Medical Officers of the Army of India.

35

us to understand how such great masses of cells as are present in such teleuto-
spores as those of R. sessilis, come to be connected with such slender stalks,
which remained an obscure point even when the complex nature of the stem was
recognised, but the spore-cells were regarded as taking origin directly from it.
Finally, it is clear that, in dealing with dried specimens of detached spores, the
presence or absence of cysts or stalks cannot be regarded as of specific import-
ance, seeing that in one and the same species cysts may be present at one time
and absent at another, and that stems of very considerable length may be
present without having any tendency to adhere permanently to the basal cells,
more especially in cases such as that of R. stictica, in which they remain through-
out buried among the tissues of the host.

D. D. CUNNINGHAM.

CALCUTTA;
23rd October, 1888.

F 2