PLATE XVI 
Fusarium spp. on sweet potato with and without known perfect stage, 
grown on sterilized vegetables. 
Fig. A-E.— Fusarium batatatis , n. sp.: A, Microconidia. Xiiooo. B, i, Inter¬ 
calated and terminal chlamydospores. 2, In young stage. 3, Branch from sclerotial 
plectenchymata, therefore no true chlamydospores. 4, Chlamydospores formed from 
the content of conidial cells (conidio-chlamydospores). 5, Mature chlamydospores. 
X500. C, Two conidia anastomosing, one of them producing microconidia. X500. 
D, Normal conidia from sporodochia. X 1,000. E, Conidiophore from a sporodo- 
chium. X 500. 
Fig. F-P.—Characteristic conidia of different species of Fusarium. Xijooo. 
Fig. F. — Fusarium hyperoxysporum , n. sp. 
Fig. G. — Ftisarium acuminatum Ell. and Ev. 
Fig. H.— Hypomyces ipomoeae (Hals.) Wollenw. 
Fig. J.— Fusarium culmorum (W. G. Sm.) Sacc. 
Fig. K.— Fusarium radicicola t n. sp. 
Fig. L.— Fusarium incarnatum (Rob.) Sacc. 
Fig. M.— Fusarium caudatum , n. sp. 
Fig. N.— Fusarium orthoceras var. trisepta turn, n. var. 
Fig. O .—Gibbtrella Saubinetii (Mont.) Sacc. 
Fig. P.— Fusarium caudatum var. volutum , n. var. 
