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 

 varle lobato, lobis rotundatis, apotheciis sparsis sessilibus nigro- 

 fuscis extus tomentosis. (Tab. XIV.) 



Sticta Humboldtii. Hooker in Hiimh. et Kuntli^ Syn. PL jEq. v.l.p. 28. 



Humh. Nov. Gen. et Sp^ PL v. 7. p* 86. 



Hab. Ad corticem Befari<je^ Thibaudi(E^ et Escallonia:^ in frigidis Pa- 

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

 tensi). Hiimholdt. 



TJiallus efFusus, diametro 3 — 4-uncialis5 suborbicularis, umbilicatus, 



centro affixus^ in lobos rotundatos, subimbricatos profunde di- 



visus, lobis iterum breviter irregulariterqiie lobatis, subundulatis ; 



cinereo-fuscescens, iitrlnque dense molliterque tomentoso-hirsutus, 



subtus pallidior. Cyphellce concolores, paululum convexae. Apo^ 



thecia sparsa, numerosa, primum heraisphasrica, demum plana, 



intense fusca, sessilia, subtus margineque involuto pallido dense 

 tomentosa. 



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

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

 the most beautiful. 



->k 



Fig. 1. Plant {nat size). Fig. 2. Side view of an opotliecium. 



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

 seen from above : — mag?ii/ied. 



