108 Sphffiriaceae, Allantospor», Valsa. 



VALSA Fr. S. Veg. Scand. p. 410 (emead). Sacc. Consp. Gen. Pyr. 

 p. 4 (Etym. Valsa est nomen casuale ab Adansonio conditum et 

 a Scopolio adhibitum pro fungis variis, pneprimis Xylaria. Hy- 

 poxylon, posterius a Friesio ad hodiernas valsaceas limitatum). 



— Perithecia cortice immersa in acervulos stromaticos aggrega- 

 ta, in circulum simplicem (circinantia) v. compositum (monosticha) 

 disposita stratoque unico, neque polysticha; ostiolis centro conver- 

 gentibus, integris, erumpentibus et discum efformantibus. Asci octo- 

 spori, rarius 4-spori, sessiles aparaphysati. — Spermogonia C y - 

 tisporae species sistunt. 



Subgen. Euvalsa Nits. Pyr. Germ. p. 126. 



Stroma corticale, infra linea nigra nulla circumscriptum ; discus 

 saepius ater. (Nonnullae, forte multa^ species imperfecte descriptae hic 

 ad interim locatae sunt, quje vero dum melius cognitaj forent ad 

 subg. Leucostoinam v. Eutypellam forte transferendii; essent). 



A) Microsporm: sporidils miuutis (5-12 /ii. long.). 



1. Valsa ceratophora Tul. Sel. Fung. Carp. II, p. 191, tab. XXII, 

 fig. 1-11. Sphceria Ceratosperrnum Tode?, Fr. !, Sph. decorti- 

 cans Fr. p. p. Sph. enteroleuca Fr. ? — Stromate minuto, e basi 

 orbiculari, rarius ovali depresse convexo v. subconico, nunc peri- 

 dermio, plerumque rimose fisso, tecto, nunc contra parum protu- 

 berante peridermiique facile resolvendi laciniis cincto et ut corti- 

 cis interioris superficie ipsa colore fusco tincto; peritheciis in sin- 

 gulo stromate 5-20, monostichis, rainutis, densissime stipatis, sub- 

 globosis, collis brevibus ostiolisque plus minus longe exsertis, te- 

 nuibus, cylindricis, laeviusculis, basi plerumque fasciculatim conna- 

 tis, deinde divergentibus v. varie flexuosis pra^ditis; ascis anguste 

 clavatis, octosporis 32-40^4-5; sporidiis subdistichis, cylindricis, 

 curvulis V. subrectis, hyalinis, Q-^^V/o-^. — Spermogonia mul- 

 tilocularia Cytisporam referentia: spermatiis allantoideis 4 := 1, lon- 

 ge stipitatis. 



Hah. in ramis corticatis Quercus, Castanese, Cratsegi, 

 in tota Europa, Amer. bor., Ceylon. — In agro Veneto legi quo- 

 que in ramis Rhois glabrse (a. 40 ;; 6; sp. 8-11 s 1^4-2). — Co- 

 ryliAvellana) (a. 38-40 ^5; sp. 8-10 =; l%-2, hyalina. — Fra- 

 xini Orni (a. 30-35s5; sp. 8-10=; 1). — Mori albce (a. 35 ;; 

 5; sp. 10 s 1-lV.i) — Ulmi campestris (a. 38^4-5; sp. 10 s 1). 



— Carpini Betuli, Pruui domesticae, Aceris carape- 



