GLOSSARY. 315 



TETRASPORES (tetra, Gr. four, + spores). 



Certain spores produced in fours. 

 THALLUS (thalhs, Gr. a frond). 



An expansion somewhat resembling a leaf. 

 TORULOSE (toritlus, L. a little cord). 



Almost synonymous with moniliform. 

 TRICHOGONIA (thrix, Gr. the hair, + gonos, generation). 



The female reproductive organs in Batrachospernis. 

 TRICHOME (thrix, Gr. the hair). 



The thread or filament of filamentous algee. 

 TRICHOTOMOUS (fricha, 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. 

 UNICELLULAR (units, L. one, + cella, a cellar). 



Literally, composed of one cell. 

 VACUOLE (racuus, L. empty). 



Drops which are seen in the interior of the protoplasm 



of cells. 

 VAGINA, VAGINATE (vagina, L. a sheath). 



A sheath, sheathing. 

 VERRUCOSE (verruca, L. a wart). 



Covered with warts. 

 VERTICILLATE (verticillus, L. a whorl). 



Arranged in whorls. 

 VESICLE (vesicula, L. a little bladder). 



A bladder-like cavity. . 

 VIBRATILE (vibro, L. to quiver or shake). 



That moves to and fro, or vibrates. 

 ZOOGONIDIA (zcon, Gr. animal, + gonidia, which see). 



Gonidia endowed with active motion. 



ZOOSPORANGIUM, ZoosFORANGE (zoon, Gr., an animal, + sporan- 

 gium) . 



Sporangium enclosing zoospores. 

 ZOOSPORES (zod'n, Gr. an animal, -f spora, a spore). 



Locomotive spores. 

 ZYGOSPORE (zygos, Gr. a yoke, marriage, + spora). 



A spore resulting from conjugation- 



