flora). Lellinger, D. B. 1985. A Field Manual of the Ferns & Fern-allies of the United States & Canada. Washington. Mickel, J. T. 1979b. The fern genus Cheilanthes
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arranged according to their known or presumed chromosome group designation. Because the BB group includes not only the majority of species of sect. Epilobium
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taxonomic revision of the Castilleja viscidula group. Mem. New York Bot. Gard. 21: 1–63. Pennell, F. W. 1934b. Castilleja in Alaska and northwestern Canada
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limit of the group being in southern Central America. The other dioecious group, sect. Berisia, is primarily Eurasian. The remaining groups all have some
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smaller adaxial cells, a weak or strong abaxial stereid band, and sometimes a group of hydroids, but no abaxial epidermis of larger cells; basal-cells abruptly
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usually overlapping by 50–100% of their length, or 2–4 in group, separated by small gap from next group and with distal fruits overlapping, pale tan, narrowly
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are essential in defining species of sect. Niveae are summarized by B. Eriksen and B. A. Jurtzev (1999), modified for the current treatment as discussed
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that Cyperaceae and Poaceae are not closely related (M. R. Duvall et al. 1993b; G. M. Plunkett et al. 1995); they do support the concept of close relationship
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(1920b, 1921, 1935, 1940), D. D. Keck (1932, 1936b, 1937, 1937b, 1938, 1940b, 1945), Keck and A. Cronquist (1957), and F. S. Crosswhite (1965, 1965b, 1965c
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Brachytheciastrum was recognized as an infrageneric group within Brachythecium, as the velutinum group or sect. Velutina De Notaris, until M. S. Ignatov
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372–395. Floderus, B. G. O. 1923. Om Grönlands salices. (On the Salicaceae of Greenland.) Meddel. Grønland 63: 61–204. Judd, W. S. 1997b. The Flacourtiaceae
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the other two groups. Spartina spartinae is the only species of his first group to grow in the Flora region. Like other members of the group, it has hard
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the palms as the sister group to the Commelinanae clade (M. W. Chase et al. 1993; J. I. Davis 1995; M. R. Duvall et al. 1993b), with which they share
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arisen from within the Conyzinae, apparently as the sister group to the E. bellioides de Candolle group of Erigeron. Elisens, W. J., R. D. Boyd, and A. D. Wolfe
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66 species in the flora with 64 natives and 2 naturalized). Burns, R.M. and B.H. Honkala. 1990. Silvics of North America. 1.Conifers. Washington. [Agric
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molecular phylogenies (Yang F. S. et al. 2003; R. H. Ree 2005; B. W. Robart et al. 2015; Yu W. B. et al. 2015) indicate inconsistencies even in the treatment
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Mex., Ala., Ark., Ga., Ind., Mich., Minn., Ohio, W.Va., Alta., B.C., Greenland, Man., N.B., Nfld. and Labr., N.S., N.W.T., Nunavut, Ont., P.E.I., Que.,
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Madiinae). Additional information may be found in B. G. Baldwin et al. (2002), H. Robinson (1981), and B. Nordenstam (1977[1978]). Senecionid shrubs with
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(sect. Coccineae) ser. Virides Loudon Arbor. Frutic. Brit. 2: 816. 1838. James B. Phipps Treatment appears in FNA Volume 9. Treatment on page 525. Mentioned
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species in the flora). The North American pitcher plants are a fascinating group of carnivorous plants with leaves modified into tubular pitfall traps that
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