DPA INTRODUCTION TO BOTANY. 
Cistule. Globular apothecia, at first closed, and filled 
with spores adhering to filaments, afterwards splitting ir- 
- regularly. Sphzerophorus. 
Cephalodia. Apothecia like the patellula, but with 
scarcely any edge, and the disk more convex. Stereo- 
caulon. 
Globules, Globule. Globular apothecia, falling off and 
leaving a hollow wherein it-was inserted. Isidium. 
Orliculus. Flat orbicular apothecia, placed in the pe- 
ridium of the nidularia. 
Stroma. Irregular apothecia in which the spore are 
immersed. Spheeria. 
Spherules, Spherule. Globular receptacles, opening at 
top, and emitting the spore, mixed with a gelatinous pulp. 
Cyphelle. 'Tubercles on the lower surface of the thallus, 
from the cortical substance, and usually white or pale. 
Sticta. 
Pulvinuli. Branched tubercles, or shapeless masses co- 
hering together, and appearing like little shrubs or globes 
formed from the cortical substance of the thallus: they are 
usually black or dark green. Parmelia. 
Soredia. Whitish powder collected in small heaps, com- 
posed apparently of unattached gongyli. Ramalina, Alec- 
torla. 
Nucleus proligerus, Lamina proligera. A cartilaginous 
disk, distinct from the substance of the thallus, scarcely 
ever split, but coming out whole from the apothecia, or 
sometimes dissolving into a gelatinous substance, contain- 
ing spore or gongyli. 
Perithecuum. The visible cartilaginous or transparent 
skin containing the nucleus proligerus. Verrucaria.—It is 
probably present in all apothecia, but in many cannot be 
seen. 
Thalamia. Apothecia which consist of a nucleus proli- 
gerus contained in a perithecium. Variolaria. 
Gongyles, Gongyle, Propagines, Propagacula, Spore, 
Semina. Opake, globular corpuscles, sometimes nestling 
on the surface; still more frequent in the substance, parti- 
cularly the cortical, of the thallus; and constantly present, 
very copiously in the apothecia. © ers 
