198 



ASCOMYCETES. 



Its injurious effects can be minimized by removal of attacked 

 branches. 



Trichosphaeria sacchari Massee, is regarded as a dangerous wound 

 parasite of cane-sugar in the Antilles ; it seems to obtain entrance chiefly 

 by the canals left by a caterpillar.^ 



Herpotrichia. 



The smooth dark perithecia bear long brown hairs, which 

 do not stand erect and stiff, but are more or less prostrate. 



Flo. 89. — Herpotrichia nigra on a branch of PiniLS montana.. The ends of the 

 twigs, with most of the younger needles, are still green ; the others are dead and 

 felted together by hyphae into a black mass. (v. Tubeuf phot.) 



The asci contain eight spores, at first generally two-celled, later 

 becoming four-celled. 



'Massee G., Annals of Botany, 1893, p. 51.5. 

 Barber, "Experimental Cultivation in St. Kitto,'' Leeward Islandu Gazette, 

 1894. 



