PLATE III 

 Polar Views of Metaphase of IVIitosis in Animals and Plants 



(except fig. I WHICH IS LATE PROPHASE) 



Figs, i and 2. — Chorthippus parallelus (Orthoptera) ^, 2w = 16 + •^• 

 Smear of spermatogonia. C/. Text-Fig. 11 . (La Cour and Osterstock. 

 Smears, 2B.D. — gentian -violet.) 



Fig. 3. — Lociista migratoria (Orthoptera) o, 2^ = 22 -f x. All 

 except the five smallest chromosomes lie on the edge of the plate. All 

 have subterminal centric constrictions. (Koller, unpublished.) 



Fig. 4. — Eremurus spectabilis, root-tip, 271 — 14. IMedium Flemming 

 — gentian -violet, x 2000. (Upcott, 1936.) 



f 



Fig. 5. — Tradescantia hracteata, pollen-grain, n — 6. Fig. 6. — 

 Brodiea unijfora, pollen-grain, '^? = 6. (La Cour : 2 B.E. — gentian-violet.) 



Fig. 7. — Puschkinia lihanotica, root-tip (Text-Fig. ^), 2n = 10 -\- 4ff. 

 X 1500 (D., 1936 c. : 2B.E. — gentian-violet.) 



Fig. 8. — Tricyrtis hista, root-tip, 2^ = 26. (La Cour : 2B.E.— gentian- 

 violet.) 



