VOUCHER INFORMATION
Name: Lactarius indigo
Authority: (Schwein.) Fr. 1838
Vouchered by: Brad Bomanz
Date found: 6/24/2001
Synonyms:
Collected by: Gordon White
Voucher ID: 62
Confirming Mycologist: Dr. Andrew Methven
LOCATION
Latitude: N 38 31.758'
Longitude: W 090 30.799'
City: Valley Park
County: St. Louis
State: Missouri
Site location: Forest 44 Conservation Area
ENVIRONMENT
Habitat: ridge - open
Moisture conditions: dry
Substrate: soil - firm/clay
IDENTIFYING DOCUMENT
Reference document: Mushrooms of North America -1991
Author:Roger Phillips
ISBN No: 0-316-70613-2
Page no:84
SPORE DESCRIPTION
Spore length: 9 microns
Spore width: 6.3 microns
Spore color: clear
Spore texture: warted and ridged
Spore shape: elliptical to nearly round
Spore print color: cream
Chemical reaction: n/d
The concentric rings on the cap and the blue milk make this species easy to identify. Close examination by Dr. Methven (see annotation above) confirmed that this specimen is Lactarius indigo.