. The fungi which cause plant disease . Plant diseases; Fungi. THE FUNGI WHICH CAUSE PLANT DISEASE 651 infection. The ascigerous stage was said by Smith ^ to be a Neocosmospora and the many wilts caused by Fusarium have by various authors M'ho follow Smith been reported as Neocosmospora though without real evidence that they are such. See page 205. Recent studies of Hig- gins'*' and Butler^ ra- dicate that the Fusarium of the Neocosmospora is a saprophyte and that the Fusariums parasitic in the wilt diseases are as yet unknown in ascigerous form. The Fusarium parasitic on cotton is believed to
. The fungi which cause plant disease . Plant diseases; Fungi. THE FUNGI WHICH CAUSE PLANT DISEASE 651 infection. The ascigerous stage was said by Smith ^ to be a Neocosmospora and the many wilts caused by Fusarium have by various authors M'ho follow Smith been reported as Neocosmospora though without real evidence that they are such. See page 205. Recent studies of Hig- gins'*' and Butler^ ra- dicate that the Fusarium of the Neocosmospora is a saprophyte and that the Fusariums parasitic in the wilt diseases are as yet unknown in ascigerous form. The Fusarium parasitic on cotton is believed to Fiq. 442.—F. vasinfectum, showing thromboBiB be identical with that on °^'''^- ^fter AtkinBon. okra but distinct biologically if not morphologically from that of watermelon. F. vasinfectum var. tracheiphila E. F. Sm.^' This form on cowpea, which appears to be morphologically identical with F. vasinfectum is not capable of infecting cot- ton. F. niveum E. F. Sm.*"*' '*^'''* is the cause of the watermelon wilt. Morphologically it is like F. vasinfectum. A fungus regarded by Reed ^^' '*' as identical with this was also described as causing wilt of ginseng. F. vasinfectum var. pisi v. Hall has been described as a variety affecting the pea.'*** ^ F. udum Butler on pigeon pea in India is closely related to this last fungus. F. aurantiacum (Lk.) Sacc. is recorded for cucurbs occurring on stems, leaves and fruits. ,.^ jirysporum Schl.^'- ^ Sporodochia conviex, subverrucose, rose, erumpent, confluent;. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Stevens, Frank Lincoln, 1871-1934. New York : Macmillan
Size: 1489px × 1677px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectfungi, bookyear1913
