Question: Do the genuses Tiarella and Lagunaria belong to the same family?

Related documents: [0]  [DOC] Tiarella, foamflower, is a genus of wildflower and garden plants found in Asia and North America. They belong to the Saxifrage family (Saxifragaceae). Some species are: [END] 
[1]  [DOC] Lagunaria is a monotypic genus in the family Malvaceae. It is an Australian plant endemic to Lord Howe Island, Norfolk Island and parts of coastal Queensland. It has been introduced to many parts of the world. The genus was named for its resemblance to the earlier genus "Laguna" Cav., which was named in honour of Andrés Laguna, a Spanish botanist and a physician to Pope Julius III. [END]  
Answer: no
no