Crystal Cyst Formation in Parenchymatous Tissue . 179 
Fig. 5 . Young symplast in the central part of the perigone leaf. Nuclei after the fusion lying 
in an extraordinarily large protoplasmic mass, and moved more or less to the one extremity of the 
cell. Oil immersion, ocular 8 . 
Fig. 6 . Symplast from the second layer of the parenchymatous tissue. Nucleus at the side wall 
of the cell. Raphid colony with curved crystals. Oil immersion, ocular 8 . 
Fig. 7 . Symplast with nucleus at one of the poles of the cell, connected by plasma threads with 
the protoplasm wall, and situated in a dense mass of protoplasm. Oil immersion, ocular 4 . 
Fig. 8 . A cyst in the parenchymatous tissue of a perigone leaf. Fusion of a cyst with a neigh¬ 
bouring cell and the fusion of their nuclei. The cyst occurs as a space in the tissue. Crystal colonies 
developed in different positions. Oil immersion, ocular 8 . 
Fig. 9 . Cyst from the central part of the perigone, with the form of an embryo-sac and with 
protoplasm threads in the cell. Two nuclei united, i. e. lobed nuclei, lying along the side wall. 
Crystal colonies in more or less different positions. Oil immersion, ocular 8 . 
Fig. 10 . Cyst nucleus in lobed form. Oil immersion, ocular 12 . 
Fig. 11 . Fusion and union of a symplast nucleus with other nuclei in the parenchymatous tissue. 
Crystal substance already formed. Oil immersion, ocular 12 . 
Fig. 12 . Shell-formed symplast nucleus from the parenchymatous tissue. Oil immersion, 
ocular 12 . 
Fig. 13 . Lobed cyst nucleus lying at the side wall of a parenchymatous cell of the perigone leaf. 
Oil immersion, ocular 12 . 
Fig. 14 . Cyst nucleus with spiral form and lying along the side wall of the cell of the same 
tissue. Oil immersion, ocular 12 . 
Fig. 15 . Spherical cyst nucleus stretched out and lying along the side wall in the protoplasm 
mass of a cell of the anther tissue. Oil immersion, ocular 7 . 
Fig. 16 . Nucleus of a symplast stretched out and lying along the side wall of a parenchymatous 
cell with newly formed raphides. The nucleolus has grown extraordinarily. Oil immersion, 
ocular 12 . 
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