WHuiTE: Tur NIDULARIACEAE OF NortoH AMERICA 279 
Explanation of Plates 
The figures on Plates 14, 15, 16 and 17 were drawn one quarter larger than 
indicated. Those on Plate 18 were made twice the size. The microscopic details were 
drawn with a camera lucida and reduced on the same scale, as above noted. 
PLATE 14 
Fic. 1. Cyathia Poeppigii, nat. size. 2. The same, enlarged about three times 
after moistening. 3. Single peridium in dry condition, 4. Spores, X 335. 5. Cyathta 
Ber, #leyana, nat. size. 6. Peridium of same, enlarged three times, 7. Spores, * 335. 
8 Cyathia intermedia, pat, size. 9. Peridia, enlarged twice, one in dry condition, 
the other after expanding when moistened, 10. Spores, X 335. II. Cyathia hirsuta 
Nat. size. 12. Group, enlarged about three times. 13. Spores, * 335. 14, 15. 
Cyathia hirsuta infundibuliformis, enlarged about three times. 16. Cyathia dura, 
Rat. size. 17, 18, Peridia, enlarged twice. 19. Spores, X 335. 20. Cyathia Mon- 
tagnei, nat. size. 21. Peridium, enlarged twice. 22. Spores, X 335- f 
PLATE 15 
Fic. 1. Cyathia melanosperma, nat. size. 2. Single peridium, nat. size (after 
moistening), 3. Single peridium, enlarged about three times. 4. Spores,  335- 5- 
Cyathia pallida, nat. size. 6. Mature and young peridia, enlarged twice. 7. 
Pores, X 335. 8. Cyathia lentifera, nat. size. 9, 10, 11, 12. Different specimens 
showing character of growth and shape, enlarged twice. 13. Spores, X 335- 14 
Cyathia rufipes, nat. size. 15. Peridia, enlarged twice. 16. Spores, X 335. 
1]. Cyathia stercorea; nat. size. 18, 19. Different specimens showing character of 
growth and shape, enlarged about three times. 20. Spores, X 335- 
PLATE 16 
Fics. I, 2. Cyathia stercorea, showing additional types and characteristics, en- 
larged twice. 3; Cyathia rugisperma, natural size. 4. Peridia enlarged twice. 5 
Spores, < 335. 6. Spores, 585. 7. Crathia Wrightii, natural size. 8, 9. Peridia, 
nlarged twice, 10. Crucibulum crucibuliforme,natural size. 11. Section of sporangiole, 
X 50. 12. Group of "peridia, enlarged twice. 13. Spores, X 335- 14. Group of 
Peridia from the Schweinitz specimens of Crucibulum juglandicolum. 15. Spores 
the same, 335. 16. Cyathia (?) sp., natural size, 17. Nidula candida, 
Set tine. 18, 19. Peridia, somewhat enlarged. 20. Spores and filament,  335- 
21, 22. Spores of Gvathia (?) sp., X 335. 
PLATE 17 
at. Nidula microcarpa, nat, size. 2, Peridia, enlarged twice. 3. Section- 
reeset about five times, 4. Sporangiole showing torn outer covering, enlarged about 
twenty-five times, 5. Sporangiole still in its outer covering, enlarged twelve times. 6, 
mo Nidula microcarpa rugispora, nat. size. 8, Peridium, enlarged three 
eo Spores, X 335- 10. Granularia pulvinata, nat. size, reduced from draw, 
aor is Hasselbring of Nidularia Alabamensis Atk. 11. Granularia pulvinata, 
V oer ae Peridia, enlarged three times. 13. Spores and filaments, > 345... £4- 
=o Peridia, the walls of which have almost completely fallen away. 15. Spores. 
dia, 16. Spores, X 335- 17. Granul ria castanea, nat. size. 18. Group of peri- 
20 Pi arged twice, 1g. Irregular peridia, having grown together, enlarged twice, 
~ fot of Granularia pulvinata, X 335 (Nidularia Alabamensts Atk.). 21. 
ee Maria rudis, enlarged twice. 22. Spores, X 335- 23- Sporangioles, X 15. 
