sporangium

/spuh-ran-jee-uhm/US // spəˈræn dʒi əm //UK // (spəˈrændʒɪəm) //

孢囊,孢粉,孢子叶,孢霉菌

Definitions

n.名词 noun

1
plural spo·ran·gi·a [spuh-ran-jee-uh]. /spəˈræn dʒi ə/. Botany, Mycology.
- : the case or sac in which spores are produced.

The spores are formed in a manner very similar to those of the mosses, and are set free by rupture of the sporangium.
The stipe in length ranges from three to ten times the diameter of the sporangium.
The stipe ranges a little shorter than in the preceding variety, three to seven times the sporangium.
In P. corticalis the line of cleavage before spore dispersal is indicated by a definite band surrounding the sporangium.
Outwardly the open sporangium, by the projecting free tips, reminds one of a trichia.