LICHENES IN INSULA TRINIDAD A PROFESSORE R. 

 THAXTER COLLECTI. 



By Edward A. Vainio. 



Received July 10, 1922. Presented by R. Thaxter. 



Note. The following enumeration, which Dr. Vainio has been so 

 kind as to prepare for publication, includes a portion of a small col- 

 lection of lichens made largely in the vicinity of Port of Spain, Trini- 

 dad, B. W. L, from January to April, 1913. (R. T.) 



1. Pertusaria commutata Mull. Arg. (Vain. Et. Lich. Bres. I, 

 1890, p. 105). 



Ad corticem arboris. Maraval Valley (No. 8). Ster. 



2. Pertusaria torulosa Vain. Addit. Lich. Antill. (Ann. Ac. 

 Scient. Fennicae, Ser. A, torn. VI, 1915), p. 31. 



Ad corticem arboris. La Seiva Valley (No. 100). 



3. Placodium ochraceum (Nyl.) Vain. Lecanora aurantiaca var. 

 ochracea Nyl. Et. Lich. de 1' Alger (1854), p. 325 (sec. Herb. Nyl.) 



Ad saxa corallina in Gasparee Island (No. 62). Fert. 



4. Sticta Weigelii (Ach.) Vain. (Et. Lich. Bres. I, p. 105) f. 

 Beauvoisii (Del.) Stizenb. Griibchenflecht. (1895), p. 133. 



Ad corticem arboris. Sangre Grande (No. 86). Apotheciis novel- 

 lis. 



5. Pannaria stylophora Vain. (Addit. Lich. Antill. p. 102) 

 f. disserpens Vain. Lich. Ins. Philipp. Ill (Annal. Ac. Scient. Fenn., 

 Ser. A, torn. XV, 1921), p. 9. 



Ad corticem arboris ( Theobroma cacao), Sangre Grande (No. 75). 

 Fert. 



6. Pannaria rubiginosa (Thunb.) Del. f. caesiocinerea Vain., 

 1. c, p. 12. 



Ad corticem arborum. Sangre Grande (Nos. 84, 87). Fert. 



7. Coccocarpia ciliata (Bel.) Vain. Thallus parce isidiosus. 

 Etiam in specim. orig. Collem. ciliati Bel. (Voy., p. 130), n. 30981 

 in herb. Nyl., thallus est parce isidiosus. 



Ad folia exarida arboris. St. Ann's Valley (No. 49). Ster. 



