David, you got a very bright sunlit balcony there! Your tills are in very healthy condition without sunburn. I wish I can grow tills like that as it looks like just the right light exposure for them.
I would like to guess the unIDed tills.
1 T. capitata x xerographica
4 T.bulbosa x butzii
9 T.araujei
14 T.balbisiana x (?) I have one of that too. It looks quite sturdy and sun resistant.
Your xero looks unique, like a pineapple crown.
