n.1.(Zool.) The cavity of a hydrophyllium.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
For some species, the vesicle may develop in the middle of leaf and is named phyllocyst (Fig.
Phyllocystae Tseng to classify species with phyllocysts. Later, based on molecular studies, Stiger et al.
settio Phyllocystae Modified leaves Tseng characterised by a central inflated part (Phyllocysts): receptacles bisexual, generally compound and arranges in short racemes, female receptacles flattened or triqueterous, generally dentate.