320 Pyrenomycetae, Xylariacese, Hypoxylmi. 



forti solum visibili, intus carbonaceo-duris, aetate fuligineo-pulve- 

 raceis; peritheciis stipatis, immersis, ovato-ellipticis, 600 « 200, collo 

 brevi superficiem attingentibus ; ascis, non visis; sporidiis oblongo- 

 ellipticis, utrinque rotundatis, fuscis, demum brunnescentibus, ini- 

 tio biguttulatis, 7-9 ^ 3-4 '/.,. 



Hdb. in cortice duro in silva, Sao Leopoldo, Brasilia. 



24. Hypoxylon glomerulatum Theiss., Ann. Mycol. VI (1908) p. 345. — 4423 

 Peritheciis minutis 300-700 [u diam. singulis v. paucis aggregatis 

 V. in pulvinulos discretos 3-5 mm. latos stroraate parcissimo in- 

 terjecto confluentibus, primo furfure testaceo-purpureo conspersis, 

 dein nigrescentibus, vertice prominulis, umbilicatis, ostiolo nigro 

 punctiformi dein pertuso; ascis magnis 100-130 «* 12-15, pedicello 

 firmo usque ad 40 \y. lougo; sporidiis octonis, plano-convexis, ra- 

 rius recte ellipsoideis, utrinque rotundatis vel subapiculatis, ater- 

 rimis, grosse guttatis, 18-23 » 10-12. 



Hdb. ad ramulos exsiccatos in silvulis (« capao » dictis), Sao 

 Leopoldo Brasilia. — Ab Hyp. rubello Penz. et Sacc. sporidiis la- 

 tioribus nec fusoideis nec acutis dignoscenda species. 



26. Hypoxylon pumillo Sacc et Fairm. in Saccardo Micromycet. A- 4424 

 mer. novi, Journ. of Myc. XII (1906) p. 47. — Minutum, extus 

 e roseo isabellinum, breviter efPusum, rarius in acervulos exiguos 

 1 mm. latos limitatum, plerumque 4-6 mm. long., 2 mm. iat,, 

 applanatum v. vix convexulum; peritheciis unistratosis perexiguis, 

 globulosis vix 200 [j.. diam.; medietate superiori discretis, hinc 

 prominulis, extus tenuiter roseo-pruinosulis, intus nigris, ostiolo 

 brevissimo lato obtuso, minutissime pertuso, fere deterso hinc ni- 

 gricante, 90-100 [x. diam-, ascis cylindricis deorsum sensim te- 

 nuato-stipitatis, apice rotundatis, 130 * 6-8, parte sporif. 70-80 [j.. 

 longa, octosporis; paraphysibus filiformibus ascos multo superan- 

 tibus; sporidiis oblique monostichis, ovato-oblongis, imBquilateris, 

 12-14 «5,5-6, fuligineis, crasse 2 guttatis, rarius guttulis inaequa- 

 libus 3-4 foetis. 



Hab. in ligno putri in silvis pr. Lyndonville, New York, Anier. 

 bor. — Nonnihil affine //. nectrioideo Sacc. et Trotter et H. ne- 

 ctrioidi Speg. a quibus mox dignoscitur peritheciis applanato-eflfu- 

 sis, multo minoribus. Stroma, cui perithecia innituntur est macu- 

 liforme, pariter roseo-isabellinum. Species pertinet ad subgenus 

 Placoxylon, Sect. a. 



26. Hypoxylon rubigineo-areolatum Rehm in Theiss., Ann. Mycol. YI 4425 

 (I908j p. 346. — iEqualiter longe lateque efifusum, 1-1 '/^ mm. 



