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(Last Modified On 6/18/2013)
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(Last Modified On 6/18/2013)
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Subspecific
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Pectis elongata var. oerstediana (Rydb.) Keil
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Synonym
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Pectis oerstediana Rydb., N. Amer. Flora 34: 213. TYPE: Nicaragua, Chinadega, Realejo, 19' Jan. 1903, Baker 2137 (US, holotype; GH, MICH, MO, MSC, ND-G, POM, UC, isotypes).
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Description
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Mostly erect herbs, lemon-scented or with disagreeable odor; stems 10-100 cm long, usually purplish, often diffusely, much branched above. Leaves 1-4 cm long, 1-4 mm wide, with 2-11 pairs of bristles. Inflorescence cymosely, much branched; peduncles mostly 10-25 mm long. Heads radiate; involucres cylindric at anthesis but spreading in age, the bracts 4-5.5 mm long, with erect to spreading acuminate tips, smooth or minutely ciliolate, dotted with 3-6 pairs of narrow glands; ray corollas 3.5-5.5 mm long; disc corollas 2-3.5 mm long. Achenes 2-2.5 mm long; pappus mostly of 4-8 bristles 2-5 mm long. Chromosome number n = 12
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Habit
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herbs
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Distribution
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Pectis elongata var. oerstediana occurs only in Central America, extending from Guatemala to Panama.
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Note
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In some areas, a decoction of the plants is prepared as a medicinal beverage. The odor of some of the plants of this taxon has been likened by some collectors to that of stinkbugs (Pentatomidae) while other plants are lemon scented or combine both scents. In Panama, var. oerstediana is quite common on the Pacific slope from Chiriqui to central Panama. It flowers primarily from October to January.
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Specimen
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CANAL ZONE: Ancon Hill, Paul 218 (US). Chiva-Chiva trail, Red Tank to Pueblo Nuevo, Piper 5742 (GGH, US). Sabana of Panama, Pittier 2543 (GH, NY, US). Balboa, Standley 25297 (GH, US), 30902 (US). Corozal Road near Panama, Standley 26800 (US). Between Fort Clayton and Corozal, Standley 29125 (US). CHIBiQuf: 14 mi N of David, Lewis et al. 656 (GH, MO). COCLE: S of El Valle de Anton, Allen 2809 (GH, MO, US). E of Rio Teta and Interam. Hwy., Blum & Tyson (FSU, MO). Rio Hato airstrip, Burch et al. 1139 (DUKE, GH, MO, NY, UC, US). Aguadulce, Pittier 4853 (US). Vic. of Ola, Pittier 5084 (GH, NY, US). Penonome and vic., Williams 170 (NY, US). HERRERA: Vic. of Ocu', Allen 4040 (MO). 4 mi S of Los Pozos, Dwyer 2649 (MO). Ocu', Ebinger 1088 (GH, MO). Vic. of Ocu', Stern et al. 1695 (MO, US). Vic. of Las Minas, Stern et al. 1810 (MICH, MO, US). 4 mi S of Los Pozos, Tyson 2649 (FSU). 10 mi S of Ocu', Tyson et al. 2879 (MO). PANAMA': Vic. of Pacora, Allen 999 (MO). Between Capira and Potrero, Dodge & Hunter 8619 (MO). Between Panamai and Chepo, Dodge et al. 16650 (GH, MO, NY). Nueva Gorgona, Duke 4541 (MO). Near Playa Rio Mar, Duke 11770 (DUKE, MO). Tocumen airport, Dwyer 4005 (MO). Santa Clara, Dwyer & Duke 8290, 8291 (both MO). San Jose Island, Erlanson 571, 580 (both US). Llanos de Panamal Viejo, Heriberto 287 (US). Near Chepo, Hunter & Allen 16 (MO). San Jose Island, Johnston 172 (GH, US). Near Alajuela, Killip 3224 (GH, NY, US). Between Las Sabanas and Rio Yguana, Macbride 2660 (F, US). 7 mi S of Campana, McDaniel 8315 (DUKE, FSU). Bayano River, Mell s.n. (NY, US). Sabana de Dormisolo near Chepo, Pittier 4658 (NY, US). Matias Hernaindez, Pittier 6886 (US). Bella Vista, Standley 25364 (US). Las Sabanas, Standley 25889 (GH, US), 25930 (US). Near Punta Paitilla, Standley 26290 (MO, US). E of Rio Tocumen, Standley 26580 (US). Near Panama', Standley 27722 (GGH, US). Rio Tapia, Standley 28187 (CGH, US). Rio Tocumen, Standley 29476 (US). Tumba Muerto Road, near Panama, Standley 29766 (US). Nuevo San Francisco, Standley 30711, 30784 (both US), 30755 (US, in part). Between Las Sabanas and Matias Hernandez, Standley 31853 (US). Between Matias Hernandez and Juan Diaz, Standley 32089 (US). VERAGUAS: Vic. of Santiago, Allen 1018 (F, GH, MO, US). PROVINCE UNKNOWN: Seemann s.n. (GH, K).
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