classification that draws heavily on floral characters may need extensive revision. A major overhaul of the infrageneric classification of Penstemon must
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Crocanthemum scoparium, Crocanthemum suffrutescens Spach Ann. Sci. Nat., Bot., sér. 2, 6: 370. 1836. Bruce A. Sorrie Common names: Frostweed rushrose rockrose
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and Rhytidiaceae. J. Hattori Bot. Lab. 35: 155–168. Rohrer, J. R. 1985. A generic revision of the Hylocomiaceae. J. Hattori Bot. Lab. 59: 241–278. Rohrer
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1921. The leaf structure of the Iridaceae. Ann. Bot. (Oxford) 35: 301–336. Goldblatt, P. 1975. Revision of the bulbous Iridaceae of North America. Brittonia
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13, pp. 270–344. Tucker, G. C. 1994. A revision of the Mexican species of Cyperus L. (Cyperaceae). Syst. Bot. Monogr. 43: 1–214. Cyperus subg. Cyperus
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(Viscaceae). Syst. Bot. Monogr. 66. Trelease, W. 1916. The Genus Phoradendron: A Monographic Revision. Urbana. Wiens, D. 1964. Revision of the acataphyllous
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Inuleae). Syst. Bot. 12: 305–319. Bayer, R. J. 1990. A phylogenetic reconstruction of Antennaria Gaertner (Asteraceae: Inuleae). Canad. J. Bot. 68: 1389–1397
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morphology, venation, and relationships. Bull. Torrey Bot. Club 38: 153--190. Benedict, R. C. 1914. A revision of the genus Vittaria J. E. Smith. I. The species
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oregona and specimens of Brewer’s (golden)aster. Syst. Bot. 13: 547–558. Semple, J. C. 1996. A Revision of Heterotheca Sect. Phyllotheca (Nutt.) Harms (Compositae:
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includes some extremely difficult species complexes that need taxonomic revision: (1) The E. palustris complex (species 1–7) is discussed under 1. E. palustris
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pilosa, Braya thorild-wulffii Sternberg & Hoppe Denkschr. Königl.-Baier. Bot. Ges. Regensburg 1(1): 65. 1815. James G. Harris Etymology: For Franz Gabriel
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1992. A taxonomic revision of Orthocarpus (Scrophulariaceae—tribe Pediculareae). Syst. Bot. 17: 560–582. Keck, D. D. 1927. A revision of the genus Orthocarpus
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Schwaegr. (Musci). Amer. J. Bot. 72: 75–85. Rushing, A. E. 1986. A revision of the genus Bruchia Schwaegr. (Musci). J. Hattori Bot. Lab. 60: 35–83. Bruchia
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group to the rest of the family. Chaudhri, M. N. 1968. A revision of the Paronychiinae. Meded. Bot. Mus. Utrecht 285: 1–440. Achyronychia, Cardionema, Corrigiola
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(Ranunculaceae) and its taxonomic implications. Sida 15: 377-390. James, J. F. 1883. Revision of the genus Clematis of the United States. J. Cincinnati Soc. Nat. Hist
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provide especially critical but seldom-used taxonomic characters. Detailed revisions utilizing these characters have been undertaken only in a few areas of
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Implications for species delimitation. Bot. J. Linn. Soc. 151: 345–354. Wiggins, I. L. 1936. A resurrection and revision of the genus Iliamna Greene. Contr
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lugens, Triteleia montana, Triteleia peduncularis Douglas ex Lindley Edwards’s Bot. Reg. 15: under plate 1293. 1830. J. Chris Pires Common names: Triteleia triplet-lily
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islands in the northern Rocky Mountains. Amer. J. Bot. 95: 381–392. Pennell, F. W. 1933. A revision of Synthyris and Besseya. Proc. Acad. Nat. Sci. Philadelphia
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genusCampylocentrum Show Lower Taxa Campylocentrum pachyrrhizum Bentham J. Linn. Soc., Bot. 18: 337. 1881. James D. Ackerman Etymology: Greek kampylos, crooked, and
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