If you do a Google image search for the flowers, MOST of what comes up is NOT thomsonii.
One of the images on Jay’s Internet Orchid Species Encyclopedia is correct: http://www.orchidspecies.com/orphotdir/aerangithompsonii.jpg
[the other pictures there are NOT thomsonii!!!].
Aerangis
thomsonii
These are native
to parts of Africa. This is the coolest growing and one of the largest
growing of the Aerangis. They require shaded conditions and if you’ve
got intermediate to warm temperatures [like we do] they will need a constant
light breeze so they don’t overheat. They have beautiful grey-green
foliage which makes them a little unusual looking. These are RARE
in cultivation..