This group represents a significant evolutionary leap in the complexity of reproductive structures.
: Known as cellular slime molds, where individual amoeboid cells aggregate to form a fruiting body. Subdivision 2: Plasmodiogymnomycotina Class Protosteliomycetes : Simple slime molds. classification of fungi by alexopoulos and mims
Constantine John Alexopoulos, a Greek-American mycologist, and Charles Winston Mims, an American mycologist, joined forces to tackle the daunting task of classifying fungi. Their collaboration led to the development of a widely accepted system, which was first introduced in the 1960s. This group represents a significant evolutionary leap in
This division includes "naked" fungi or slime molds. These organisms are primarily phagotrophic, meaning they ingest solid food particles, and they lack a definitive cell wall during their vegetative phase. These organisms are primarily phagotrophic
While modern molecular phylogenetics has drastically reshaped fungal taxonomy, the Alexopoulos and Mims system remains a critical historical and pedagogical milestone. It was one of the first systems to integrate cytological features—such as the nature of the flagella and the structure of the cell wall—into a cohesive evolutionary narrative.
Alexopoulos and Mims divided the Kingdom Fungi into , which were further split into subdivisions and classes. Their system notably separated the slime molds (myxomycetes) from true fungi.