Canistrum is a genus of flowering plants in the family Bromeliaceae, subfamily Bromelioideae, within the order Poales. The genus comprises approximately 22 recognized species of terrestrial or epiphytic bromeliads, divided into two subgenera: Canistrum and Cucullatanthus Leme.
These plants are endemic to the Atlantic Forest biome (Mata Atlântica Brasileira) of southeastern Brazil, a globally significant biodiversity hotspot. Species occur across the Brazilian states from Alagoas and Pernambuco in the north, through Bahia (the center of diversity), southward to São Paulo and Santa Catarina.
Like other Bromeliaceae, Canistrum species form rosettes of leaves and produce inflorescences. The genus includes notable species such as Canistrum aurantiacum, Canistrum seidelianum, Canistrum fosterianum, and Canistrum cyathiforme, which has one of the broadest ranges from Bahia to Santa Catarina. Several species have been described relatively recently, reflecting ongoing botanical exploration of the Atlantic Forest remnants.
Etymology
The name Canistrum derives from the Greek word "kanistron," meaning a kind of basket carried on the head, likely referring to the shape of the plant's inflorescence or its central rosette.
Distribution
Canistrum is endemic to the Atlantic Forest biome (Mata Atlântica Brasileira) in southeastern Brazil. Species are distributed across the coastal and inland states from Alagoas and Pernambuco in the northeast, with the highest diversity in Bahia, southward to São Paulo and Santa Catarina.
Taxonomy Notes
The genus Canistrum belongs to the family Bromeliaceae, subfamily Bromelioideae, order Poales. It contains approximately 22 recognized species, divided into two subgenera: Canistrum and Cucullatanthus Leme. Species-level taxonomy remains active, with several species described in recent decades by botanists including Leme, Siqueira, and others.
