PODOSTEMUM RICCIIFORME (PODOSTEMACEAE) REDISCOVERED AND REDESCRIBED

Marathrum ricciiforme was originally described by Liebmann in 1847, ba sed on scanty, sterile material collected in 1841 in Puebla, Mexico, w here it is now extinct. On the basis of vegetative features, the speci es was later transferred to Podostemum (where it indeed belongs), with a second (misidentified) sterile specimen from Costa Rica added. Fert ile material was first collected in 1988, and subsequently in several other Mexican localities. The species is here fully described, illustr ated, and mapped, and an epitype is designated for its name.