— 1047 — 
290. Hyalotheca burmensis W. and G. S. West. — Cundinamarca : n° 23 . 
Long-, 19-20 y ; lai. 27-28 a. 
291. Desmidium Baileyi (Hai.fs) Nordst. — Antioquia: n os 1, 2, 3 and 5 . Ali lhe 
specimens observed were letragonal. 
292. Desmidium aptogonum Bréb — Anlioqnia: n os 1, 2 and 5 . 
293. Desmidium Swartzii Ag. Cundinamarca : 11° 22. 
Yar. quadrangulare (ICütz, ) Roy and Biss. (— D. quadrangulatnm Ralfs). — Cun- 
dinamarca : n° 22 and 23 . 
294. Desmidium æquale W. and G. S. West. 
Long. cell. 17-19 y; la t . 38 - 4 o y; crass. 32-33 y (PI. XXIII, fig. 53 ). 
Antioquia: n° 10 (abundant). Cundinamarca: n» 23 . 
This species bas only previously been observed from lhe United States. 
296. Desmidium cylindricum Grev. — Cundinamarca: n os i 4 , a 3 and 24. 
296. Gymnozyga moniliformis Ehrenb. — Cundinamarca : n° 24. 
Division III. STEPHANOKONTÆ 
Family Œdogoniaceæ 
297. Œdogonium Borisianum (Le Cl.) Wittr. 
Crass. cell. veget. 17-17,6 y ; altit. 4-5 plo major; 
» oogon. 33-38 y ; » 48-78 y ; 
» oospor. 32-36 y ; » 47-63 y. 
Antioquia : n° 9. Cundinamarca : n° 23 . 
ïhe form observed was rallier more slender than tbe average for this species. The 
oogonia were solitary or up to four seriate. 
298. Œdogonium undulatum (Bréb.) A. Br. — Cundinamarca: n° 14. 
299. Œdogonium plusiosporum Wittr. 
Forma oosporis paullo minoribus oogoniis minus complentibus. 
Crass. cell. veget. 1 2 - 1 3 y; altit. 3 - 4 -plo major; 
» oogon. 28 y; » 38 y; 
» oospor. 25 y; » 25 y. 
Cundinamarca: n° 16. 
300. Œdogonium tapeinosporum Wittr. forma oogonia binis. 
Crass. cell. veget. 3 , 5 - 5 y; altit. 3 1 / 2 6-plo major; 
» oogon. 16-17 y; » 1 3 - 1 4 y ; 
» oospor. 1 3 - 1 4 y; » 12 y (Text-fig. 3 A). 
Antioquia: n° 10. 
