. The Canadian field-naturalist. 284 The Canadian Field-Naturalist Vol. 95. M. 9iO'-; as. Figure 1. North American distribution of Que re us ellipsoidalis (after Little 1971). Note disjunct localities in Michigan and Ohio. The historical geography of Dumfries township was the subject of a detailed study by Wood (1958. 1961). The township was first surveyed in 1816-1817 and Wood was able to construct a map of the vegetation of that period based on the surveyor's notes. Extensive areas in the southern and eastern halves of the town- ship were described as "oak ; "plains,&qu
. The Canadian field-naturalist. 284 The Canadian Field-Naturalist Vol. 95. M. 9iO'-; as. Figure 1. North American distribution of Que re us ellipsoidalis (after Little 1971). Note disjunct localities in Michigan and Ohio. The historical geography of Dumfries township was the subject of a detailed study by Wood (1958. 1961). The township was first surveyed in 1816-1817 and Wood was able to construct a map of the vegetation of that period based on the surveyor's notes. Extensive areas in the southern and eastern halves of the town- ship were described as "oak ; "plains," or "; An area (about 5X4 km) west and southwest of Gait was covered by "thickets" consist- ing of scrubby individuals of pine, oak, poplar, and hazel. Also mentioned were "briars," "white thorn," "plum bushes," and "; Such "thickets" suggest an area under recolonization following a relatively recent major disturbance. At the northern end of the "thickets" an area of about 4 X 1 km was described as recently burnt, thus suggesting that the "thickets" were the result of an earlier more extensive fire. The approximate area covered by these vegetation types is shown in Figure 2b. Another brief description of the vegetation south of Gait was provided by Fergusson (1833). He described the area (pp. 130-131) as ". . an extensive range of open, grove-like woodland, princi- pally oak, and the trees so dispersed as to not interfere materially with the plough. It had much of the appearance of some of the wildest part of English park-scenery ... It was a lovely landscape, with a greater range open to the eye than usually occurs in the interior of ; These early 19th century descriptions of Dumfries township suggest that much of it consisted of extensive areas of dry grassland with numerous open-grown oak trees which did not form a continuous canopy and which was subje
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