282 FUNGI. [Cijtispora. 



2. C. chrysospei-ma, Pers. (golden-seeded Cytispora) ; cells set 

 in a conceptaculum, disc erumpeiit at length black, tendrils 

 yellow. Fr. Sijst. Myc. v. 2. p. 542. Scler. Stiec. ! n. 134. 

 Moug. ^ Nest.! n. 881. — Ncemaspora chrysosperma, Pers. Syn, 

 p. 108. Ohs. l,t.5.f. 8. — S. pj'ofusa, var. populina, Purt. v. 3, 

 p, 278. 



On the bark of Poplars, Glasgow, Klotzsch, in Hook, Herb. 

 Botanic Garden, Oxford, on Popidus dUatata, Baxter. — Mr. Purton 

 appears to me quite right in considering Hypoxylon cirrhatum, Bull. 

 and S. cirrhata, Sow,, as synonymous with C. leucospermay for there 

 is no sufficient reason, as fa/ as the figures are concerned, to believe that 

 they have a conceptaculum. 



3. C. carphosperma, Fr. {straw-coloured Cytispora) ; concep- 

 taculum none, cells black circinating, disc dingy, tendrils straw- 

 coloured. Fr. ! Scler. Saec. n. 135. Syst. Myc. v. 2. p. 543. 

 — Sphmria ambiens^ Johnst. Fl. Berio. 2. p. 122. 



On Hawthorn and other JRosacece. Berwick, Br. Johnston. 



4. C. leucosperma, Pers. {ivJute-seeded Cytispora) ; concepta- 

 culum none, cells black circinating, disc plane dirty-white, ten- 

 drils white. Fr. Syst. Myc. v. 2. p. 513. Scler. Suec, ! n. 156. — 

 N(BMaspora leucosperma, Pers. Syn. p. 108. — N. Eosarum^ 

 Grev. f Sc. Crypt. FL t. 20. FL Ed. 2. jj. 365.— aS. cirrhata. 

 Sow. t. 138. Hoffm. Veg. Crypt. 1. t. 5.f. l.—S. dubia, Sow. 



t. 138 Hypoxylon cirrhatum, BulL t. 487./. 4.-— b. brunneola, 



Scler. Suec. ! n. 245. - 



On branches of various trees. Very common. — b. On Willows. 

 Woodnewton, Norths., Rev. M. J. Berkeley. 



5. C. fugax, Bull, (fugacious Cytispora) ; conceptaculum 

 none, cells black circinating, disc plain dirty-brown, tendrils 

 delicate pale. Fr. Syst. Myc. v. 2. p. 544. Sder. Suec. ! n.2\\. 

 Variolaria fugax, BulL t. 432. f. 5. — S. pustidata, Hoffm, 



Veg. Crypt, l.t.b.f.b. Pers. Syn. p. 41. 



On Willow branches. Extremely common. — This is so exactly 

 analogous to Sphceria salicina, that the two plants may most easily 

 be confounded on a superficial examination ; the same similarity 

 exists between C. ca)phosper?iia and S. aynbiens. Indeed with equal 

 reason they might be considered different states of the same plant as 

 Sphmria leucostoma and C. leucostoma. The latter is most abundant 

 and has, I believe, the same sporidia as true Cytisporce ; but Fries 

 assures us that he has seen the one pass into the other. This point is of 

 great interest and deserves a careful investigation.— The genus Septoria 

 is placed by Fries, in his Elenchus, next to Cytispora, on the ground 

 of its possessing true perithecia. Such indeed are figured by Dr. 

 Greville ; and Fries confirms his observations, evidently drawing up his 

 description after the analysis in the Scottish Cryptogamic Flora. 

 There is, however, reason to believe that both are in error. It has long 

 been matter of surprise to me that I could never detect in Septoria Ulmi 

 any thing at all approaching to the figure above cited, and, in consequence 

 suspected some accidental error. This suspicion is completely con- 

 firmed by the account given by Desmaziere in his PL Crypt, n. ;534, 



