Truffle Genus: Amogaster
 Amogaster viridigleba basidiospore |
Kingdom: Fungi Phylum: Basidiomycota Order: Agaricales Family: Tricholomataceae |
Spore Characters
Surface: Smooth.
Shape and Size: Ellipsoid, subglobose, to subfusiform, 9-14 (-15) x 4-6 µm. Blunt apex, stergimal attachment present.
Wall: Single, 0.5 µm
Color in Water: Pale yellow-brown
Melzer's Reaction: Dextrinoid to deep orange-brown.
Comments: Differs from Rhizopogon in spore characteristics. Amogaster spores are larger, asymmetrical, having a dextrinoid reaction to Melzer's reagent.
View photos of Amogaster spores
Sporocarp Characters
Shape and Size: Subglobose to irregular, up to 1.25 x 0.75 cm.
Peridium: Thin, evanescent, composed of loosely interwoven nearly
parallel hyphae. White to pale lime-green. Clamp connections lacking.
Gleba: Pale green when fresh, pale to medium yellow when dried. Composed of multiple empty chambers. Columella small, cartilaginous, and dendroid when fresh, becoming indistinct when dried.
Odor: Not distinct.
Comments: The gleba of Amogaster lacks olive or brown hues, which are common in Rhizopogon sporocarps (Castellano, 1995) which lacks the green hues of Amogaster.
View photos of Amogaster sporocarps