LECANOEACEAE. 545 



2. Leptotrema bahlslnum (Ach.) Muell. Arg. Mem. Soc. Phys. Hist. Nat. 



Gen&ve 29": 12. 1887. 



Thelotrema lepadinum var. iahianum 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 bispfirum (Nyl.) Eiddle. 



Thelotrema hisporum 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 ui Paris. But Nylander 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 i 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, Pertn- 

 saria leioplaca (Ach.) Schaer. 



5. Leptotrema glaucfiscens (Nyl.) MueU. Arg. Flora 65: 499. 1882. 



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



On bart, 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 Savenelii 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. B. 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. LECANOEACEAE. 



Spores simple. 



Paraphyses simple and free. 1. Lecanora. 



Paraphyses branched and anastomosins. 2. Ochrolechia. 



Spores plurilocular. 3. Haematomma. 



1. LEOANOBA Ach. 



Growing on rocks. _ 1- ^' hadia. 



Growing on bark or old wood. 



Disk of apothecia distinctly brown. 2. L. suifmca. 

 Disk of apothecia not brown. 



Disk typically yellowish-green. 3. L. varia. 



Disk typically flesh-color. 4. L. cinereocamea. 



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

 Liohen ladius Pers. in TJsteri, Ann. Bot. 7: 27. 1794. 



On limestone, Bleuthera Island, at Eleuthera Point : — widely distributed in 

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



