"Phycomyces " also exhibits an avoidance response, in which the growing sporangiophore avoids solid objects in its path, bending away from them without touching them, and then continuing to grow upward again.
32.
In the spring the oospores germinate and produce sporangia ( s . sporangium ) on short stalks called sporangiophores that become so tightly packed within the leaf that they rupture the epidermis and are consequently spread by the wind.
33.
"Apophysomyces variabilis " resembles the other three members of the genus " Apophysomyces " but is characterized by the variable appearance of its sporangiospores and sporangiophores which range from club-shaped to trapezoidal to flattened spheres.
34.
Sporangia are produced directly on stems . " Psilotum " has been interpreted as producing sporangia ( fused in a synangium ) on the terminus of a stem . " Equisetum " always produce strobili, but the structures bearing sporangia ( sporangiophores ) have been interpreted as modified stems.
35.
Some zygomycetes disperse their spores in a more precise manner than simply allowing them to drift aimlessly on air currents . " Pilobolus ", a fungus which grows on animal dung, bends its sporangiophores towards light with the help of a light sensitive pigment ( beta-carotene ) and then " fires " them with an explosive squirt of high-pressure cytoplasm.
