45° 
The Ohio Naturalist. 
[Vol. IX, No. 4, 
Parasitic or saprophytic fungi with a septate mycelium and 
asci usually containing a definite number of ascospores, the asci 
often produced as the result of a conjugation of two branches 
of the mycelium, or sometimes by a more highly developed sex¬ 
ual process; conidiospores commonly developed, in many groups 
the conidial stage only being known. 
Subclasses, Heniiascae 
Exoascae 
Discomycetae 
Pyrenomycetae 
Discoliclienes 
Pyrenolichenes 
Deuteromycetae 
23. Laboulbenieae. 150 species. 
Minute fungi with a septate body parasitic upcn insects, 
usually beetles, connected with the host by means of a dark- 
colored horny base serving as an organ of absorption and a hold¬ 
fast; oogonium with a slender projection, the trichogyne, to 
which the nonmotile spermatia become attached, finally fer¬ 
tilizing the oosphere below; as the result of fertilization a number 
of sacs or asci are produced which contain the nonsexual asco¬ 
spores. 
24. Teliosporeae. 2100 species. 
Parasitic fungi with the septate mycelium developed in the 
tissues of the host, finally producting teliospores which give rise 
to septate or nonseptate basidia on which basidiospores are pro¬ 
duced; some groups producing five kinds of spores, often heter- 
oecious; especially abundant on plants of the Grass family. 
25. Basidiomycetae. 10,000 species. 
Mostly large saprophytic, rarely parasitic, fungi with a sep¬ 
tate mycelium; developing septate or nonseptate basidia on the 
vegetative mycelium, no teleospores being produced; basidia 
usually with two or four spores. 
Subclasses, Protobasidiae 
Hymenomycetae 
G asteromycetae 
Hymenolichenes. 
III. BRYOPHYTA. 17,000 species. 
26. Hepaticae. Liverworts. 3875 species. 
Gametophvte thalloid or a stem-like frond with scales which 
are without a costa, mostly dorsiventral, usually with a sack-like 
envelope, the perigynium, around the archegona; rhizoids thread¬ 
like and unicellular; protonema usually small or only slightly 
developed, transient. Sporophyte either a spherical sporangium 
without foot or stalk, or differentiated into sporangium, foot and 
