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Series FUNGI of the Phylum THALLOPHYTA. 
Class PHYCOMYCETES (Algal-fungi).* 
Order Cuyrripiaces. (Algal parasites). 
Order Mucorates. (Moulds). 
Order EnromopntTsora.es. (Insect parasites.) 
Order Saprorecnraces. (Aquatic moulds.) 
Order PeRonosporates. (Downy mildews.) 
Class ASCOMYCETES. (Spore-sac fungi.) 
Order Hemrascaes. 
Order PROTOASCALES. (Yeast fungi.) 
Order Gymnoascatrs. (Plum pockets.) 
Order PERISPORIALES. (Powdery mildews, etc.) 
Order HypocrEALes.+ 
Order SPHAERIALEs. Black-fungi (Pyrenomycetes). 
Order DoruimEa.es. 
Order LABOULBENIALES.{ 
Order TuBERALEs. (Truffles.) 
Order Hystertaces. 
Order Paactprares. Cup-fungi (Discomycetes). 
Order PEzizaes. : 
Order HELvErares. (Morels, etc.) 
(Fungi Imperfecti.)§ 
Order Hypnates. (Hyphomycetes.) 
Order MELANCONIALES. : 
Order SpHarRopsipaLes. (Spot fungi.) : 
* Fischer's arrangement of these forms in the order of their simpliclty = Ast 
tion and structure seems highly satisfactory. The anid epee ta or third 
Archimycetes, with usually asexual methods of reproduction. ; The apg es sas 
form the Zygomycetes, their sexual reproduction being by Paid Mbctldised 
orders form the Oomycetes in which sexual reproduction is nigh : t. . 
ine the ge Seve ee ON SE 
+ It is with some misgivings that this group is left as a aro aha As 
next, since it differs from it chiefly in the color and consistency oh ; s of American 
t This remarkable group, whose development is one of the a of the au- 
botany, is surely worthy of ordinal rank, It is remarkable that gh oat Ne 
thors quoted, mentions this extensive group, and then only os i tet 0 Be ce 
Pyrenomycetes, And still there are — among American 
tinue to claim that American botany is nothing. ¢ . 
§ Tie tsetonai ee oa _pealteaes 
forms are not now connected with any ascigerous form is certain. ae 
number of them have always had a complete autonomy is highly probable. 
