298 Transactions of the Royal Society of South A frica. 
the same species, in addition to 9 genera which do not appear to have been 
recorded from South Africa by other collectors. 
More than a third of the known genera of Myxomycetes are now recorded 
from South Africa, and it is certain that further search will result in the 
discovery of many additional forms. 
I have to thank many interested friends and students for assisting me 
in amassing material for examination, and here I would take the opportunity 
of asking for specimens from any persons interested in this lowly group 
of our South African flora. Although one must of necessity be more or 
less satisfied with specimens of the mature fructifications yet it would be 
of much assistance if the colours of plasmodia and young fruit bodies were 
noted by collectors. 
As soon as opportunities offer I intend publishing descriptions of the 
undetermined species in the following list and future collections. 
Sub-Class I— EXOSPOREAE. 
Order I.— CERATIOMYXACEAE. 
Oenus 1.— CEEATIOMYXA. 
Sub-Class II.— endosporeae, 
CoHOKT I.— AMAUROSPORALES. 
Sub-Cohort I.— CALC ARINEAE. 
Order I.— PHYSARACEAE. 
Genus 2.— BADHAMIA. 
Genus 3.— PHYSARUM. 
Genus 4.— FULIGO. 
Genus 5.— TRICH AMPHORA. 
Genus 6.— PHYSAEELLA. 
Genus 7.— CRATERIUM. 
Genus 8.— LEOCARPUS. 
Genus 9.— DIDERMA. 
Genus 10.— DIACHAEA. 
Order 1L— DIDYMIACE AE. 
Genus 11.— DIDYMIUM. 
Genus 12.— MUCILAGO. 
