LECANORACEAE. 545 



2. Leptotrema bahianum (Aeh.) Muell. Arg. Mem. Soc. Phys. Hist. Xat. 



Geneve 29^: 12. 1887. 



Thelotrema lepadinum var. 'baliianum 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. 1864. 



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, Xouv. 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 ill Paris. But Nylander says that the spores 

 are 1 to 2 in the ascus and 80-115 x 34— 36 xi 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 tlie ascus the size should 

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

 saria leioplaca (Acli.) Schaer. 



5. Leptotrema glaucescens (Nyl.) Muell. Arg. Flora 65: 499. 1882. 



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 Eavenelii 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 compunctum (Sm.) Muell. Arg. Flora 70: 400. 1887. 



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



On bark. New Providence : — Cuba ; Costa Rica : Colombia ; Brazil. Mueller 

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

 published in Hedwigia 34 : 36. 1895. 



Family 9. LECANORACEAE. 



Spores simple, 



Paraphyses simple and free. 



Paraphyses branched and anastomosing. 

 Spores plurilocular. 



1. LECANORA Ach, 



Growing on rocks. 



Growing on bark or old wood. 



Disk of apothecia distinctly brown. 

 Disk of apothecia not bro^voi. 



Disk typically yellowish-green. 

 Disk typically flesh-color. 



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

 Lichen hadius Pers. in Usteri, Ann, Bot. 7: 



On limestone. Eleuthera Island, at Eleuthera Point : — widelv distributed in 

 Europe ; local in North America : mountains of Brazil, Peru, and Chili, 



