Pyrenomycetse, Xylariacese, Kretzscbmaria. 323 



0,3 mm. diam., papillula minima conoidea prominente; ascis eva- 

 nidis; sporidiis unicellularibus, subfuscis, 18-20 « 10-12. 



Hab. ad ramos decorticatos, Columbus Ohio U. St. Amer. bor. 

 (Kellerman). — Ab llypoxylo atro-rufo sporidiis amplioribus im- 

 primis recedit. 

 34. Hypoxylon lilliputianum Syd., Ann. Myc. YIII (1910) p. 37. — 4433 

 Stromatibus gregariis, rotundatis, ca. 1-3 mm. latis, 1 mm. cras- 

 sis, primo fusco-brunneis, tandem atris, intus albis, rugulosis ; pe- 

 ritheciis ca. 5-25 in disco stromatis immersis, ostiolis prominulis; 

 ascis cylindraceis p. sp. 20-30 >* 3-3 '/j, octosporis ; sporidiis elli- 

 psoideis, 1-guttulatis, utrinque obtusis, continuis, fuscis, 3 '/^-^ ^ 2. 



Ha}). ad lignum cariosum, Davao, Mindanao in ins. Philippi- 

 nensibus (E. B. Copeland). 



KRETZSCHMARIA Fr. Syll. IX p. 565, XI p. 287, XIY p. 512, XVI 

 p. 449, XVII p. 614. 



1. Kretzschmaria rugosa Earle, BuU. of the New York Bot. Gard. 4434 

 (1904) p. 311. — Stromatibus usque ad 1 cm. lat., irregulariter 

 globosis V. subdepressis. breviter stipitatis v. subsessilibus, super- 

 ficie pallide nigra, rugosa, contextu spongioso-fibroso, albo, stipite 



2-8 =* 1-2 mm. ; peritheciis latis, 1 mm. diam., nigris, globosis, in- 

 fossis sed prominentibus, monostichis, sparsis, non confertis, ostiolo 

 minuto, punctiformi, inconspicuo prteditis; ascis cylindraceis, 150- 

 200 « 8-10, evanescentibus; paraphysibus tenuibus, fihformibus, 1 jx. 

 cr. ; sporidiis monostichis, inoequilateraUbus, ssepe curvis, primnm 

 hyalinis 1- v. 2-guttulatis, dein brunneis, opacis, 25-28 «8-10. 



Hdb. in trunco emortuo in silvis, Molyneaux Estote, Isl. of St. 

 Kitts Amer. bor. (Britton et Cowell). 



2. Kretzschmaria stilbophora Eehm, Anu. Mycol. Y (1907) p. 526. 4435 

 — Stromate communi late expanso, nigrescente, stilbophoro, cru- 

 staceo-membranaceo ; stromatibus singularibus arcte congregatis, 

 fere crustaceis, verticaliter constipatis et conglutinatis, obconicis, 

 deorsum angustatis denigratisque, superne convexiusculis. centro 

 papillulatis. primitus strato pruinoso cinereo-argenteo demum de- 

 ciduo obductis, dein atris carbonaceis, 1 mm. alt., 0,7-0,9 mm. lat. ; 

 peritheciis oblongis, c. 250 •!. long. ; ascis cyUndraceis, perlongis, 

 8-sporis; sporidiis elUpsoideis, subnavicularibus, 1-ceUularibus, fu- 

 scis, 10-12 « 5, monostichis; paraphysibus fiUformibus. 



Hah. ad ramum arboris frondosie, Sao Leopoldo, E-io grande 

 do Sul, Brasiiia iRick S. J.). Stilbum elongatum epistromaticum, 



