Key to Stinkhorn Fungi

1. Olive-green, slimy spore mass distributed along inner surfaces of 3-5 "arms" rising
     from a common stalk ..................................................................................................Pseudocolus fusiformis

1. Olive-green, slimy spore mass confined to terminal portion of a single stalk

    2. Distinct head present, lower margin of head free from stalk, head covered with olive brown slime;
        stalk whitish or reddish (in part); whitish to pinkish cup (volva) at base of stalk
        3. Stalk whitish ..............................................................................................................Phallus ravenelii

        3. Stalk reddish (at least in part) ....................................................................................Phallus rubicundus

    2. Distinct head lacking; olive-brown slime merely covering a portion of the upper stalk;
        stalk pinkish-red to orangish (or white); sac-like volva at base of stalk

        4. Stalk pinkish red to pinkish-orange, gracefully tapered from middle toward apex; slimy spore
            mass covering upper 1/3 or ½ of stalk (up to 6 cm) ....................................................Mutinus elegans

        4. Stalk white to pink to pinkish-red, tapered abruptly at apex; slimy spore mass covering only the upper
            ¼ or less (2-3 cm) of the stalk......................................................................................Mutinus caninus