VOUCHER INFORMATION
Name: Amanita onusta
Authority: (Howe) Sacc. 1891
Vouchered by: Brad Bomanz
Date found: 7/1/2006
Synonyms:
Collected by: Brad Bomanz
Voucher ID:25
Confirming Mycologist: Dr. Andrew Methven
LOCATION
Latitude: 038.621 N
Longitude: 090.696 W
City: Wildwood
County: St. Louis
State: Missouri
Site location: Babler State Park
ENVIRONMENT
Habitat: hillside - wooded
Moisture conditions: moist
Substrate: humus
IDENTIFYING DOCUMENT
Reference document: Mushrooms of Northeastern North America - 1997
Author:Alen E. Bessette, Arleen R. Bessette, David W. Fischer
ISBN No: 0-8156-2707-6
Page no:65
SPORE DESCRIPTION
Spore length: 9 - 9.5 microns
Spore width: 7 - 7.5 microns
Spore color: hyaline
Spore texture: smooth
Spore shape: broadly elliptic
Spore print color: white
Chemical reaction: n/d
A very distinctive species. The stem can be very deeply radicating in loose, rich soil. The spore size is larger than the text indicates, but I rechecked it several times. Close examination by Dr. Methven (see annotation above) confirmed that this specimen is Amanita onusta.