. The fungi which cause plant disease . Plant diseases; Fungi. 574 THE FUNGI WHICH CAUSE PLANT DISEASE elliptical, hyaline or variously colored. For the ascigerous stage see page 167. The conidial stages of many Penicilliums have been given searching investigation and comparative study by ;^ P. glaucum Lk. Hj-phffi effused, creeping, septate, interwoven, white, conidio- phores penicillate, branches single or in pairs, erect, forked; conidia globose to broadly elliptic, smooth, hyaline, with a tinge of green, 4 /x. It is the cause of rot of ripe oranges, lemons, apples, etc. P. italic
. The fungi which cause plant disease . Plant diseases; Fungi. 574 THE FUNGI WHICH CAUSE PLANT DISEASE elliptical, hyaline or variously colored. For the ascigerous stage see page 167. The conidial stages of many Penicilliums have been given searching investigation and comparative study by ;^ P. glaucum Lk. Hj-phffi effused, creeping, septate, interwoven, white, conidio- phores penicillate, branches single or in pairs, erect, forked; conidia globose to broadly elliptic, smooth, hyaline, with a tinge of green, 4 /x. It is the cause of rot of ripe oranges, lemons, apples, etc. P. italicum Weh. is described as a wound 22 T * parasite on oranges by Massee. It is very similar in appearance to P. glaucirai but a Fig. 385.—PenicUlium. little greener; conidia elliptic-oblong, 7-9 x 4 ai. After Brefeld. p_ jigitatum (Fr.) Sacc. Similar to the preceding species in habit but the conidia are white in mass, 4-6 ii. Often associated with, and similar in effects to P. glaucum. P. olivaceum Weh. is found on citrous fruits; P. luteum Zuk. on apple. An undetermined species is reported as the cause of a white dry rot of sweet potatoes.''" Various other species of the genus occur on fruits and vegetables causing their decay. Gliocladium Corda (p. 572) Hyphse effused, spreading; conidiophores and conidia as in Penicillium but the conidia surrounded by a mass of mucus. A genus of only about ten species. G agaricinum C. &. M. arrests growth and breaks the pilei of mushrooms. Botrytideae (p. 566) Conidiophores elongate, simple or branched but not inflated, and the branches not verticillate; conidia borne variously, globose or ovate to 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
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectfungi, bookyear1913
