Encephalartos sclavoi

Encephalartos sclavoi, common name Sclavo's cycad, is a critically endangered cycad in the family Zamiaceae. It is endemic to Tanzania, with a population of only ~50 mature plants.

Description
Encephalartos sclavoi grows to about 1 m high. The leaves are 170 to 200 cm long, dark green and semiglossy. Its seed cones are yellow, being 30 to 40 cm long and 15 to 20 cm in diameter.

It was described in 1990 by Aldo Moretti, D.W. Stevenson and Paolo Deluca, honoring Jean Pierre Sclavo, a French collector of cycads, who first discovered this species.