TETRAPLOA STEMPHYLIUM. 429 



Speira toruloides. Corda. (fig. 27, p. 397.) 

 Clusters of conidia irregular^ brown; sterile hyphae 

 obsolete or none ; conidia more or less ovoid, formed of 6-7 

 longitudinal rows of articulated filaments, at first in contact 

 with each other, but eventually separating, 50-60 /u. long, 

 single joints 8-9 p diameter. 



Speira toruloides, Corda, Icon. Fung., i. fig. 140 ; Sacc., 

 Syll., iv., n. 2454. 



On rotten leaves, stems, wood, &c. 



TETKAPLOA. B. & Br. (fig. 15, p. 397.) 



Conidia ovoid-oblong, muriformly septate, apex furnished 

 with four slender spines, dingy brown ; mycelium obsolete. 



Tetraploa, Berk. & Broome, Ann. Nat. Hist., n. 457 ; Sacc., 

 Syll., iv. p. 516. 



Distinguished from allies by the delicate spines at the 

 apex of the conidium. 



Tetraploa aristata. B. & Br. (fig. 15, p. 397.) 

 Tufts effused, blackish-olive; conidia oblong, muriformly 



septate, smoky ochraceous, 30 x 20-22 /*, apex crowned 



with four slender spicules 60-90 X 3-4 /*, septate and 



divergent. 



Tetraploa aristata, B. & Br., Ann. Nat. Hist., n. 457, tab. xi. 



fig. 6 ; Sacc., Syll., iv. n. 2463. 

 On herbaceous stems, grass, &c. 



Subsect. 2. Macronemeae. Saec. 

 STEMPHYLIUM. Wallr. (fig. 17, p. 397.) 



Hyphae decumbent, intricately branched, hyaline or 

 smoky ; conidia elliptical or subglobose, 2- many-septate and 

 muritbrm, smoky. 



Stemphylium, Wallr., PI. Cr.,p.300; Sacc., Syll., iv. p. 519. 



Stemphylium macrosporoideum. B. & Br. 

 Effused, thin, greyish-black; hyphae thin, effused, un- 

 equally branched, branches sometimes anastomosing in a 

 rectangular manner; conidia subglobose or resembling a 



