Illustration of <i><a href="//commons.wikimedia.org/wiki/Brunfelsia_pauciflora" title="Brunfelsia pauciflora">Brunfelsia pauciflora</a></i> (as <i>Franciscea calycina</i>)
William Jackson Hooker (1785-1865)
1851
Curtis's Botanical Magazine, Volume 77, Series 3, Number 7 (<a rel="nofollow" class="external autonumber" href="http://www.botanicus.org/page/438178">[1]</a>)