sorus.

/sawr-uhs, sohr-/US // ˈsɔr əs, ˈsoʊr- //UK // (ˈsɔːrəs) //

梭罗,梭梭,梭伦,梭罗人

Definitions

1.
plural so·ri [sawr-ahy, sohr-ahy]. /ˈsɔr aɪ, ˈsoʊr aɪ/.
- ›Botany. one of the clusters of sporangia on the back of the fronds of ferns.
- ›Mycology. a soruslike spore mass of certain fungi and lichens.

The indusium arises from a vein to which the sorus is attached.
The sorus is circular and is covered with an indusium which is notched or kidney-shaped.
Synangium, si-nan′ji-um, n. an arterial trunk: the boat-shaped sorus of certain ferns.
Commonly the spore-cases occupy only detached spots or lines, each of which is called a Sorus, or in English merely a Fruit-dot.
In this case the sorus is always near to the margin of the leaf, and the indusium or covering is cup-shaped.