— 71 



^ (- 



Ohs. Specimina fuegiana nonnihil a typo et inter se di- 

 screpant, ac formas 2 sequentes separare hausus non 

 sum : 



a) robiistum ; stromatibus ligno indurato infuscato- 

 que superficialibus crustaceis late effuso-pulvinatulis 

 dilformibus (2-10" X 1-3"), crassiusculis, abrupte ob- 

 tuseque marginatis, scrupulosis non v. vix. mammil- 

 losis, laxe hinc inde papillulosis, fusco-rubiginosis ; spo- 

 ridiis elliptico-navicularibus ( 10-15 X 8 [x), fuligineis 

 donatum. 



b) viiserrimum; stromatibusirregulariter sublinea- 

 ribus, flexuosis, ligno dealbato, submucedineo, fragilli- 

 mo innato-effusis, non v. vix pulvinulatis ac marginatis, 

 submammillosis, laxe papillulosis, fusco-rubiginosis ; 

 sporidiis ellipticis v. ovoideis, plus minusve inaequila- 

 teralibus (12-15 X 5-7 [j.), grosse i-2-guttulatis, fuli- 

 aineis donatum. 



r)' 



191. HyPOXYLON PSEUDOPACHYLOMA Speg. (u. Sp.) 



Diag. Stromata corticola, per perdermium persistens 

 erumpentia, superne nuda, longe lateque effusa (2-5" 

 X 1-4") applanata vix pulvinulata (1'" crass.), non 

 V. vix repandula-submarginata,carbonacea, extus intus- 

 que aterrima, fragilia, saepe ob sporas exilientes nigro- 

 -pulvernienta, densiuscule minuteque papillulata ; peri- 

 thecia obovata (750-800 alt. X 250 ;a diam.), dense 

 constipata atra carbonacea superne applanata non pro- 

 minula, ostiolo papillulato minuto ornata; asci cylin- 

 dracei antice obtusc rotundati crasse tunicati 1-foveo- 

 lati, postice in pedicello brevissimo attenuati (75-80 X 

 6 [j.), octospori, paraphysibus parcis filiformibu j crassis 

 inmixti ; sporidia recte v. oblique monosticha elliptico- 

 navicularia utrinque obtusiuscula (9-15 X 4-G [j.) non 

 jrosse l-guttulata, opace fuliginea. 



V o-i 



