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(Chen et al. 2006). The two grass volumes in this series treat 10 subfamilies, 25 tribes, 236 genera, and 1373 species. Of these, all the subfamilies, 22 tribes
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series; ray pappi usually present (usually none in Arida) > 25 25 Cypselae 2(–3)-nerved Townsendia 25 Cypselae smooth (at most obscurely nerved) or 4–13-ribbed
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not twisted with age > 25 25 Cauline leaf blade margins 1-3-pinnatisect, pectinate, pinnatifid, or palmately 3-7-lobed > 26 25 Cauline leaf blade margins
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22 24 Spikelets with 2-25 bisexual florets, the sterile or staminate florets, if present, distal to the bisexual florets. > 25 25 Sheaths closed for at
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Peripheral florets (disciform heads) 50–200 in 1–4 series, pistillate. Disc-florets 25–450, bisexual, fertile; corollas yellow (nerves orange-resinous), tubes shorter
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wide distally. > 25 25 Plants densely cespitose, short-rhizomatous; pistillate scales acute to acuminate. Carex sect. Heleoglochin 25 Plants loosely cespitose
80 KB (3,349 words) - 15:29, 15 December 2020
Stenotaphrum, Urochloa R. Br. Mary E. Barkworth Treatment appears in FNA Volume 25. Treatment on page 353. Plants annual or perennial; habit various. Culms 3-800
21 KB (1,188 words) - 03:56, 30 July 2020
Paniceae Link Grass Phylogeny Working Group Treatment appears in FNA Volume 25. Treatment on page 351. Plants annual or perennial; synoecious, monoecious
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extension shoots. 64f.Crataegus ser. Triflorae 5 Flowers 18–25 mm diam.; stamens (5 or)10 or 20–25; shrubs or trees 1- to few-stemmed, main trunk dominant;
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ex Beilschm. Grass Phylogeny Working Group Treatment appears in FNA Volume 25. Treatment on page 13. Plants annual or perennial; usually synoecious, sometimes
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tissue different from that of body of cypsela) > 25 24 Cypselae sometimes sharp-edged (not winged) > 27 25 Heads in glomerules or borne singly (sessile or
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placentation usually parietal, sometimes axile on intruded, fused placentae; ovules 1–25 per ovary; style 1 per carpel, distinct or connate; stigmas 2–4, truncate
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(Bellis, Asteraceae) inferred from nrDNA ITS sequences. Molec. Phylogen. Evol. 25: 157–171. Hall, H. M. 1928. The genus Haplopappus: A phylogenetic study in
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Willkommia, Zoysia Dumort. Mary E. Barkworth Treatment appears in FNA Volume 25. Treatment on page 14. Plants annual or perennial. Culms 1-500 cm, not woody
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caducous. Pedicels present. Flowers: perianth and androecium epigynous, 8–25 mm diam.; hypanthium ± obconic, constricted at disc except for opening, 2–6
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spacer (ITS) sequences and chloroplast DNA restriction site data. Syst. Bot. 25: 539–565. Asteraceae (tribe Heliantheae) subtribe Ambrosiinae, Asteraceae
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strigillose; pappi persistent, outer setiform scales (0.25–0.5 mm; rarely present) plus 2 series of 25–45 longer, barbellate bristles, mid apically attenuate
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yellow > 25 25 Inflorescences of 1 involucre atop peduncle; inflorescence bracts absent; Beaverhead Mountains, Lemhi County, Idaho Eriogonum soliceps 25 Inflorescences
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(Hitchc. & Chase) Gould Mary E. Barkworth Treatment appears in FNA Volume 25. Treatment on page 406. Plants perennial; cespitose, sometimes rhizomatous
26 KB (1,343 words) - 04:00, 30 July 2020