394 FUNGUS-FLORA. 



threads very short, simple or nearly so ; conidia elliptic- 

 oblong, 1-septate, often in chains, dark brown and almost 

 opaque, 8-10 X 5-6 p.. 



Cladosporium lignicolum, Corda, Icon. Fung., p. 14, t. iii. 

 f; 206; Sacc., SylL, iv. n. 1692. 



On rotten wood. 



Cladosporium brachonnium. B. & Br. 



Forming thin, effused, grey patches ; hyphae erect, wavy, 

 nodulose above ; conidia elliptic-oblong, in one or more short 

 terminal chains. 



Cladosporium brachormium, B. & Br., Ann. Nat. Hist., n. 515 ; 

 Sacc., Syll., iv. n. 1736. 



On leaves of Fumaria officinalis. 



Cladosporium juglandinum. Cke. 



Forming small, scattered, sooty patches on the under 

 surface of the leaves ; hyphae septate, nodulose, slightly 

 wavy, blackish-brown at the base, paler above; conidia 

 apical, fnsoid, 1-septate, pellucid, 35 X 9 p.. 



Cladosporium juglandinum, Cke., Grev., xvi. p. 80 ; Sacc., 

 Syll., SuppL, x. n. 7501. 



On walnut leaves (Juglans regia). 



Cladosporium herbarum. Link. (fig. 2, p. 397.) 

 Tufts dense, aggregated, confluent, forming an olive- 

 yellow, then blackish-olive stratum ; hyphae erect or ascend- 

 ing, brown or olive, septate, sparingly branched, 5-7 p. thick ; 

 conidia springing from near the tips of the hyphae, not at 

 all or very shortly concatenate, pale brown or olive, form 

 and size exceedingly variable, oblong, ovoid, oblong-elliptical, 

 cylindrical, simple or 1-3-septate, constricted at the septa, 

 smooth. 



Cladosporium herlarum, Link, Obs. Myc., ii. p. 37 ; Sacc., 

 Syll., iv. n. 1665. 



On every portion of decaying herbaceous plants ; on wood, 

 paper, fungi, &c. 



Cladosporium nodulosum. Corda. 

 Tufts narrowly oblong, olive-brown then blackish ; hyphae 

 clustered, long, wavy, pale brown, apex generally incurved, 

 simple, with very short spurious, nodulose branchlets ; 



