PHACIDIACEI. 761 



Hyst. p. 40. H. folikolum, y. maculare BerJc. Eng. Fl. Y.p. 296, 

 Berk, exs.no. 96. H. maculare, Grev.i. 129, f. 2. 



On dry oak leaves. [Low. Carolina ?] 



2295. Hysterium (Hypoderma) virgultorum. B.C. "Twig 



Hysterium." 



Subinnate, longitudinally placed, elongated,acute, even, shining, 

 black, at length gaping, internally grey ; asci clavate, obtuse, 

 longly pedicellate ; paraphyses filiform; sporidia hyaline, linear- 

 ellipsoid, obtuse at both ends. — Hyst. Ruhi, Fr. S.M. ii. p. 587. 

 Eng. Fl. v. p. 295. Schm, exs. no. 30. Moug. exs. no. 564. Grev. t. 

 24. Lib. exs. no. 177. Desm, exs. ii. no. 172-178. Tul. Ann. Sc. 

 Nat. 3, ser. xx. t, 15,/. 10-14. Fckl. exs.no. 757. 



On dead stems of bramble. [United States.] 



2296. Hysterium (Hypoderma) coxnxaune. Fr, '* Common 



Hysterium." 



Spermogonia. — Simple, subrotund, variable, rugulose, shining, 

 at length seceding ; spermatia simple, minute. — Leptostroma vul- 

 gare,Fr. S.M.ii.p. 599. B. ^\ Br. Ann. N.H.no. 205. Moug. 

 exs. no. 674. Fckl. exs.no. 197. Tul. Ann. Sc. Nat. iii. t. 20, p. 155. 



AscoPHORE. — Innate, oblong, obtuse, opaque, black ; lips sub- 

 rugose, fragile ; disc dingy ; asci more or less elongated from the 

 base,ovato-clavate ; sporidia hyaline, linear, obtuse ; paraphyses , 

 filiform, fiexuose, short.— Fr. S.M. ii. p. 589. Letell. t. 650, f o3- 

 Babk. exs. ii. no. 076. B. 4'. Br. Ann. N.H.no. bS8. Fckl. er 

 755. 



On dead stems of herbaceous plants. [United St; "001 m.m. 



2297. Hysterium (Hypoderma) hederae. Be Not 



Hysterium." . ScJirad. 



Am phigenous, scattered, innato-superficial, elliptico-ovate, 1 

 shining ; lips acute at the edge, at first tumid, conniveni-,iack 

 length depressed ; disc brown-black ; asci clavate ; para^jh} ^q^ 

 thickened at the apex ; sporidia oblong-ovoid, straight,hyaline. -ryf-. 

 Dubg Hgst. p. 42. H. Ileclerce, Corda v. t. 9, /. 5. Babh. exs. no. 

 I9b-^. Desm. exs.ii.no. ISO. H.foliicolum, j^. Hederce Fr. Eng. 

 Fl. V. p. 294. Moug. exs. no. 1075. Lib. exs. no. 12. Grev. t. 

 129,/. 1. Fckl. exs. no. Ih6. 



On ivy leaves. 

 Often seated on a pale spot. 



2k: 



