M archantiales. 
107 
abundant fiesh Iscw Zealand material) was able to add various 
Monoclea Forsteri. 
Fig. 15. A.—Transverse section of thallus. The large dots indicate the 
oil-bodies, the dotted line the position of the mycorhiza. The narrow rhizoids 
are shown mostly in cross section, the wide ones (of which three are shown) 
are only borne on the median portion of the thallus. x 15. B.—Vertical 
longitudinal section through the growing-point of the thallus, showing the 
apical cell (x) and the large club shaped mucilage-hairs; on the lower surface 
behind the apical cell are shown two of the narrow rhizoids. xl20. C.— 
Horizontal section through the growing-point, showing the apical cell (x) and 
its segments, with the large mucilage-hairs in cross-section, x 120. D.—Part 
of A., traversing the mycorhizal zone, the cells of which contain branching 
fungal hyph£e, some of the latter being shown in the rhizoids. Three of the 
oil-containing cells are shown ; the cells above the mycorhiza contain starch- 
grains, and the two upper layers of cells contain chloroplasts. x 120. E.— 
Part of a vertical section of the thallus, showing three of the wide thin-walled 
rhizoids ; on the left the branched free end of a rhizoid is shown, x 120. F.— 
Part of a section showing one of the narrow thick-walled rhizoids in longitudinal 
section, and three others in cross section, x 120. 
details, including the occurrence of large oil-bodies filling certain 
