The database appears to need some updating of this genus if the CoL is to be believed.
http://www.catalogueoflife.org...
Our database lists 3 entries: albidum, bijlii, and acuminatum.
https://garden.org/plants/sear...
Machairophyllum (Machairophyllum albidum)
Machairophyllum (Machairophyllum bijliae)
Of which one (M. albidum) is apparently correct. But (M. bijlii) appears to be spelled wrong (should be bijliae according to the CoL).
Machairophyllum (Machairophyllum bijliae)
http://www.catalogueoflife.org...
And another (M. acuminatum) appears to be a synonym for the same plant.
http://www.catalogueoflife.org...
Two others shown in the CoL (M. stayneri and brevifolium) are missing.
So it appears that one of our entries should be merged with another, whose spelling may need tweaking. And those last two should be created.
It would be great if an admin could check my work and update the database.
I started this thread after seeing a post on a similar subject in the succulents forum, here:
The thread "Machairophyllum" in
Cactus and Succulents forum