Original caption reads: "
<i>Crucibulum vulgare</i> Tul.; young and mature sporophores in  longitudinal section, X 3; after W. G. Smith." Note that <i>C. vulgare</i> is now known as <i><a href="//commons.wikimedia.org/wiki/Crucibulum_laeve" title="Crucibulum laeve">Crucibulum laeve</a></i>
Credited to W.G. Smith
1927
Gwynne-Vaughan HCI, Barnes B. (1927). <i>The Structure &amp; Development of the Fungi</i>. Cambridge at the University Press:Great Britain. p. 313, Figure 313.