+ 
No. 5.] USTILAGINEZ OF CONNECTICUT. 43 
Fig.14. Urocystis Cepule from Allium Cepa. 
Fig.15. Urocystis occulta from Secale cereale. 
Fig. 16. Entyloma lineatum from Zizania aquatica. 
Fig.17.. Entyloma Lobelie from Lobelia inflata. 
Fig. 18. Entyloma Nymphee from Nymphea odorata. 
Fig. 19. Doassansia opaca from Sagittaria variabilis. This 
is a cross section of a spore ball merely showing one end; 
a, superficial cortex of sterile cells; b, spores filling the 
interior of éall. 
Fig. 20. Tracya Lemne from Spirodela polyrrhiza. This is 
a cross section of a spore ball merely showing one end; 
a, superficial layer of spores; b, sterile hyphz filling in- 
terior of ball. 
Figs, 21-25. Germination of spores of smuts. Magnified 
about 650 diameters. 
Fig. 21. Germination of spore of Ustilago utriculosa from 
Polygonum Pennsylvanicum in water; a, promycelium; 
b, sporidia. , 
Fig. 22. Germination of spore of Doassansia opaca from Sag- 
ittaria variabilis in water; a, promycelium; b, sporidia; 
c, secondary sporidia fallen off. 
Fig. 23. Germination of spore of Ustilago Avene from Ave- 
na sativa in horse dung; a, promycelium; 6, infection 
threads. 
Fig. 24. Germination of a sporidium of Ustilago Sorghi into 
an infection thread. 
Fig. 25. Small portion of a group of sporidia developed from 
promycelium of Tolyposporium Eriocauli in potato agar. 
Fig. 26. Cross section of epicotyl of broom corn. infected 
by Ustilago Sorghi; a, epidermal cells; b, parenchyma cells of 
cortex ; c, woody cells of central cylinder, and d, mycelium of 
the fungus ramifying through the parenchyma cells of the 
cortex. Magnified about 125 times. 
Figs. 27-55. Sori of various smuts, showing general ap- 
pearance and parts of different hosts infected. Natural size 
except where otherwise indicated. 
