. Brigham Young University science bulletin. Biology -- Periodicals. 46 Brioham Young Univebsity Science Bulletin. Fio. 41. Parkland tundra near the uppermost limit of trees along Timber Creek at approximately 68°26' N; 139°45' W. Abandoned meanders show along the gravel margin. of Lisbume Limestone .show as the light colored barren area in the upper left. Salix and Picea glauca fringed stream and meander. Matricaria matricarioides (Les.) Porter Locality #76, WR 10435, 10 July. Weed of disturbed sites, at Old Crow. Petasites frigidus (L.) Fries var. frigidus Locality #24, WR 10124a,
. Brigham Young University science bulletin. Biology -- Periodicals. 46 Brioham Young Univebsity Science Bulletin. Fio. 41. Parkland tundra near the uppermost limit of trees along Timber Creek at approximately 68°26' N; 139°45' W. Abandoned meanders show along the gravel margin. of Lisbume Limestone .show as the light colored barren area in the upper left. Salix and Picea glauca fringed stream and meander. Matricaria matricarioides (Les.) Porter Locality #76, WR 10435, 10 July. Weed of disturbed sites, at Old Crow. Petasites frigidus (L.) Fries var. frigidus Locality #24, WR 10124a, 1 July; #42, WR 10332, 8 July; #60, WR 10036, 30 June. Mea- dows, willow thickets, and heathlands. Saussurea angustifolia (Willd.) DC var. angustifolia Locality #33, WR 10386, 9 July; #51, WR, 10515, 11 July; #56, WR 10591, 12 July. Siliceous conglomerates in alpine tundra, heathlands, and on gravel bars. Senecio (Ledeb.) Fcdtsch. VAT. ulriKri (Steffen) Porsild Locality #4, WR 10239, 4 July; #7, WR 10159, 1 July; #16, Rigbv 68, 24 June; #34, WR 10204, 3 July; #40, WR 10644, 14 July; #57, WR 10078, .30 June; #60, WR 10044, .30 June. A dominant species in tundra generally. Both ligulate and nonligulate phases are represented. Senecio congestus (R. Hr.) DC. Locality #14, WR 10673, 15 July; #62, WR 10549a, 13 July; #72, WR 10649, 14 July. Gra- velly seashores and spits, and lakes shores. Senecio fuscatus (Jord. & Fourr.) Hayek Locality #9, WR 10142, 1 July; #43, WR 10721, 15 July. Alpine sparse tundra, on Ner- uokpuk formation. Senecio lugens Hook Locality #5, WR 10605, 13 July; #25, WR 10622, 13 Julv; #27, Rigbv 143, 28 July; #29, WR 10737, 15 July; #50,'WR 10529, 11 July; #.54, WR 10284, 6 July; #.59, WR 10473, 10 July; #67, WR 10108, 1 July; #71, WR 10495, 11 July. Gravel bars and meadows. Senecio resed if alius Less. Locality #1, WR 10264, 5 July; #9, WR 10143, 1 July; #44, WR 10364, 9 July; #48, WR , 9 July; #74, Rigby , 26 July. Alpine tundra,
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