The statement is true up to the following point:
"Mold is often used interchangeably with the word mildew.
They are the generic terms that describe..[some]..fungi."
Using Google's 'define' function, we can pull up a whole
page of resulting definitions from the web:
Here's some of what we find...
"a common name for fungi that grow in a filamentous fashion
and reproduce by means of spores; all molds are fungi, but
not all fungi are considered 'molds'"
"a fungus; molds are plants that make spores instead of seeds
which float in the air like pollen. They are a common trigger
for allergies. Molds are found in damp areas, such as the
basement or bathroom, as well as in the outdoor environment
in grass, leaf piles, hay, and mulch."
"A fungus-type microorganism whose growth on food is usually
visible and colorful. Molds may grow on many foods, including
acid foods like jams and jellies and canned fruits."
"is a superficial, often wooly substance that grows on damp or
decaying organic matter or on living organisms. Molds produce
tiny spores to reproduce. These mold spores waft through the
indoor and outdoor air continually."
"a common name for mold or fungi; often used in reference to
fungal growth on bathroom tiles and fixtures"
"A common name for dark coloured molds which cause disfiguration
and degradation. They can be found in interior (ie bathrooms)
and exterior environments (ie tenting, awnings, painted siding)."
"Mildew is another name for common household black mold."
"A fungus that grows in dark, moist enviroments. It appears in
different colors such as black, gray, yellow, green, or purple."
"Mildew is a grey, mold-like growth, caused by one of two types
of microorganism. These do not belong to the same biological
This last entry, from Wikipedia, bears a closer look. It specifies:
"Mildew is a grey, mold-like growth caused by one of two
different types of micro-organisms.
What most horticulturalists and gardeners call mildew is
actually powdery mildew, caused by various Ascomycota fungi.
There are several species, all pests of flowering plants,
called obligate parasites. The species that affects roses
is Sphaerotheca pannosa var. rosa.
The other main form of mildew is downy mildew, which is a
member of the Oomycota phylum in the Protista kingdom. In
commercial agriculture, downy mildew is a particular problem
for growers of potatoes, grapes and vine-type vegetables.
Mildew can thrive on any organic matter, not just living
tissue, and can appear on clothing, leather, paper, and
the ceilings, walls and floors of many homes. It often
lives on shower walls."
This more precise, scientific definition does not reflect
Reading through this, we can see that algae are single or
multi-celled plants which are not, however, fungi. They
grow near or *in* water, as seen on the sides of a swimming
pool, while mold grows in a damp environment, but not underwater.
It may be mistakenly called mold, as when it is found on a
Rust is both a specific fungus which feeds on iron, and a group
of fungi which cause disease in plants.
One-celled fungi that feed on sugar. This says it all:
"common name for an artificial assemblage of higher fungi
which have temporarily or permanently abandoned the use
of hyphal thalli; they are unicellular, and vegetative
reproduction is generally by budding or fission."
"Bacteria (singular, bacterium) are a major group of living
organisms. They are microscopic and mostly unicellular, with
a relatively simple cell structure lacking a cell nucleus,
cytoskeleton, and organelles such as mitochondria and
They both nuclei and chlorophyll and were considered not to
be plants, at first. Classification is still difficult, but
some consider them to be very primitive forms of plant life.
For the most part, even large colonies are pretty much invisible
in the world around us.
So, in summary, all molds are fungi, but not all fungi are molds.
Rusts are fungi which are not molds. Algae are plants; yeasts are
a specialized single-celled higher form of fungi. and bacteria
are very primitive microscopic single-celled organism sometimes
classified as plants.
Fungi, while once classified as plants, have come to have their
own classification, since they don't make their own food, as
plants do, but absorb it from what they consume from other living
or once-living things. In that sense they are closer to animals
than plants, but since they lack stomachs, they are unique. See:
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A user's guide on this topic is on skermit-ga's site, here:
Additional information may be found from an exploration of
the links resulting from the Google searches outlined below
(in addition to the ones already provided):
Searches done, via Google:
mold phylum OR genus OR species