Phyiologia (October 1991) 71(4):269-280. NOMENCLATURAL NOTES FOR THE NORTH AMERICAN FLORA. VIII John T. Kartesz & Kancheepuram N. Gandhi The North Carolina Botanical Garden, Department of Biology, Coker Hall, University of North Carolina, Chapel Hill, North Carolina 27599-3280, U.S.A. ABSTRACT Cynanchuin louiseae Kartesz & Gaudlii, novi. nov. is proposed to replace Cynanchuin nigrum (L.) Pers. (a later homonym of Cynanchum nigrum Cav.). Kuhnia eupatorioides L. var. gracilis Torr. & Gray is treated as a synonym of Bnckellia eupatorioides (L.) Shinners var. eu-patorioides. The following new combinations are proposed: Ascle-pias uncialis E. Greene ssp. ruthiae (Maguire) Kartesz & Gandhi; Daptisia bracteata Muhl. ex Ell. var. leucophaea (Nutt.) Kartesz & Gandhi; Descurainia incana (Bernh. eiFisch. & C.A. Mey.) Dorn ssp. incisa (Engelm. ei A. Gray) Kartesz & Gandhi; D. incana (Bernh. ex Fisch. & C.A. Mey.) Dorn ssp. procera (E. Greene) Kartesz & Gandhi; D. incana (Bernh. ex Fisch. & C.A. Mey.) Dorn ssp. viscosa (Rydb.) Kartesz & Gandhi; Evax verna Raf. var. drunirnondii (Torr. & Gray) Kartesz & Gandhi; Lathyrus japonicus Willd. var. niaritimus (L.) Kartesz & Gandhi; Phacelia hastata Dougl. ex Lehmann var. dasy-phylla (Jepson) Kartesz & Gandhi; Pilosocereus robinii (Lemaire) Byles & Rowley var. deeringii (Small) Kartesz & Gandhi; Silphiuin conipusituni Miclix. var. venosum (Small) Kartesz & Gandhi; Town-sendia alpigena Piper var. caeiilinensis (Welsh) Kartesz & Gandhi. KEY WORDS: Floristics, nomenclature, Asclepiadaceae, Aster-aceae, Brassicaceae, Cactaceae, Fabaceae, Ilydrophyllaceae, As-clepias, Cynanchum, Baptisia, Bnckellia, Descurainia, Engeron, Evax, Lathyrus, Phacelia, Pilosocereus, Pisum, Silphium, Sisym-brium, Sophia, and Townsendia. Introduction Continuing with the "NOMENCLATURAL NOTES FOR THE NORTH AMERICAN FLORA" (Kartesz & Gandhi 1989, 1990a, 1990b, 1990c, 1991a, 1991b, 1991c), an eighth note in the series is presented here toward advancing our understanding of North American plant names. 269
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