Figure 8 from the instructional pamphlet "Twelve edible mushrooms of the United States" by Thomas Taylor, illustrating a specimen of Clavaria cinerea.
Thomas Taylor
1893
<a href="https://en.wikisource.org/wiki/en:Twelve_edible_mushrooms_of_the_United_States" class="extiw" title="s:en:Twelve edible mushrooms of the United States">Twelve edible mushrooms of the United States</a> (Pamphlet published by USDA)