LECAXOEACEAE. 545 



2. Leptotrema bahianum (Ach.) Muell. Arg. Mem. Soc. Phvs. Hist. Nat. 



Geneve 29 s : 12. 1887. 



Thelotrema lepadinum var. bahianum Ach. Meth. Lich. 132. 1803. 



On bark, New Providence, along Soldier's Road : Cuba ; Costa Rica ; Colombia ; 

 Brazil. 



3. Leptotrema simplex (Tuck.) Riddle. 



Thelotrema simplex Tuck. Proc. Am. Acad. 6: 271. 1S64. 



On bark. Andros. along road to Conch Sound, and along road to Morgan's Bluff, 

 and New Providence : Cuba. 



4. Leptotrema bisporum (Nyl.) Riddle. 



Thelotrema bisporum Nyl. apud Hue, Nouv. Arch. Mus. Nat. Hist. Paris 

 III: 3: 96. 1891. 



On bark. Great Bahama, near Eight Mile Rocks : Guadeloupe. 



The specimens agree exactly with the external characters of the type preserved 

 in the Museum d'Histoire Naturelle in Paris. But Xylander says that the spores 

 are 1 to 2 in the ascus and 80 115 x 34 36 , in size; while the present material 

 shows spores 2 to 4 in the ascus and only 38-50 x 14-18 in size. It is to be ex- 

 pected, however, that with a larger number of spores in the ascus the size should 

 be smaller. A similar condition is found in species of Pertusaria, for example, Pertu- 

 saria leioplaca (Ach.) Schaer. 



5. Leptotrema glaucescens (Nyl.) Muell. Arg. Flora 65: 499. 18S2. 



Thelotrema glaucescens Nyl. Ann. Sci. Nat. IV: 19: 499. 1882. 



On bark, Andros, along road to Conch Sound : southern United States ; Cuba ; 

 Porto Rico. 



6. Leptotrema Wightii (Taylor) Muell. Arg. Flora 65: 499. 1882. 



Endocarpon Wightii Taylor in Hook. Journ. Bot. 6: 155. 1847. 

 Thelotrema Bavenelii Tuck, in part, (fide Muell. Arg. in herb.) 



On bark, Abaco, at Old Kerr's Point : widely distributed in the warmer regions 

 of both hemispheres. 



7. Leptotrema compiuictum (Sm.) Muell. Arg. Flora 70: 400. 1887. 



Lichen compunctus J. E. Smith apud Ach. Meth. Lich. 143. 1803. 



On bark. Now Providence: Cuba: Costa Rica: Colombia: Brazil Mueller 

 (1. c.) misspelt the name as " compacto," but corrected the error in a list of errata 

 published in Hedwigia 34 : 3G. 1895. 



Family 9. LECANORACEAE. 



Spores simple. 



Paraphyses simple and free. 1. Lecanora. 



Paraphvses branched and anastomosine. 2. Ochrolechio, 



Spores plnrllocular. :; Haematomma, 



1. LECANORA Ach. 



Growing on rocks. 1. &. bcdto. 

 .rowing on bark or old wood, 



Disk of apothecla distinctly brown. 2. /-. mihfusca. 

 Disk of apothecla not brown. 



Disk tvpicallv vciin wish-green. S. 1. rutin. 



Disk typically flesh-color. 4. /.. olnereooarnea. 



1. Lecanora badia (Pers.) Ach. Lich. Univ. 407. 1810. 



Lichen badius Pers. in Usteri, Ann. Bot. 7: 27. 1794. 



On limestone. Eleuthera Island, at Eleuthera Point : widely distributed In 

 Europe; local in North America: mountains of Brazil. Pern, and Chill. 



