bathyphyll References bathyphyll frond Ask Anything Homework Help Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of Encyclopædia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: fern/ Ecology…these the lower leaves (bathyphylls) are usually vegetative and are often different in form from those at the higher levels (acrophylls), which are entirely or partly fertile in that they bear sporangia over their surfaces. Read More…these the lower leaves (bathyphylls) are usually vegetative and are often different in form from those at the higher levels (acrophylls), which are entirely or partly fertile in that they bear sporangia over their surfaces. Read More