Kalmar Basidiomycete tana nufin rukunin fungi iri-iri waɗanda ke haifar da spores akan sifofi na musamman da ake kira basidia. Basidiomycetes sun haɗa da fungi da aka saba da su, irin su namomin kaza, fungi na gwangwani, da puffballs, da kuma yawancin nau'in tsatsa da smuts waɗanda zasu iya haifar da lalacewa ga amfanin gona. Ana siffanta su ta hanyar samar da jikin 'ya'yan itace masu siffar kulob da ake kira basidiocarps, wanda sau da yawa yana da gills ko pores a ƙarƙashin inda basidia yake. Basidiomycetes suna taka muhimmiyar rawa a cikin yanayin halittu a matsayin masu bazuwa da masu yarda da tsire-tsire, kuma ana ƙima su azaman tushen abinci, magunguna, da samfuran masana'antu.