Studies on Spore Germination of Hepaticae 4 Makinoa crispata (Steph.) Miyake

Abstract

The sporeling pattern of Makinoa crispata is described and discussed. The first cell division takes place after the rupture of the exospore; the second or third division is longitudinal and the sporeling develops into several-celled primaryplant whose apical cell has two cutting faces; the apical cell forms the meristematic apical region which becomes 4-7 cells thick at middle; the first rhizoid develops normally after the 6-celled stage and is characteristically purplish brown as that of the adult thallus; the oil-bodies in the earlier stage of development are similar to those of adult thallus except for their size, This pattern may be named as Makinoa-type. The relationship between the Makinoaceae and other related families is discussed from the view point of the sporeling pattern.