101 
The reader will be interested in comparing Brefeld’s scheme of classi¬ 
fication here reproduced with that given by De Bary in his Morphology 
and Biology , English ed., p. 132, German ed., p. 142: 
Natural system of the filamentous fungi. 
I. Class Zygomycetes. 
Sexual reproduction by 
Zygospores. 
fBy sporangia only. (*) { Thamnfdi® (t). 
Non-sexual propagation. ’ aut ^ con '‘ Choanephoreac (t). 
Pliycomycetes (lower, 
algae-like, sexual' 
fungi). 
'i dia. (**) 
B.y conidia only, (ft) 
IT. Class Oomycetes. 
Sexual reproduction by 
oospores. 
( Clifetocladiacese (t). 
) Piptocephalideae. 
f Peronosporese. 
By sporangia or conidia. < Saprolegniae. 
Non-sexual propagation. <( 
(By conidia only. 
I Chytridiaceae. 
Entomoplithoreae. 
' Ustilagineae. 
Intermediate forms. 
Propagation. 
Mycomycetes (higher, 
non-sexual fungi). 
By sporangia (*)resem- Protomyces (provis- 
bling asci. ionally one genus 
only.)" 
By conidia resembling 
basidia. (tt) 
fUstilago, TilletiaSo- 
rosporium, etc. 
\ (the remaining 
I forms of the smut 
l fungi). 
I. Class Ascomycetes. Propa¬ 
gation by sporangia and co- 
uidia. (**) Sporangia in asci. 
II. Class Basidiom y c etes. 
Propagation by conidiaonly. 
(tt) Conidia borne on basi¬ 
dia. 
Exoasci (asci naked). 
f Exoascus, 
I Taphrina (provision- 
] ally only these two 
( genera). 
( Tuberaceie. 
1 Pyrenomycetes. 
Carpoasci (asci in com- | Discomycetes (the 
pound fruit-bodies). <( characteristic mass 
of Ascomycetes) 
I with their subfami- 
(. lies. 
Gymnocar-5Y re - iu r- 
nous C) < Armenian®. 
1 ■ • (+) ( Tremellinea?. 
Protobasidio- 
m ycete s. 
(Basidia di -{ 
vidcd). jAngiocar- pi] 
{ pous. (If) -^ liacref °* 
Autobasid i o 
mycetes.- 
(Basidia un¬ 
divided.) 
f Lycoperdiaceao. 
Angiocar- / Nidulariese. 
pous. (If) S Phalloideae. 
[ Hymenogastreae. 
f Thelephoreae. 
Hemiangio- j Hyduese. 
carpous. i Polyporese. 
(Agaricini. 
fivmnnc nr( D acryomycetes. 
•'mnocar-) ciavariero. 
Tomentelleae. 
pous. (f) 
The asterisks, etc., denote genetic kinships, indicated in Brefeld’s table by connecting lines 
The general observations of Heft VIII are completed by two very in¬ 
teresting chapters on (1) The Morphological Value of Chlamydospores in 
Fungi and on (2) The Morphological Value of Conidia in Fungi. There 
is also a sort of appendix on The importance of light for the development 
of certain fungous forms. The conclusion of the latter is that, in the 
fungi which were examined ( Pilobolus , Coprinus ), light has no influence, 
on sterile mycelial growths, but that it is absolutely essential to the 
