EXPLANATION OF PLATE XII 



Lindhladia rffiisa (Ehr.) Rost., p. 204. 

 Fig. L Friictirtcation, natural size. 

 Fig. 2. Portion of same in section, X 3. 



R,li(ular'ui lyropfiJo/i Bull., p. 210. 

 Fig. 3. Residual capiilitial structiire, the spores lilown a\va\-; aliout nat- 

 ural si/e. 



Lull- lid I urn spli-ndcns Morg., p. 211. 

 Fig. 4. Fructification, a large one, natural si/e. 

 Fig. 5. Same in section, X 3. 



Jrcyria fcrriKjima Sauter, p. 253. 

 Fig. 6. Three sporangia, magnified about 10 times. 

 Fig. 6 a. A single spore, magnified. 

 Fig. 6 h. Capiilitial thread. 



Licca I'ariahilis Schrad., p. 200. 

 Fig. 7. Sporangia, magnified about 6 times. 

 Fig. 8. Spore, magnified to show surface characters. 



Tnbifira caspary'i (Rost.) Macbr., p. 207. 

 Fig. 9. A group of sporangia; shows the pseudo-columellic ; X about 5. 



Licca hiforis Morg., p. 201. 

 Fig. 10. Sporangia dehiscent, magnified about 10 times. 



Orcadclla opcrcitlala U'ing., p. 203. 

 Fig. 11. Sporangia, magnified about 30 times. 



Crihraria argillacca Pers., p. 218. 

 Fig. 12. Sporangia, magnified about 10 times. 

 Fig. 13. A single sporangium, X about 40. 

 See also Plate XVIL, Fig. 1. 

 Tuhifera ferruginosa (Batsch) Macbr., p. 206. 

 Fig. 14. Sporangia magnified to show apiculate tops. Cf. 



C.omatricha cllisii Morg., p. 184. 

 Fig. 15. Sporangium, X 40. 

 Fig. 15 a. A single spore, X 1000. 



Co /rial rich a pulc/iclla (Bab.) Rost., p. 183; vid. p. 284. 

 Fig. 16. Sporangium, X 20. 

 Fig. 16 a. A single spore, X 1000. 



Corriatriclia suhcacspitosa Peck, p. 282. 

 Fig. 17. Sporangium, X 20. 

 Fig. Ma. A single spore, X 1000. 



Coinatricha (jiacilis \\'ingate, p. 184. 

 Fig. 18. Sporangium, X 20. 

 Fig. 18 a. A single spore, X 1000. 



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