GLOSSARY. 315 
TeTRAsPoREs (tetra, Gr. four, + spores). 
Certain spores produced in fours. 
Tuas (thallos, Gr. a frond). 
An expansion somewhat resembling a leaf. 
ToruLoseE (torulus, L, a little cord). 
Almost synonymous with moniliform. 
TricHogonta (thriz, Gr. the hair, + gonos, generation). 
The female reproductive organs in Batrachosperms. 
TricHomE (thriz, Gr, the hair). 
The thread or filament of filamentous alge. 
TricHotomous (tricha, Gr. threefold, + temno, I cut). 
Dividing in threes. 
Truncate (truncus, L. a stump). 
Terminating very abruptly. 
TuBERCULATE (tuberculum, L. a pimple). 
Covered with warts or tubercles. 
UnicELiunar (unus, L. one, + cella, a cellar). 
Literally, composed of one cell. 
VacuoLe (vacuus, L. empty). 
Drops which are seen in the interior of the protoplasm 
of cells. 
Vaerna, Vacinate (vagina, L. a sheath), 
A sheath, sheathing. 
Verrvcose (verruca, L. a wart). 
Covered with warts. 
VERTICILLATE (verticillus, L. a whorl), 
Arranged in whorls. , 
Vusicie (vesicula, L. a little bladder). 
A bladder-like cavity. 
Visrative (vibro, L. to quiver or shake). 
That moves to and fro, or vibrates. 
Zodconrp1a (zon, Gr. animal, + gonidia, which see). 
Gonidia endowed with active motion. 
ZodsPorancium, ZodsPoRanasE (zodn, Gr., an animal, + sporan- 
gium). 
Sporangium enclosing zoospores. 
Zodspores (zoon, Gr. an animal, + spora, a spore). 
Locomotive spores. 
Zyaosrore (zygos, Gr. a yoke, marriage, + spora). 
A spore resulting from conjugation: 
