The spore germination,
protonemal development and gametophyte differentiation of Lindbergia
brachyptera are observed in cultivation. The results show that the
germinating time of the spore is 3 days, and the germination pattern is
exosporous. When the culture is 8 days old, the germinating rate of spores is
95%. The protonemal system of Lindbergia brachyptera consists of two
elements, the filamentous chloronema and the rhizoid. The initial of
gametophytes are observed to have differentiated from the chloronema.