354 FUNGI. [Fusarium. 



Tribe 1. Tubercularini. Sporidia glued together into cm 

 enimpent disc. 



139. TuBERCULARiA. Todc. Tiiberculai'ia. 



Sporidia simple, subglobose, closely packed upon an ernm- 

 pent distinct more or less stem- like disc. — Name from the 

 tuberculate form of the species. 



1. T. vulgaris, Tode, (^common Tuhercularia) ; erumpent, 

 stratum of sporidia red, margin naked. Tode, Fung. Meek. 1. 

 p. 18. /. 30. Moug. ^ Nest. ! n. 84. Grev. FL Ed. p. 463. 



Fr. Syst. Myc. v. 3. p. 4G4 Clavaria coccinea, Sow. t. 294. 



Purt. V. 2 ^ 3. n. 1068. — SpJicBria tremelloides, With. v. 4. p. 359. 

 — b. minor. — T. conjluens, 3Ioug. ^ Nest.! n. 576. Baxt.! Ox. 

 n. 100. — T, discoidea, Fr.! Scler. Suec. n. 256. 



On decayed sticks and branches. Extremely common. — Varying 

 greatly in the length of the receptacle, which is sometimes quite obsolete. 

 I have seen it on recently felled decorticated trees exactly in the state 

 mentioned by Fries, with the habit of a Dacrymyces and very highly 

 coloured, the total absence of the stem arising probably from the hard- 

 ness of the matrix, h. minor differs only in size and is common on 

 Robinia Pseudacacia. T. discoidea and T. conjiuens are mere forms. 



2. T. granuldta, Pers. (granulated Tuhercularia) ; stratum 

 of sporidia rugose dirty-red at length brown, margin naked. 

 Pers. Syn. p. 1 13. Scler. Suec. ! n. 257. Grev. Sc. Crypt. Fl. 

 t. 187. Fr. Syst. Myc. v. 3. p. 465. 



On dead branches of various trees. Not common. Edinburgh, 

 Dr. Greville, Berwick, Dr. Johnston. — Sporidia subfusiform. Fries 

 now considers his T. liceoides, which has been found in Durham by 

 Dr. Greville, a form of the present species. 



3. T. nigricans, Lk. (blackened Ticbercidaria) ; stratum of 

 sporidia even red at length black, margin naked. Lk. Sp. '2. 

 p. 102. Fr. Syst. Myc. v. 3. p, 466. — Trem. nigricans, Bull, 

 t. 455. f. 1. 



On trunks of trees. King's Cliffe, Norths. Rev. M.J. Berkeley.— 

 This is probably only a variety of T. vulgaris. 



4. T. dlbida, Berk, (dirty-ivhite Tuhercularia); receptacle 

 hard at length black simple or confluent within of the same 

 colour, stratum of sporidia dirty- white. 



On oak branches ; left upon the wood when the bark falls off. Oct. 

 Cotterstock, Norths. Rev. M. J. Berkeley.— \\hen dry it has a 

 peculiar semitransparent horny appearance. 



140. Fusarium. Lk. Fusarium. 



Sporidia simple, at length fusiform, acuminate, somewhat 



there is a distinct sac of a cellular structure, the nature of which is very im- 

 pprfectly understood. 



