TOETJLACEI. 



479 



Gen. 151. 



SFEIRA, Corda. 



Flocci concentric, at first connate, 

 forming plates, at length breaking up. 

 Spores simj^le. Stroma none. — Corda. 

 Icon. i.p. 9. 



{Fij. 187.) 



Fig. 187. 



1427. Speixa toruloides. Corda. " Tonila-like Speira." 



Tufts irregular, elongated, brown; threads connate in laminae; 

 spores quadrangular, yellowish, pellucid. — Corda. Icon. i.f. 140. 

 B. ^ Br. Ann. N.H. no. 1041. Pay.f. 295. Corda. Anl. t. B.f. 5. 7. 



On dead herbaceous plants. Batheaston. (^^^ I87.) 



Fig. 188. 



BACTRIDIUIVI, Kunze. 



Spores radiatirg, coloured or hyaline, 

 oblong, multiseptate. — BerJc. Outl.p. 326. 



(Fig. ] %S.) 



1428. Bactridium flavum. Kze. 



"Yellow Bactridium." 



Tufts irregular, usually subglobose, com- 

 pact, yellow ; spores oblong-ovate, obtuse ; 

 hyphasma somewhat branched, sparingly 



septate. — Kze. M.H. i. 1. 1,/. 2. Bon. t. 2,/. 47. Berk. exs. no. 327. 



Bahh.F.E. no. 2,12. 



On elm stumps. [United States.] 



{Fig. 188.) 



1429. Bactridium helvellse. B.^^Br. " Parasitic Bactridium." 



Tufts confluent, very thin, microscopical, effused ; flocci some- 

 what erect, branched sparingly; spores clavate, or clavately 

 pear-shaped, 2 — at length 6-7 septate, colourless. — B. ^- Br. Ann. 

 N.H. no. 816, t. 9,/. 3. Didymaria helvellcB. Corda. vi./. 24. 



On the hymenium of Pezizce. Dec. Batheaston. 



Spores at length 5-7 septate, '0025 in. long. Corda's figure represents the 

 early stage of growth ; at length it acquires seyeral septa, 



