. Bulletin. Natural history; Natural history. 434 Illinois Natural History Survey Bulletin Vol. 26, Art. 5. Fig. 28.—Mentzelia oligosperma growing in thin loess just above a limestone cliff, south of New Canton, Pike County. spaces just above or just below slopes. Presumably it cannot compete with vig- orous species. *Torilis japonica (Houtt.) DC. Hedj;e-parsley was found in hill prairie only at Chautauqua. This species seem- ingly is becoming widespread in Illinois. Zizia aurea (L.) Koch. Golden alex- anders, a plant of both prairie and forest, grew in the rock prairie at Cave Creek. CORNACEA
. Bulletin. Natural history; Natural history. 434 Illinois Natural History Survey Bulletin Vol. 26, Art. 5. Fig. 28.—Mentzelia oligosperma growing in thin loess just above a limestone cliff, south of New Canton, Pike County. spaces just above or just below slopes. Presumably it cannot compete with vig- orous species. *Torilis japonica (Houtt.) DC. Hedj;e-parsley was found in hill prairie only at Chautauqua. This species seem- ingly is becoming widespread in Illinois. Zizia aurea (L.) Koch. Golden alex- anders, a plant of both prairie and forest, grew in the rock prairie at Cave Creek. CORNACEAE Cornus drummondi Meyer. This dog- wood, common in thickets and in wood- land borders, was observed growing singly or in small thickets in loess prairie at 19 sites. It was common also in the adjoin- ing coves. Cornus fiorida L. Scattered individuals of flowering dogAvood, a very attractive ' plant in springtime, were seen in Swarnes and Cave Creek prairies. J Ericaceae ! Vaccinium arboreum Marsh. Farkle- berry, or tree huckleberry, a plant of rocky woods, was collected in rock prairie at Government Rock. Vaccinium vacillans Torr. Hill or low blueberry, a species of rocky woods, bluffs,. 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 Illinois. Natural History Survey Division. Urbana, State of Illinois, Dept. of Registration and Education, Natural History Survey Division
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