Seaver: Study of Genus Lamprospora 
7 
Spores at maturity 12-15 g. in 
diameter, reticulations very 
delicate, scarcely more than 
lines over the surface of the 
spore. 2. L. 
Reticulations deep, extending 2 g or 
more beyond the periphery of the 
spore and appearing as a broad 
band about its surface. 3. L. 
Ridges not giving rise to reticulations. 
Ridges usually curved and extending 
in various directions as in some 
species of Ascobolus. 4. L. 
Ridges giving rise to two distinct 
rings about the spore. 5. L. 
Spores not marked with ridges. 
Spores covered with spines. 
Plants not exceeding 1 mm. in diam- 
eter, spines short, blunt. 6. L. 
Plants at maturity 3-5 mm. in diam- 
eter, spines long and very sharp. 7. L. 
Spores covered with warts or tubercles. 
Tubercles large, twelve or rarely 
fourteen or fifteen about the 
circumference of the spore. 
Individual tubercles not rough. 8. L. 
Individual tubercles covered 
with minute roughenings, giv- 
ing them a translucent ap- 
pearance. 9. L. 
Tubercles small, about twenty or 
more in the circumference of the 
spore. 
Spores subglobose, on bark 
among moss. 10. L. 
Spores perfectly globose, on soil. 
Plants pale orange. 11. L. 
Plants violaceous. 12. L. 
Spores smooth. 
Plants pale orange. 
About 3 mm. in diameter at maturity, 
crowded, on burnt ground. 13. L. 
About 1 mm. or less in diameter, scat- 
tered, on damp soil. 14. L. 
Plants bright red. 
Several mm. in diameter, spores 15—18 g 
in diameter, on damp soil. 15. L. 
Less than 1 mm. in diameter, spores 8-9 
g in diameter, on foliage of Sequoia. 16. L. 
Plants pallid or creamy. 17. L. 
dictydiola. 
areolata. 
ascoboloides. 
annulata. 
spinulosa. 
Crec’hqueraultii. 
tuberculata. 
Maireana. 
Wrightii. 
tuberculatella. 
amethystina. 
carbonaria. 
haemastigma. 
Constellatio. 
gemma. 
discoidea. 
