Phytologia (November 1998) 85(5):336-340. A NEW SPECIES OF VERBESINA (ASTERACEAE: HELIANTHEAE) FROM NUEVO LEON, MEXICO B.L. Turner Plant Resources Center, University of Texas, Austin, Texas 78713 U.S. A. ABSTRACT Verbesina tamaunuevana B.L. Turner, spec, nov.y is described from southern Nuevo Le6n, Mexico. It is closely related to the gypsophilic taxa, V, aramberrana B.L. Turner, V. hintoniorum B.L. Turner and V. zaragosana B.L. Turner, but is readily distinguished from all of these in having markedly bicolored leaves. Additionally, so far as known, it does not occur in gypseous soils. A key to these several taxa is provided, along with a photograph of the type. KEY WORDS: Verbesina, Asteraceae, Heliantheae, Mexico Preparation of a taxonomic treatment of the Comps of Mexico (Turner 1996, 1997) has occasioned the present paper. Verbesina tamaunuevana B.L. Turner, spec. nov. Figure 1. TYPE: MEXICO, Nuevo Le6n: Mpio. Dr. Arroyo, below San Josecito, roadside chaparral of oak, cedar and Comarostaphylis, 2000 m, 3 Oct 1998, Hinton et al. 27252 (HOLOTYPE: TEX; Isotype: private collection of Hinton family). Similis V. hintoniorum 'B.L. Turner sed caulibus glandulosae pubescentibus et foliis valde bicoloribus. Perennial rhizomatous herbs 30-40 cm high. Stems purplish, densely and minutely glandular-pubescent, the vestiture ca. 0.2 mm high, among this a smattering of much longer erect to recurved eglandular hairs 0.4-1.0 mm high. Leaves alternate 336
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