. An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian. Botany; Botany. 12. Eriogonum microthecum Nutt. Slen- der Eriogonum. Fig. 1594. Eriogonum microthecum Nutt. Journ. Acad. Phila. (II.) 1: 172. 1848. Perennial, woody, especially below, more or less floccose-tomentose throughout; stem erect or ascending, branched, especially from the base, leafy below, naked above, 6'-i2' high. Leaves oblong or oblanceolate, obtuse at the apex,
. An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian. Botany; Botany. 12. Eriogonum microthecum Nutt. Slen- der Eriogonum. Fig. 1594. Eriogonum microthecum Nutt. Journ. Acad. Phila. (II.) 1: 172. 1848. Perennial, woody, especially below, more or less floccose-tomentose throughout; stem erect or ascending, branched, especially from the base, leafy below, naked above, 6'-i2' high. Leaves oblong or oblanceolate, obtuse at the apex, nar- rowed into short petioles, ¥-2' long, the upper bract-like; inflorescence compoundly cymose; involucres top-shaped, ii" long, 5-toothed, the teeth obtusish; bracts triangular; calyx white, pink or reddish, i£" long, campanulate, at length constricted near the middle; stamens and style- branches included; achene pointed, 1" long, rough on the angles. Western Nebraska to Washington, south to New Mexico and California. 13. Eriogonum effusum Nutt. Effuse Eriogonum. Fig. 1^95. Eriogonum effusum Nutt. Journ. Acad. Phila. (II.) 1: 164. 1848. Eriogonum microthecum effusum T. & G. Proc. Am. Acad. 8: 172. 1870. Perennial, shrubby, 6'-i6' high, white floc- cose-tomentose ; stem stout, diffusely branched. Leaves linear or narrowly oblong, ¥-i¥ long, revolute; peduncles ¥-4' long, topped by 5-7 times compound stiff corymbose cymes; bracts scale-like; involucres narrowly campanulate, i"-ii" high, the tube slightly angled, the teeth rather obtuse; calyx 1" high, white, glabrous, the outer segments cuneate-obovate, rounded at the apex, the inner notched; filaments vil- lous, especially below the middle; achenes 3-angled. On dry plains or prairies, South Dakota and Nebraska to Wyoming, south to New Mexico. Summer. 14. Eriogonum cernuum Nutt. Nodding Eriogonum. Fig. 1596. E. cernuum Nutt. Journ. Acad. Phila. (II.) 1: 162. 1848. Annual, low,
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
