitoes, attracted to the smell of the gleba, perish after consuming it, and so the fungus may be suitable for further investigating as a biocontrol agent.