Small plant of Chondrus crispus, Carrageen Moss; the spots represent the fructification, consisting…
The growing end of a branching Conferva (Cladophora glomerata), showing how, by a kind of budding growth,…
Section through a conceptacle of Delesseria Leprieurei, showing the spores, which are single specialized…
Magnified section through a fertile conceptacle of Rockweed, showing the large spores in the midst of…
"Diagram illustrating the gradual filling up of lakes by the encroachment of vegetation, and also the…
Similar section of a sterile conceptacle, containing slender antheridia.
Agarum Turneri, Sea Colander, so called from the perforations with which the frond, as it grows, becomes…
Cleared land vegetation topography symbol used in map drawing and drafting.
Topography conventional symbol for corn used in map drawing and drafting.
A drafting topography vegetation symbol for cultivated land.
Vegetation topography symbol for deciduous trees convention in drafting and map drawing.
A vegetation Everglade tree for topography symbol used in map drawing and drafting.
A conventional topography vegetation symbol for meadow used in map drawing and drafting.
A conventional oak tree vegetation symbol used in map drawing and drafting.
A conventional vegetation topography for orchard commonly used in map drawing and drafting.
Conventional vegetation topography symbol for pine, willow and brush.
A conventional map drawing and drafting topography symbol for tobacco.
A series of conventional topography symbol for vegetation used in map drawing and drafting.
A common topography vegetation symbol for vineyard used in map making and drafting.
A map drawing or drafting conventional vegetation symbol for willow.