Here is a photo of a root-forming callus (as opposed to those producing shoots or leaves) of the "selfed" seed mentioned earlier. Root formation is often the weakest link in terms of tissue cultured plants; and commercial growers -- to cut costs -- often transfer "plantlets" of many species to compost to root ex vitro
. I have found that Cephalotus
, in particular, is far more successful and vigorous if there is something more substantial below the soil . . .
Cephalotus follicularis "Eden Black x Self" 25 August
I was also very encouraged by the bright red coloration of the earliest "vegetative" leaves on another callus, even under the moderate lighting conditions of a growing room:
Here are a couple of other shots of root-producing calli in Muroshige-Skoog-based multiplication media -- both of which currently look like something out of an HP Lovecraft story: