Abstract
The occurrence and development of cystoliths in Beloperone are described. Minute crystals appear in the vacuoles of certain meristematic cells in the stem apex. A pellicle surrounds the enlarging vacuole and the crystals fuse into one composite structure. Concurrently, a tenuous attachment stalk is developed. The characteristic outline of cystoliths[long dash]warty, papillate, or spiny[long dash]is determined by the direction of protoplasmic strands anchored in the plasmodesmata of the cell wall. In the mature lithocysts of Ficus elastica and Boehmeria nivea, the pattern of the protoplast is similar to that of Beloperone.

This publication has 2 references indexed in Scilit: