280 THE FUNGI WHICH CAUSE PLANT DISEASE 



Spores more than 2-celled 

 Spores hyaline 



Spores elongate, multicellular 6. Calospora, p. 280. 



Spores fusiform, multicellular 7. HolstieUa. 



Spores brown 

 Spores elongate, multicellular; asci 



8 or 4-spored 8. Pseudovalsa, p. 28L 



Spores long-cylindric, very large, asci 



1-spored 9. Titania. 



Calospora Saccardo 



One species, C. vanillae Mas., reported as causing a Vanilla 

 trouble,'*' is perhaps identical with Gloeosporium vanillse C. & M. 



Cryptosporella Tulasne (p. 279) 



Stroma valsoid, pustuliform, covered; perithecia embedded, 

 subcircinate, with converging necks united in an enmipent disk; 



asci cylindric to globoid; spores 

 elongate, cylindric, hyaline, 1-celled. 

 C. anomala (Pk.) Sacc^^"- ^* 

 Pustules prominent, 2-5 mm., 

 erumpent; penetrating the wood 

 and generally having a thin black 

 crust beneath them, disk convex or 

 slightly depressed, cinereous to black; 

 perithecia crowded, deeply em- 

 bedded in the stroma, often elon- 

 gate, ostioles scattered, black; asci 

 Fio"^9"-c. anomala. 31. stroma f^ort, broad, fugaceous; spores hya- 



and perithecia; 32, an ascus; 33, Ime, elliptic. Simple, 7-8 ft. 



spores. After Humphrey. Common on hazel and filbert in 



America, causing the destruction of the tops while the roots re- 

 main alive. 



C. viticola Sh.»='« 



Pycnidia (=Fusicoccum) with labyrlnthiform chambers, ostiolate 

 but frequently rupturing. Spores hyaline, continuous, of two forms 

 in the same cavity. 1. Subfusoid, 7.5 x 2-5 m- 2. Long, slender, 

 curved, 18-30 x 1-1.5 /i. Perithecia buried in irregular pulvinate 



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