772 



SPH2ERIACEI. 



On wycli elm twigs. Nov.— Feb. Batheaston. 



Plant 2 lines hif^h ; head oblonpf-ovate, granulated from the perithecia, 

 which are sunk in its substance, rather longer than the pallid, cylindrical 

 stem, which is slightly swollen at the base. Fruit unknown. Grows on a 

 sclerotioid substance.—^, tfc Br. 



Gen. 333. 



CLAVZCEFS, Tul. 



Stroma sclerotioid, sub-cylindrical ; 

 fructifying bead distinct, flesby, sub- 

 globose, coloured ; asci linear, tbickened 

 at tbe apex ; sporidia filiform. — Tul. 

 Ann. Sc. Nat. 1853, xx. p. 43. 



{Fig. 369.) 



2324. 



Ttd. 



Claviceps purpurea. 



" Purple Claviceps." 



Stroma. — Horn-shaped, cylindrical, 



externally sub-pruinose, purple-black, 



within white or purplish. — Sclerotium 



^^'  clavus, D.C. FLFr. Yi. p. 116. Spermce- 



dta cJavus,Fr. S.M. n. 268. Encj.Fl.Y. 226. Secale cornutum. 



Bald. Diss. 1771, etmultis aliis, " Ergot of Rye," &c. 



Spermogonia ? — Effused, red ; stroma expanded ; spermatia 

 curved. — Fusarium heterosporium, Nees. N. A. Cur. ix. 135. B. ^ 

 Br. Ann. N.H. no. 955. FcJd. Sym. Myc.p. 186. 



CoxiDiA. — Elliptical, moniliform, finally separating, with one 

 or more granules. — Oidium ahortifaciens, B. ^ Br. Ann. N.H. no. 

 545. Frgoietia abortifaciens, Queh. Linn. Trans, xviii. 471. 



AscoPHORE. — Flesby, pale purple ; head globose, tubercu- 

 lose ; stem short, flexuous ; sporidia filiform colourless, attenu- 

 ated at each end, variable in length. — Tul. Ann. Sc. Nat. 1853, 

 XX. t. 3. Cordyceps purpurea^ Fr. S.M. \\.p. 325. Berh. Outl. p. 

 382. Curr. Linn. Trans, xxii. t. 46, f. 25. Fl. Dan. t. 1781. Fckl. 

 exs. no. 1068. 



On grains of corn and grasses. 



Sporidia (•002--003 in.) •05--0"6m.ni. {Fig. 369.) 



2325. 



Claviceps xnicrocephala. 



Claviceps." 



Tul. " Small-headed 



Stroma. — Horn shaped, cylindrical, blackish, internally whitish. 

 ^Sclerotium clavus,D.C. var.phragjnitiSj " Reed Ergot," &c. 



