222 J ohnson.—On Gracilaria confervoides , Grev. 
EXPLANATION OF FIGURES IN PLATE XI. 
Illustrating Mr. T. Johnson’s paper upon the procarpium and fruit in Gracilaria 
confervoides , Grev. 
Fig. i. Vertical median section of swelling made at right angles to axis of 
thallus-branch bearing it. f s. fruit-sheath, f. c. curved dotted line, representing 
line of origin of fruit-cavity, p , p 1 , p 2 , p 3 , p i , p 5 , procarpial cells, c. carpo- 
gonium. p. c. placental cells, x 600. 
Fig. 2. Vertical median section of the swelling made parallel with, instead 
of at right angles to, the axis of the thallus-branch. Older than section in Fig. 1. 
t, t\ trichogyne. f. c. fruit - cavity ; other letters as in Fig. 1. Procarpium ready 
for fertilisation, x 600. 
Fig. 3. Vertical median section of swelling in same plane as in Fig. 2. Lettering 
as before. Procarpium larger. Before fertilisation, x 600. 
Fig. 4. Vertical median section of the swelling in same plane as in Fig. 1. 
Lettering as in Fig. 1. Procarpial cells fusing. After fertilisation, x 600. 
Fig. 5. Vertical median section of the swelling in same plane as in Fig. 1. 
s spores ; other letters as in Fig. 1. Pore complete, x 600. 
Fig. 6. Same section as that in Fig. 5, magnified only five times in order to 
show the size of swelling relatively to thallus-branch, the structure of which is 
indicated, x 5. 
