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Wilhelm, G. S. The lichen flora of Chicago and vicinity: one hundred years of lichenology. Pp. 3-36.
Abstract:One hundred years ago, William Wirt Calkins published a lichen flora of "Chicago and vicinity," including an annotated account of 125 lichen taxa, which translate nomenclaturally and taxonomically into 106 taxa recognized today. Over the last decade, 147 taxa of lichenized fungi have been seen alive in the "vicinity" of Chicago, of which 52 were recorded by Calkins in 1896; of Calkin's remaining 54 species, 34 have yet to be confirmed with a voucher specimen. Altogether, including 72 of the 106 taxa reported by Calkins, 188 lichenized fungi have been vouchered with a specimen, historic or contemporary, from "Chicago and vicinity", as delinated by Calkins. This paper accounts for 222 lichens, based upon literature reports and specimens, and compares Calkin's perception of the flora of 1896 with what we have seen in the present era. Given that there are significant difficulties in comparing names from Calkin's era to the present, the flora known today has a 41% similarity to that of a century ago. Also provided is a general description of habitat changes since settlement and a discussion of how these changes might relate to lichen inhabitancy. In addition, there are keys to the identification of species, and a bibliography of literature that cites specimens from Chicago and vicinity.
Hyerczyk, R. D. The lichen flora of the Cook County Forest Preserves Part I: Palos Division. . Pp. 37-46.
Abstract:This is the first is a projected series of papers that will document the lichenized fungi of the Cook County forest preserve system. In this initial paper, the scope of the project is delinated, and the first results of the study are presented. For the Forest Preserve District of Cook County's Palos Division, 65 species of lichens are reported, of which 33 were vouchered. An annotated species list is provided, as well as checklists for the individual preserves within this division.
Hyerczyk, R. D. The lichen flora of the Cook County Forest Preserves Part II: Sag Valley Division. Pp. 47-54.
Abstract:Seventy-seven species of lichens are reported for the Forest Preserve District of Cook County's Sag Valley Division, of which 54 were vouchered. An annotated species list is provided, as well as checklists for the individual preserves within this division.
Hyerczyk, R. D. The lichen flora of the Cook County Forest Preserves Part III: North Branch Division. Pp. 55-58.
Abstract:Twenty-seven species of lichens are reported for the Forest Preserve District of Cook County's North Branch Division, of which three were vouchered. An annotated species list is provided, as well as checklists for the individual preserves within this division.
Hyerczyk, R. D. The lichen flora of the Cook County Forest Preserves Part IV: Skokie Division. Pp. 59-64.
Abstract:Fifty-five species of lichens are reported for the Forest Preserve District of Cook County's Skokie Division, of which 53 were vouchered. An annotated species list is provided, as well as checklists for the individual preserves within this division.
Masters, L. A. and F. Swink. Bird takes a "lichen" to a nest. Page 65.
Steffen, J. F. Deschampsia flexuosa (L.) Trin.: addition to the flora of Illinois. Page 66.
Ebinger, J. E. and W. McClain. Notes on some woody plant species naturalized in Illinois. Pp. 67-70.
Abstract:Individuals of Carragana arborescens (Siberian pea shrub), Cornus mas (Cornelian cherry dogwood), Rhodotypos scandens (Jetbead), Sorbaria sorbifolia (False spirea), and Phellodendron amurense (Amur cork tree) have been found naturalized in Illinois. Presently Siberian pea shrub and jetbead are a problem in at least one natural area, and may become major plant problems in the future.
Turner, J. and G. Yatskievych. A family index to the illustrated flora of Illinois. Pp. 71-72.
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