cryptogam


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cryptogam

(in obsolete classification schemes) any plant that does not produce seeds, i.e. plants placed in the groups Thallophyta, Bryophyta and Pteridophyta. Whereas in conifers and flowering plants (Phanerogamia) the organs of reproduction are prominent, they are not so in the Cryptogamia - hence the name (‘secret marriage’).
References in periodicals archive ?
Eldridge DJ, Semple WS and Koen TB (2000) Dynamics of Cryptogam Soil Crusts in a Derived Grassland in Southeastern Australia.
Li XR, Zhou HY, Wang XP (2003) The effects of sand stabilization and revegetation on cryptogam species diversity and soil fertility in the Tengger Desert, Northern China.
In contrast, a cryptogam indicator associated with black spruce communities that is being developed and tested brings the needed ability to determine the hydrophytic portions of both the vascular and cryptogam aspects of the community.
Eldridge DJ, Greene RSB (1994) Assessment of sediment yield by splash erosion on a semi-arid soil with varying cryptogam cover.
Earlier classifications systems included cyanobacteria, algae, lichens, and bryophytes in the plant kingdom as cryptogams, together with the pteridophytes.
Frequencies of occurrence of perennial grass, cheatgrass (Bromus tectorum), cryptogam crust, and native forbs also were measured by systematically placing 10, 1-[m.
Yet mosses do not make up the bulk of the material, and some so-called cryptogamic crusts do not contain any organism that would fit under the name cryptogam.
Selecting and Testing Cryptogam Species for Use in Wetland Delineation in Alaska.
The least developed form of humus is the so-called cryptogam crust, dominated by cyanobacteria and fungi, whether lichenized or not, so that the only true cryptogams are a few bryophytes.
Eldridge and Kinnell (1997) observed that weighting cryptogam cover with respect to its closeness to the downstream boundary improved the relationship between cryptogam cover and erosion.