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THE WEST VIRGINIA FLORA PSEUDOTAENIDIA Mackenzie. Glabrous and glaucous erect perennials from stout hori zontal to perpendicular rootstocks. Leaves ternately de compound, the leaflets entire. Umbels borne on terminai and lateral peduncles, compound, the rays very unequal in length. Involucre and involucels none or rarely of one o1" two bractlets. Corolla not seen.* Calyx-teeth short, but evident. Fruit thick, strongly flattened dorsally, oval or obovate, glabrous. Dorsal and intermediate ribs of carpel filiform and very much narrower than the intervals, coming together at base and apex to form short prominent ridges ; lateral ribs thick, broadly winged and contiguous to those of the other carpel so as to form a broad one-edged margin around the fruit, nerved dorsally at the inner margin and also near the outer margin. Oil-tubes solitary in the inter vals or often two in the intervals nearest the lateral ribs, two entirely developed and two partially developed on the commissural side. Top of fruit thickened by the converging ribs, but stylopodium absent or much depressed. Seed-face plane, the back rounded.

P. montana Mackenzie, Torreya 3:159 (1903). Plant 4-8 dm. high, entirely glabrous; stems striate; leaves several, the blades two or three times ternately com pound ; the segments entire, ovate or obiong-lar.ceolate, oval or oblanceolate, glaucous and strongly veined beneath, ses sile or stalked, 10-30 mm. long, 6-20 mm. wide, mucronate, often inequilateral at base; petioles dilated at base, striate and clasping the stem; peduncles 6-20 cm. long; rays of umbels 8-12, 1-5 cm. long; rays of umbellets usually slightly more numerous, 3-7 mm. long ; fruit 5-6 mm. long, 4 mm. wide, the lateral ribs 1 mm. wide. The plant exactly resembles Tacuidia integerrima (L.) Drude in everything except the fruit. In dry open woods, in a clayey soil intermixed with loose rocks. Greenbrier : side of Kate's Mountain, August 29, 1903 (Mackenzie). SIUM Linn. S. cicutaeFOlium Gmel. In swampy places. Randolph : on Tygart Valley River near Huttonville (Grcenman 434). •Almost certainly yellow.