SPH^RIACEI. 795 



Grev. 1. 114. Berk. Outl.p, 386, t. 24,/. 4. H, granulosum, Bull. 

 t. 487. f. 2. Sph. granulosa, Sow. t. 355. Pers. Ann. Bot. t. 2, f. 1. 

 Sph. multiformis, Fr. S.M. ii. p. 334. Fr. Obs. i. ^ If. 2, 3. iJetZw. 

 0^*5. t. 8,/. A. Pgr5. /c. /??c^. t 3, /: 1-3. ^/i^. Fl. v. y;. 237. C'irr. 

 Linn. Titans, xxv. ^. 45,/. 28. 



On birch. Common. [United States.] 



Notbincf can be more different than the spon^-looking rubiginous young 

 plant, and the same when mature. Besides this change it often assumes 

 many forms, sometimes elliptic, or strongly raised and crestiform, and, on 

 the other hand sometimes quite flat and depressed. In the latter the peri- 

 thecia are frequently less prominent and smaller; in every case it is firmly 

 attached to the wood, and in branches covered with the bark erumpent. — 

 M.J.B. Sporidia (•0004 in.) "Ol m.m. 



2387. Hypoxylon marginatum. Berti. " Margined 



Hypoxylon." 



Hemispherical confluent, at length black, of the same colour 

 within, each ostiolum seated in a little margined disc ; sporidia 

 elliptical or sub-reniform, pale clear brown, sometimes with one 

 or two nuclei. — Berk. Outl. p. 387. Sph. marginata, Schwein. 

 Jonrn. Ac.t.2,f.^. B. ^' Br. Ann. N.H. no. 595. Curr. Linn. 

 Trans, xxvi. ^. 46, /. 60. 



On decaying wood. Chatsworth. [United States.] 



The sporidia are sometimes separated by a globose cell like the connecting 

 cells in Anahaina. 



Sporidia (-0002 in.) "005 m.m. 



2388. Hypoxylon cohaerens. Fr. " Confluent Hypoxylon." 



Confluent, convexo-plane, at first even, dirty-brown, then 

 blackish, black within; perithecia at length rather prominent, 

 papillate ; sporidia rather dark brown, irregularly elliptical, fre- 

 quently rather curved, often nucleate. — Berk. Outl.p. 387. Fckl. 

 exs. no. 1053. Sjjh.cohcerenSjFr. S.M.ii.p. 333. Nees.f. 310,^. 

 Fries, exs. no. 45. Sckm. exs. no. 126. Eng. Fl. v. p. 237. Jloug. 

 exs. no. 764. Curr. Linn. Trans, xxii. t. 45,/ 41. 



On dead branches. [Mid. & Up. Carolina.] 



Sporidia (•0003--0004 in.) -OOJo-'Ol m.m. 



2389. Hypoxylon axgillaceum. Fr. " Clay-coloured 



Hypoxylon." 



Subglobose, clay-coloured, brown-black within ; perithecia 

 slightly prominent, papillate ; sporidia opacjue, black-brown, 

 irregularly elliptical, sometimes nucleate. — Berk. Outl. p. 387. 



