18 



ago, with the name of its indefatigable discoverer in that 

 island, M. Bojer, when I obtained from Paris the last number 

 of Fee's Essai sur les Cryptogames des Ecorces Officinales, 

 where it appears under the appellation here adopted. The 

 figure there given is what I call the var. a. with scattered 

 apothecia. Both kinds were found by M. Bojer in the 

 Mauritius. 



STICTA HUMBOLDTII. 



Sticta Humholdtii ; thallo subumbilicato cinereo-fuscescente utrinque 

 dense tomentoso, cyphellis majusculis concoloribus, margine 

 varie lobato, lobis rotundatis, apotheciis sparsis sessilibus nigro- 

 fuscis extus tomentosis. (Tab. XIV.) 



Sticta Humboldtii. Hooker in Humb. et Kunth, Syn. PL JEq. v. 1. p. 28. 

 Humh. Nov. Gen. et Sp. PI. v. 7. p. 86. 



Hab. Ad corticem Befarics, Thibaudice, et Escallonitry in frigidis Pa- 

 ramo de Almaguer, alt. 1430 hexapod. (Regno Novo-Grana- 

 tensi). Humboldt. 



Tltallus effusus, diametro 3 — 4-uncialis, suborbicularis, umbilicatus, 

 centre affixus, in lobos rotundatos, subimbricatos profunda di- 

 visus, lobis iterum breviter irregulariterque lobatis, subundulatis ; 

 cinereo-fuscescens, utrinque dense moliiterque tomentoso-hirsutus, 

 subtus paliidior. Cyphcllce concolores, paululum convexae. Apo- 

 thecia sparsa, numerosa, primum hemisphaerica, demum plana, 

 intense fusca, sessilia, subtus margineque involuto pal lido dense 

 tomentosa. 



The same peculiar smell exists in this, as in some other 

 species of this genus, among which this may well rank as 

 the most beautiful. 



Fig. 1. Plant {jiat. size). Fig. 2. Side view of an apothecium. 

 Fig. 3. Vertical section of an apothecium. Fig. 4. Apothecium 

 seen from above : — magnijied. 



