Difference between revisions of "Perityle lemmonii"
Contr. Gray Herb. 56: 39. 1918.
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|common_names=Lemmon’s rock daisy | |common_names=Lemmon’s rock daisy | ||
| − | |basionyms={{Treatment/ID/ | + | |basionyms={{Treatment/ID/Basionym |
|name=Laphamia lemmonii | |name=Laphamia lemmonii | ||
|authority=A. Gray | |authority=A. Gray | ||
| + | |publication_title=Proc. Amer. Acad. Arts | ||
| + | |publication_place=16: 101. 1880 (as lemmoni) | ||
}} | }} | ||
|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
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|publication year=1918 | |publication year=1918 | ||
|special status= | |special status= | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V19-20-21/V21_825.xml |
|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Peritylinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Peritylinae | ||
Revision as of 18:50, 24 September 2019
Perennials or subshrubs, 6–17(–23) cm (densely clumped, stems leafy); usually densely pilose to villous, sometimes glabrate. Leaves (opposite or alternate): petioles 3–8(–10) mm (usually shorter than blades); blades ovate to ovate-deltate (margins crenate, lacerate, laciniate, or serrate), or 3–5-lobed or pinnately divided (lobes crenate, lacerate, laciniate, lobed, or serrate), 6–18 × 7–20 mm. Heads borne singly or (2–3) in corymbiform arrays (often obscured by leaves), 7–10 × 5–9 mm. Peduncles 1–5(–10) mm. Involucres campanulate. Phyllaries 10–16, linear-lanceolate, lanceolate, to oblanceolate, 4–6.4(–8) × 1–1.7 mm (apices acute). Ray florets 0. Disc florets 20–40; corollas yellow, often tinged with purple, tubes 1–1.9 mm, throats broadly tubular to subfunnelform, 2–2.5(–2.9) mm, lobes 0.4–0.6 mm. Cypselae narrowly oblong to narrowly oblanceolate, 2.5–3.2(–3.6) mm, margins thin-calloused, short-hairy; pappi usually of 1(–2) delicate bristles 1–3(–4) mm, rarely plus vestigial, hyaline scales, sometimes 0. 2n = 34.
Phenology: Flowering spring–fall.
Habitat: Crevices of granitic boulders and cliffs
Elevation: 600–2300 m
Distribution
Ariz., N.Mex., Mexico (Chihuahua).
Discussion
Perityle lemmonii, which occurs in the mountain areas of southeastern Arizona and southwestern New Mexico, has variable leaf morphology that is often consistent within geographic populations. Its former inclusion within P. dissecta is discussed under that species.
Selected References
None.