Name: Lactarius argillaceifolius
Authority: Hesler & A.H. Sm. 1979
Vouchered by: J. Barkha McDermith
Date found: 6/14/2007
Collected by: J. Barkha McDermith
Voucher ID: 121
Confirming Mycologist: Jay Justice
Latitude: 037.074 N
Longitude: 091.703 W
City: Mountain View
County: Howell
State: Missouri
Site location: 1036 Harlow Rd
Habitat: woods - hardwoods & conifers
Moisture conditions: moist
Substrate: moss
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:167
Spore length: 7 - 11 microns
Spore width: 7 - 8 microns
Spore color: hyaline
Spore texture: ridged and warted
Spore shape: nearly round to elliptic
Spore print color: pinkish buff
Chemical reaction: n/d
I spent quite a bit of time IDing this mushroom at Ha Ha Tonka under Jay Justice’s tutelage, and was lucky to find it again the next week in Mountain View. DNA analysis in 2015 returned Lactarius spinosulus but the macro and micro information, along with Dr. Andrew Methven's close study of the actual voucher specimen confirmed this specimen is Lactarius argillaceifolius.

Sorry, this website uses features that your browser doesn’t support. Upgrade to a newer version of Firefox, Chrome, Safari, or Edge and you’ll be all set.