. The Canadian field-naturalist. 388 The Canadian Field-Naturalist Vol. 110. Figure 1. Endemic elements of British Columbia and immmediately adjacent regions. 1 - Queen Charlotte Islands- Northern Vancouver Island-Southeastern Alaska, 2 - Southern Vancouver Island-Lower Fraser Valley, 3 - Coast- Cascade Mountains-Selkirk Mountains, 4 - Rocky Mountains (Southern Canada-Northern ). Islands (Calder and Taylor 1968). These plants often have ranges which also extend to adjacent islands or the mainland (Figure 1). For instance, seven of the 10 plants in this region range south to northern Vancou
. The Canadian field-naturalist. 388 The Canadian Field-Naturalist Vol. 110. Figure 1. Endemic elements of British Columbia and immmediately adjacent regions. 1 - Queen Charlotte Islands- Northern Vancouver Island-Southeastern Alaska, 2 - Southern Vancouver Island-Lower Fraser Valley, 3 - Coast- Cascade Mountains-Selkirk Mountains, 4 - Rocky Mountains (Southern Canada-Northern ). Islands (Calder and Taylor 1968). These plants often have ranges which also extend to adjacent islands or the mainland (Figure 1). For instance, seven of the 10 plants in this region range south to northern Vancouver Island. These include Queen Charlotte Avens {Geiim schofieldii Calder & Taylor*), Queen Charlotte Isopyrum (Isopyrum savilei Calder & Taylor*), Calder's Lovage {Ligusticum calderi Mathias & Const.*), Alp Lily {Lloydia serotina [L.] Richenb. Calder & Taylor*), Taylor's Saxifrage {Saxifraga taylori Calder & Savile*), Queen Charlotte Butterweed (Senecio moresbiensis [Calder & Taylor] Dougl. & G. Ruyle- Dougl.*) and Queen Charlotte Twinflower Violet {Viola biflora L. ssp. carlottae Calder & Taylor*). *Taxa marked with an asterisk are those currently being tracked by the British Columbia Conservation Data Centre. Ligusticum calderi, Senecio moresbiensis, and Glabrous Dwarf Willow {Salix reticulata L. ssp. glabellicarpa Argus*), also range north to southeast- em Alaska. Cordate-leaved Saxifrage (Saxifraga nel- soniana D. Don ssp. carlottae [Calder & Savile] Hult.*) also occurs in the Coast Mountains on the adjacent mainland. Newcombe's Butterweed [Senecio newcombei Greene*) is the only species known to be restricted entirely to the Queen Charlotte Islands at this time. 2. Southern Vancouver Island-Lower Fraser River Valley Region This region includes the remaining two (of nine) taxa which have their ranges entirely within British Columbia (Figure 1). Both species, Vancouver Island Beggarsticks (Bidens amplissima Greene*) and Maco
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