Mycology 427R/527R
Fall 98
(modified from
Dr. R. L. Gilbertson)
In our system of classification of living organisms six kingdoms will
be recognized. These are:
ProkaryotaeThree of these, Prokaryotae, Plantae, and Animalia, do not contain any groups of organisms traditionally recognized as fungi. They will not be considered further here. The inclusion of the Stramenophila is a relatively new classification scheme where organisms that have cellulosic cell walls and tinsel flagella are in a separate kingdom. 1. Cell wall absent in the vegetative stage, which is a plasmodium or a pseudoplasmodium ...................................................................... PROTOCTISTA 1. Cell wall present in vegetative stage ..................................................................... 2 2. Motile cells, if present, isokont with a single posterior whiplash
flagellum; cell wall with chitin and glucans other than cellulose; sexual
reproduction by isogamy, gametangial fusion, gametangial contact, spermatization,
conidiation, or somatogamy...................................................................................
FUNGI
1. Vegetative stage a multinucleate plasmodium ......................................................... 2 1. Vegetative stage a multicellular pseudoplasmodium ..................................................
3
2. Plasmodial stage free-living .......................................... MYXOMYCOTA 3. Pseudoplasmodium developing after aggregation stage without streaming; myxamoebae with lobose pseudopodia .........................................................................ACRASIOMYCOTA 1. Thallus single celled or filamentous with coenocytic hyphae...........................................
2
2. Thallus single-celled or rhizoidal; motile cells with a single anterior tinsel type flagellum ...................................................... HYPHOCHYTRIOMYCOTA 1. Thallus mycelial (or single-celled in yeasts); no motile cells; hyphae
septate ........................ 2
2. Asexual reproduction by aplanospores developing in sporangia or conidia; sexual spores diploid, zygospores ................................................ ZYGOMYCOTA 3. Sexual spores produced .................................................................................... 4 4. Sexual spores basidiospores on a basidium; dikaryon a free-living vegetative stage..............................................................................BASIDIOMYCOTA |