Illustration of <i><a href="//commons.wikimedia.org/wiki/Calectasia_cyanea" title="Calectasia cyanea">Calectasia cyanea</a></i>
(1785-1865)
1841
Curtis's botanical magazine vol. 67 NS. 14 tab. 3834 (<a rel="nofollow" class="external free" href="http://www.botanicus.org/page/433365">http://www.botanicus.org/page/433365</a>)