462 FUNGUS-FLORA. 



Fam. IV. TUBEBCULARIEAE. Ehr. 



Series I. Tubercularieae mucedineae. Sacc. 



Sect. 1. Amerosporae. Sacc. 



TUBERCULAKIA. Tode. (fig. 24, p. 442.) 



Sporodochium wart-like or tubercular, sessile or subsessile, 

 generally some shade of red, waxy, glabrous, very rarely 

 ciliated at the margin ; conidia produced at the tips of 

 lateral branchlets or at the apex of the conidiophores, con- 

 tinuous, elliptical or oblong, typically solitary. 



Tubercularia, Tode, Meckl. Fung., i. p. 18 ; Sacc., Syll., iv. 

 p. 638. 



Many of the so-called species are known to be the conidial 

 stage of species of Nectria. 



The sporodochium consists of densely compacted, simple 

 or branched, straight or curved conidiophores which spring 

 from a pseudo-parenchymatous base, and become expanded 

 at the apex to form a more or less capitate structure. The 

 minute conidia form a dense waxy layer covering the 

 surface of the sporodochium. 



I. On trunks and branches of trees or woody shrubs. 



Tubercularia vulgaris. Tode. 



Sporodochia gregarious, rather large, erumpent, margin 

 naked, red, shining, glabrous, globoso-depressed, sometimes 

 flattened and also confluent, more or less shortly stipitate ; 

 conidiophores fasciculate, straight, repeatedly forked, with 

 very short lateral brancblets ; conidia elliptic-oblong, some- 

 times slightly curved, 6-8 x 1-5-2 p., terminal on the 

 branchlets. 



Tubercularia vulgaris, Tode, Meckl. Fung., i. p. 18, tab. iv. 

 fig. 30 ; Sacc., Syll., iv. n. 3002. 



On branches of various trees. 



Tubercularia granulata. Pers. 

 Dingy red, becoming rarely black, granuliforrn, erumpent ; 



