Magazine  (1900)  Page(s) 31.  
 
Royal Horticultural Society International Conference. 1899.  
On Hybridisation (the Cross-Breeding of Species) and on the Cross-Breeding of Varieties.

List of the Principal Hybrid Plants Exhibited.
Clematis
[All raised and exhibited by Monsieur Morel, of Lyons.]
C. coccineo-megalantha = C. megalantha No. 140 ♀ X C. coccinea ♂.  Colour, nearer the seed parent.  Habit similar to the pollen parent.  This plant is always barren.