74 
The Ohio Naturalist. 
[Vol. XIII, No. 4, 
(3.) Discomycelae. 
a. Hysteriales. Slit Fungi. 
b. Phacidiales. Little Cup Fungi. 
c. Pezizales. Cup Fungi. 
d. Protocaliciales. 
e. Helvellales. 
(4.) Discolichenes. 
a. Coniocarpales. 
b. Graphidales. 
c. Cyclocarpales. 
(5.) Pyrenomycelae. 
a. Hypocreales. 
b. Dothideales. 
c. Sphaeriales. 
d. Perisporiales. Powdery Mildews. 
(6.) Pyrenolichenes. 
a. Pyrenulales. 
b. Mycoporales. 
(7.) Exoasceae. 
a. Exoascales. 
b. Saccharomycetales. Yeast-plants. 
(8.) Deuteromycelae. Imperfect Fungi. 
a. Moniliales. Common Molds. 
b. Melanconiales. Black-dot Fungi. 
c. Sphaeropsidales. Spot Fungi. 
4. Laboulbenieae. Beetle Fungi. 
a. Laboulbeniales. 
o. Teliosporeae. Brand Fungi. 
a. Tilletiales. Stinking Smuts. 
b. Ustilaginales. Loose Smuts. 
c. Uredinales. Plant Rusts. 
G. Basidiomycetae. Basidium Fungi. 
(1.) Protobasidiae. 
a. Auriculariales. Ear Fungi. 
b. Tremellales. Jelly Fungi. 
c. Dacryomycetales. 
(2.) Hymenomycetae. 
a. Agaricales. 
(3.) Hymenolichenes. 
a. Corales. 
(4.) Gastromycetae. 
a. Hymenogastrales. False Truffles. 
b. Sclerodermatales. Thick-skinned Puffballs. 
c. Lycoperdales. Puffballs. 
d. Nidulariales. Bird-nest Fungi. 
e. Phallales. Stink-horns. 
Key to the Orders of Fungi. 
The Fungi are Thallophytes without chlorophyll but sometimes inclose 
chlorophyll-containing Algae in the meshes of their bodies. 
1. Plant body not a true mycelium, usually unicellular, or the cells some¬ 
times in simple or branched filaments; some forms with a plasmo- 
dium, others with a sack-like body containing cells; the resting or 
spore stage sometimes consisting of a sporangium-like body without 
cell structure, with enclosed spores. 2. 
1. Plant body a more or less perfectly developed mycelium consisting of 
septate or nonseptate hyphae. 7. 
