THE SPOBB AND ITS DISSEMINATION. 



133 



subquadrate sporidia. Other species contain linear sporidia, 

 ■which are often the length of the ascus, and may either be simple 

 or septate. In SpJusria ulnaspora the sporidia are abruptly bent 

 at the second joint. Shorter fusiform sporidia are by no means 

 ■uncommon, varying in the number of septa, and in constriction 

 at the joints in different species. Elliptic or ovate sporidia are 

 common, as are those of the peculiar form which may be termed 

 sausage-shaped. These are either hyaline or coloured of some 

 shade of brown. Coloured sporidia of this kind are common in 



Fia. 68. — Ascus and sporidia Fig. 69. — Sporidium of 

 of Hypocrea. Splueria ulnaspora. 



Fio. 70.— SporidH of Pitija 

 profusa (Currty). 



Xylaria and Hypoxylon, as well as in certain species of the section 

 Superficiales. Coloured sporidia are often large and beautiful : 

 they are mostly of an elongated, elliptical form, or fusiform. As 

 noteworthy may be mentioned the sporidia of Melanconis lanci- 



7 



