i have this kind of bud on three of my mangos. lancetilla, maha chanok, and Neelam. also more conventional buds forming. being in north florida, i think i'm a little behind the calendar for other places - 6 weeks?
my poor Neelam got damaged in my greenhouse construction. not once, but twice! i planted the mangos last spring, and built the greenhouse around them. taking down the scaffolding for the roof installation, the Neelam got stuff dropped on it. it responded by pushing a LOT of buds this year. it was also the only one that produced fruit the first year. it gave me one (1) mango last fall. it was delicious.