Podaxis pistillaris

Podaxis pistillaris is a very distinctive relative of the puffballs. It grows to 15 cm high and has a hard, woody stem. The large cap, which protects the blackish spore-bearing tissue, splits, and usually falls away at maturity, allowing the spores to be dispersed by wind. Large numbers may appear after soaking rains.[1] It thrives in deserts and semi-deserts of Australia and other countries, often found on termite mounds in South Africa. [2] In the Hawaiian Islands, it is frequently encountered along roadsides and in disturbed areas on the dry sides of the islands, especially in the Kona area of Hawaii and the Kihei area of Maui.

Podaxis pistillaris
P. pistillaris
Scientific classification
Kingdom:
Fungi
Division:
Basidiomycota
Class:
Agaricomycetes
Order:
Agaricales
Family:
Agaricaceae
Genus:
Podaxis
Species:
P. pistillaris
Binomial name
Podaxis pistillaris
(L.) Fr. (as "Podaxon")
Podaxis pistillaris
float
Mycological characteristics
gills on hymenium
cap is conical
hymenium is seceding
stipe has a ring
spore print is buff to reddish-brown
ecology is saprotrophic
edibility: inedible

Older synonyms for this species include Lycoperdon pistillare L. (1771) and Scleroderma pistillare (L.) Pers. (1801).

Spores

The spores are usually 10–14 (–16) by (8–) 9–12 µm broadly oval to sub-globose, smooth yellow to deep reddish-brown with a double wall, truncate base, and apical pore. Older spore measurements have varied considerably. Species from Australian collections appear to be more subglobose than those seen from the United States, raising the possibility that the latter are not the same species.

Organisation

It is an agaric, though it has lost hymenophoral organization and the ability to forcibly discharge its basidiospores and become "secotioid".[3] Although considered by many to be a "stalked puffball", Podaxis pistillaris is more closely allied with the shaggy mane (Coprinus comatus) than with puffballs.[4]

Uses

In Australia, it was used by many desert tribes to darken the white hair in old men's whiskers and for body painting. The fungus was presumably used by many desert Aborigines due to its distribution around drier areas of Australia. There are reports of its also being used as a fly repellent. Apart from the more common, ground-inhabiting Podaxis pistillaris, there is one other Podaxis species in Australia - Podaxis beringamensis, found on termite mounds and presumably both species were used.[5]

Podaxis pistillaris is also used as food in Middle East and Mexico.

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References
  1. Fuhrer BA. (2005). Field Guide to Fungi. Bloomings Books Pty Ltd. ISBN 1-876473-51-7.
  2. https://www.researchgate.net/publication/240509762_The_Genus_Podaxis_Gasteromycetes_in_Australia_with_a_Description_of_a_New_Species_from_Termite_Mounds
  3. "California Fungi: Podaxis pistillaris". Retrieved 2008-12-04.
  4. Hopple JS, Vilgalys R. (1994). Phylogenetic relationships among coprinoid taxa and allies based on data from restriction site mapping of nuclear rDNA. Mycologia 86(1): 96-107.
  5. Arpad Kalotas in Fungi of Australia, Volume 1B. http://www.anbg.gov.au/fungi/aboriginal.html
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