crustose

As a noun terms

is .

As an adjective crustose is

(lichenology) of a lichen, growing tightly appressed to the substrate.

As adjectives the difference between crustose and noncrustose

is that crustose is (lichenology) of a lichen, growing tightly appressed to the substrate while noncrustose is not crustose.

Squamose is a coordinate term of crustose.

As adjectives the difference between squamose and crustose

is that squamose is while crustose is (lichenology) of a lichen, growing tightly appressed to the substrate.

Fruticose is a coordinate term of crustose.

As adjectives the difference between fruticose and crustose

is that fruticose is (of a plant) having woody stems and branches; shrubby while crustose is (lichenology) of a lichen, growing tightly appressed to the substrate.

Crustose is a coordinate term of foliose.

As adjectives the difference between foliose and crustose

is that foliose is leafy while crustose is of a lichen, growing tightly appressed to the substrate.

As a noun substrate

is .

As an adjective crustose is

(lichenology) of a lichen, growing tightly appressed to the substrate.

As adjectives the difference between appressed and crustose

is that appressed is (biology|mycology) closely flattened down while crustose is (lichenology) of a lichen, growing tightly appressed to the substrate.

As a verb appressed

is (appress).

As a noun lichen

is any of many symbiotic organisms, being associations of fungi and algae; often found as white or yellow patches on old walls, etc.

As an adjective crustose is

of a lichen, growing tightly appressed to the substrate.