Zygomycetes Syncephalastrum spp. Description Colonies are rapid growing, often filling the culture tube, cottony, at first white, becoming gray to black, reverse color usually is white. Sporangiophores are branched, curved, and end in a vesicle. Merosporangia arise from the vesicles. Sporangiospores are 1-celled, globose and aligned in a single row in each merosporangium.
Rhizoids are usually present.
Salient characteristics Syncephalastrum produces merosporangia that arise from vesicles at the apices of sporangiophores. Syncephalastrum racemosum Laboratory precautions Handle with care, but special precautions are not necessary.