The old perfect of the conjugation in at had t (also i) in the 1st pers.
In Sirogonium there is cell-division in the parent-cell prior to conjugation; and as two segments are cut off in the case of the active gamete, and only one in the case of the passive gamete, there is a corresponding difference of size, marking another step in the sexual differentiation.
The assertion of Areschoug that conjugation occurs among zoospores derived from unilocular sporangia, in the case of Dictyosiphon hippuroides, is no doubt to be ascribed to error of observation.
The verb displays a like abundance of trf mary forms with Sanskrit, but the conjugation by periphrasis lit only slightly developed.
Some verbs originally belonging to the conjugation in e r e have, passed over into that in ir; for example t e n e r e gives lenir alongside of tindre, r e man e r e romanir and romandre.