synusia

1.Character synusia is not always a dominant one, but the presence of which is particularly characteristic of a given vegetation type.

层片并不总是优势层片，但它的存在别可作为一定被型的。

2.Results indicate that phanerophyte is the dominant synusia in the shrub layer and hemicryptophyte in the herbage layer, and Selaginella is the only species on the forest floor.

究结果明：高位是灌木层中的优势层片；地面是草本的优势层片；