Bryonoguchia brevifolia S. Y. Zeng reported from China is examined and is c
onsidered conspecific with Hylocomiastrum himalayanum (Mitt.) Broth., a spe
cies widespread in the Himalayas, China, Taiwan, and Japan. Hylocomiastrum
is distinguished from Bryonoguchia by its sympodial growth-form and reindee
r-horn paraphyllia. In contrast, Bryonoguchia is characterized by having fi
liform paraphyllia and uni-papillose leaf cells. Byonoguchia is now a monot
ypic genus of the Thuidiaceae.