J. Rick S. J. — Xylariaceas Riograndenses 
Stromaíe erecto (v. curvato), clavato, atro, 25-38 mm 
(2-3 mm cr.), stipite tenui, giabro, 12-14 mm longo, clavula 
ütrimque attenuata v. aequali, supra obtusa; perith. globo- 
sis, prominulis (400-600 a diam. obtuse papillatis); aseis cy- 
lindraceis stipitatis (70-100 X 5-6 p. sp.-, sporidiis arcte fu- 
siforniibus (v. oblongis) rectis curvulisve, fuseis (fusco-ba- 
cliis) 15-16 X 4. Hab. in lignis. Affines: X. liypoxylon, f. 
biceps, et X. arbusculo . 
CLAVIS AXALYTICA 
Sectio III — “Apictjlatae” 
1) vale fascicula to-ramosa, alta, grisea . deserticola 
2) minor, solitária vel congregata, non fasciculata, 
brunnea, longitudinaliter st ria ta . j apiculafa 
( arümciãa 
3) minor griseo-picta atra, ex bulbo pannoso exsur- 
gons. Berheleyi 
4) minor, atra, sine bulbo. corãovensis 
5) minima, peritheciis paneis. ramulata 
Sectio JV - HYPOXYLON 
Xylapja HYPOxyLON (Link») Gkêv. Lit. : Sace. I, 333; Flora Edin- 
burg., pg, 355; Myc. Notes, pg. 1910, fg, 2 964; Nitsehke., Pyr. 
genn., pg. 5 (sub Cavaria Tiypox,). [=J 
Eximie polymorpha. Stroma conidiophorum elatum, 
2-10 cm longum, 2-6 mm cr.; nigrum v. fuligineum, sulcato- 
rogosum, e basi pannosa ascendens, supra album, apiee pler- 
rumque rosco-canieum, simples# biceps, vel applanato-fur- 
eatum v. multipliciter cristatum v. repetite dichotomum v, 
v. quaquaversus divisum. Coniclia oblongo-fusoidea 8-13 X 
2-3,5 u, Stroma pyrenophorum e basi pannoso-bulbillosa vio¬ 
lácea ascendens, stipite 4-1 cm longo v. snbnullo, fasciculato- 
Gonnatum v. saltem gregarium. Clava a stipite discreta v. 
sen sim transiens, simplex v. medio divisa v. genuína v. plu- 
ries divisa, tereti-cylindrica v. compresso-laminata, grisea, 
