Oh dear me - confusion reigns again, just when i thought we might have consensus! But as you say MIke it could be the difference between dormant and in growth - the tunic had loosened from the base. Maybe I'll unearth it again and check for that type of grooving at the base. Thank you again (I think) :-) On Tue, Aug 7, 2012 at 6:03 PM, Michael Mace <michaelcmace@gmail.com> wrote: > You're not making this easier ;-) > Corms of watsonius have "teeth" (my term) at the base of the tunic. You > can see it in a couple of the corms in my photos, and it's also shown in the illustration in Goldblatt & Manning. The teeth are fairly rigid and kind of clamp onto the corm. I don't think I see those teeth in your photo (although the tunic might look different on a dormant bulb). -- terry frewin 661 upper boho road boho 3669 03 5790 8635 0429 908 635