Tauschia decumbens (Benth.) J. M. Coult. & Rose ex Druce

Tauschia mariana (S. Wats.) Coult. & Rose; Drude in
E. & P. Nat. Pfl. 3 8 : 170. 1898.
Arracacia mariana S. Wats. Proc. Am. Acad. 26: 136. 1891. Tauschia Roseana H. Wolff, Repert. Sp. Nov. 9: 418, ex descr. 1911.
Slender, short-caulescent, decumbent to ascending from a woody root, 15-40 cm. high, glabrous except for the puberulent inflorescence; leaves oblong in general outline, excluding the petioles 5-10 cm. long, 3-5 cm. broad, pinnately decompound, the ultimate divisions linearlanceolate to linear-oblong, 10-25 mm. long, saliently toothed; petioles 3-5 cm. long; peduncles slender, 8-25 cm. long; involucre wanting, or of an occasional linear bract; involucel of several linear bractlets, 4—6 mm. long, often exceeding the flowers and occasionally the fruit; fertile rays 3-7, unequal, 5-13 mm. long, puberulent; pedicels 1-3 mm. long, puberulent; calyx-teeth minute; flowers yellow or purplish; styles slender, recurved; carpophore 2-cleft about one-fourth of its length, the halves approximate throughout; fruit oval, tapering at the apex, 6-8 mm. long, 4-5 mm. broad, the ribs prominent, acute; oil-tubes small, 2 or 3 in the intervals, 2-4 on the commissure; seedface deeply sulcate.
Type locality: "On hillsides at Flore de Maria," Mexico, Pringle 3480.
Distribution: High mountains, Mexico (state) to Michoacan (Arsene 3382, Hinton 583,