280 WuitE: THE NIDULARIACEAE OF NortH AMERICA 
PLATE 18 
Fics. 1-6. Cyathia hirsuta. 1. Sporangiole, showing attachment, enlarged about 
fifteen times, 2. Spore, 390. 3. Spores and filaments, X 215. 4- Threads of 
outer coating of sporangiole, < 215. 5. Nodose filaments of the funiculus, X 390 
6. Portion of the funiculus, X 110. 7-13. Crucibulum crucibuliforme. 7. Sporangiole, 
15. 8. Sporangiole, with the outer coat peeling off. 9. Small portion of a section 
of a sporangiole, 215. 10, 11. Spores of young specimen, 390. 12. Spores 
of fully mature specimen, showing contraction of inner substance, 390. 13: Small 
portion of the ends of the filaments of the thin membrane covering the mouth of the 
immature specimen, 315. 14. Spores of Migula microcarpa, X 390. 15- Lateral 
portion of outer coat of the sporangioles of same, < 215. 16. Small portion of the 
outer coat of the sporangiole of Crucibulum crucibuliforme, X 215. 17. Section of @ 
sporangiole of Vidula microcarpfa, X 110. 18. Fascicular hairs from the outer wer 
ing of the peridium of Cyathia intermedia, X15. 19. Small portion of the peridial 
wall of Granularia pulvinata, X 215. 20. Sporangioles of Granularia castanea, 
when devoid of peridial covering, 110, as 
