PLATE XIV 
Gibberella Saubinetii (Mont.) Sacc. This fungus was isolated from a wheat kernel in 
Dahlem, near Berlin, Germany. The first perithecia appeared in pure cultures 
after several transfers to fresh media. Thus far no differences have been observed 
between the wheat and the sweet-potato strains. 
Figs. A-C .—Gibberella Saubinetii: Perithecia grown in pure culture; A, on stem of 
Viciafaba t with two ostiola surrounded by a collar of large peridial cells; B, on wheat 
grains showing the ascus ball after one-half of the peridium had been lifted by a 
longitudinal section; 0 , on Irish potato stem, without a distinct collar. X 200. 
Fig. D .—Gibberella Saubinetii: Two asci with a paraphysis. X500. 
Fig. E .—Gibberella Saubinetii: Ascospores, 1, with slightly swollen cells, overripe; 
2, normal shape; 3, dried condition. Xi.ooo. 
Fig. F-G .—Gibberella Saubinetii: Normal conidia grown on Irish potato stem. F, 
12 days old; G, 6 days old, culture watered more, therefore the conidia are broader 
than in figure F. X 1,000. 
Fig. H .—Gibberella Saubinetii: Abnormally multiseptate conidium about to germi¬ 
nate. These conidia are frequently to be found with swollen cells in young, and some¬ 
times old cultures on the parenchyma of potato tubers. (Compare fig. K.) X 1,000. 
Fig. J .—Gibberella Saubinettii: Plectenchymatic parts of a stroma, formed by closely 
interwoven chains of swollen cells which have a thick membrane and brown to red 
contents with many vacuoles. Not to be confused with true chlamydospores, although 
very resistant to unfavorable conditions. 
Fig. K .—Gibberella Saubinetii: A number of conidia formed in young cultures on 
the moist surface of potato cylinders. Septation (1, 3) and shape (2) rarely normal; 
4, mother conidium broken into two halves (a, b), both of which have developed some 
small conidiophores from the cells tom asunder. X 500. 
