Final answer:
Phaeohyphomycosis was once grouped with chromoblastomycosis, but it is now separated from it due to the absence of sclerotic bodies in phaeohyphomycosis, making the statement true.
Step-by-step explanation:
The statement in question is true. It is true that in the past, phaeohyphomycosis was considered a part of chromoblastomycosis. However, these two are now separated based on the lack of sclerotic bodies in phaeohyphomycosis. This differentiation is important in the taxonomy and clinical diagnosis of fungal infections. Comparatively, chromoblastomycosis is characterized by the presence of sclerotic bodies, which are absent in phaeohyphomycosis, a condition that presents with pigmented hyphae rather than the muriform cells found in chromoblastomycosis.