Red Cage (Clathrus ruber)
Rarely seen in Britain, C. ruber is a striking and unforgettable species, which was first recorded in Britain from the Isle of Wight in 1844 (British Mycological Society, FRDBI Database, 2017).
Like its close relative the Devil’s Fingers C. archeri, C. ruber emerges from a partly buried, grey-white, gelatinous, uneven, egg-shaped, volva. As the ‘egg’ ruptures, the fruiting body rises and expands to reveal a pale salmon-orange to reddish-orange, hollow, fragile, cage-like network of connecting spongy branches. They erupt and then collapse in little more than 24 hours. Within two or three days all signs of the fruitbody have generally disappeared. The inner surface is lined with a sticky, greenish, fetid gleba, smelling of faeces, carrion or rotten meat which is designed to attract flies, such as the Calliphora sp. in the top image above, which are the primary agents of spore dispersal.
In France this strange stinkhorn is known as Coeur de Sorcière, the Sorcerer’s Heart, which I must say I rather like.
Buczacki, S., Shields, C. and Ovenden, D. (2012). Collins Fungi Guide: The most complete field guide to the mushrooms and toadstools of Britain & Ireland. London: HarperCollins, p. 448, fig. p. 449.
O’Reilly, P. (2016). Fascinated by Fungi – exploring the majesty and mystery, facts and fantasy of the quirkiest kingdom on earth. Llandysul: First Nature, p. 304.
Phillips, R. (2006). Mushrooms. London: Pan Macmillan, p. 339, fig. g.
Sterry, P. and Hughes. B. (2009). Collins Complete Guide to British Mushrooms and Toadstools. London: HarperCollins, p. 244, fig. p. 245.
Stijve, T. (1997). Close Encounters with Clathrus ruber, the latticed stinkhorn. Australasian Mycological Newsletter, 16(1), pp. 11-15.