Forest
A
Type
forest stand that
is
essentially similar
throughout
its
extent in composition under generally similar environmental conditions. It includes temporary, permanent, climax, and
cover types.
Form
A botanical characteristics
taxonomic category based upon more
and with a
less distinct
trivial
geographical range
than those of the Subspecies or Variety.
Formation One of the
largest subdivisions of the vegetation of the of earth, usually great geographical extent, composed of communities that are similar in physiognomy and broad environ-
mental relations, America,
cf.
the deciduous Biome. Climax, e.g.,
forest of eastern
North
Formenkreis
A
series of related
forms distinguished geographically
and which originated entirely or primarily by geographic isolation.
Fossorial Refers to animals that burrow in the cf.
soil, e.g.,
the mole,
Ambulatorial.
(of a Community) stand so small that it lacks the species composition and other characteristics of the Community.
Fragment
A
Fragmented Structure
(Soil)
A soil composed largely of particles that have well defined
faces
and
edges,
cf.
Granular structure.
Free-martin
A
sexually imperfect female a twin of a male animal.
150
calf, sterile usually,
born
as