84 



9. PoLYGAULiONA BoLANDERi Hue ; Lecatiora 

 (sect. Squamaria) Bolanderi Tuck. Observ. lichc- 

 nolog., in Proceed. americ. Acad. arts and scienc, 

 t. V, 1864, p. 206 ; L. (sect. Cladodium) Bolanderi 

 Tuck., Lich. Californ., 1866, pp. 18 et 19, Gêner. 

 Lich., p. 111, et Synops. North Americ. Lich , I, 

 p. 181. 



Thallus in specimine authentico, in Mus. paris., 

 ochroleucus, madefactus autem viridi stramineus, 

 fruticulosus, opacus et hydrate kalico magis flavens; 

 stipites erecti, teretes et simul nodosi, 5-10 mill. 

 aiti, 1,5-2,5 [j. crassi, dichotome ramosi atque in 

 apice obtnsi papillosique. Cortex totura slipitem 

 circui^idans, nudus aut inlerdum corpusculis flavidis 

 repletus ac 60-70 [ji crassus ; in eo hyphœ fastigialse, 

 axi perpendiculares et paucse obliquse, 5-8 p. crassa3, 

 lumine 1-1,5, raro 2 [j. lato, arcte coalilte, [)arum 

 ramosse ac arliculataî articulis 3-6 m. longis cum 

 sepimentis sat crassis. Gonidia viricia, protococ- 

 coidea, 7-14 [x lala, niembrana incrassata, in glo- 

 merulis magnis aggregata, sub cortice plerumque 

 vigentia et passim intra medullam penetrantia; 

 inter ea hyphse 4-5 p. crassa3, pariete parum crasso, 

 articulatee, ramosœ ramis anastomosanlibus et inter 

 eos magni meatus conspicui. Hyphse meduUares axi 

 parallelee, 3-5 \x crassse, lumine 1-1,5 [j. lato, multum 

 ramosse et arcte coalitœ. Apothecia 1-2,5 mill. lata, 

 in stipitum vel ramorum apice terminalia, in basi 

 constricta, excipulo thallo concolore et lœvi, margine 

 tumido, parum prominente, intègre aut granuloso 

 atque disco carneo llavente, piano et albo pruinoso 

 instructa. Excipulum e thallo formatum. Perithecium 



