Major Groups > Stinkhorns > Blumenavia angolensis

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Blumenavia angolensis

[ Agaricomycetes > Phallales > Phallaceae > Blumenavia . . . ]

by Michael Kuo

Originally described from Angola, this interesting stinkhorn began to be documented in the Houston, Texas area in the early nineties; it may have been introduced through Houston shipping from the Caribbean, South America, or Africa. On casual inspection it looks like a white version of Clathrus columnatus, but its spore slime is produced in conspicuous membranous "glebifers" that are attached to the inner surfaces of the arms.

Description:

Ecology: Saprobic; growing alone or gregariously--often near stumps or woody debris; Texas, the Caribbean, South America, and Africa; fruiting nearly year-round.

Fruiting Body: When young appearing like a whitish to brown or black "egg," but soon "hatching" and developing into a cage-like structure measuring up to 10 cm high and 4 cm wide; oval in shape, composed of 3-5 unbranched, white arms that are joined at the top; arms about 1-1.5 cm wide, in cross-section more or less triangular or four-sided, with the outer surface fairly flat (lacking a pronounced longitudinal groove) and the inner surfaces more rough, punctuated by membranous flaps of tissue; the edges between outer and inner surfaces often appearing jagged or "toothed"; spore slime dark brown, produced on the flaps on the inner surfaces of the arms over roughly the top half of the structure; bases of arms free, but encased in a whitish to dark gray, dark brown, or nearly black volva; base attached to prominent white rhizoids.

Microscopic Features: Spores 3-4 x 1-1.5 µ; cylindric; smooth; hyaline in KOH.


REFERENCES: (Welwitsch & Currey, 1870) Dring, 1980. (Saccardo, 1888; Dring, 1980; Metzler & Metzler, 1992; Vargas-Rodriguez & Vázquez-García, 2005.) Herb. Kuo 02211201.


Thanks to Tom Taroni for collecting, documenting, and preserving a collection of Blumenavia angolensis for study; his collection is deposited in The Herbarium of Michael Kuo.


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Blumenavia angolensis

Blumenavia angolensis

Blumenavia angolensis

Blumenavia angolensis

Blumenavia angolensis
Spores



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Cite this page as:

Kuo, M. (2012, February). Blumenavia angolensis. Retrieved from the MushroomExpert.Com Web site: http://www.mushroomexpert.com/blumenavia_angolensis.html