A further means of enabling a soap to contain large proportions of water and yet present a firm consistence is found in the use of silicate of soda.
They are characterized by their gelatinous consistence and large size of their sporophore.
Soft Soap. - Soft soaps are made with potash lyes, although in practice a small quantity of soda is also used to give the soap some consistence.
It dissolves readily in ether, and has a soft resinous consistence.
The simpler forms bear the perithecia directly on the mycelium, but the more highly developed forms often bear them on a special mycelial development - the stroma, which is often of large size and special shape and colour, and of dense consistence.