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(Last Modified On 7/18/2013)
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(Last Modified On 7/18/2013)
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Species
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Serjania atrolineata Sauv. & Wright
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PlaceOfPublication
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Fl. Cubana 24. 1873.
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Note
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LECTOTYPE: Cuba, Wright 1587 (BR, G, GH, K, NY, P)
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Synonym
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Serjania scatens Radik., Monogr. Serj. 213. 1875. TYPE: Panama and western Colombia, Cumming 1132 (K). Serjania atrolineata f. lancifolia Radlk., Repert. Spec. Nov. Regni Veg. 17: 357. 1921. TYPE: Pan- ama, Pittier 3379 (NY).
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Description
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Tendrilled lianas, glabrate in age; stems ribbed, minutely appressed-pubescent; wood composite, usually with 3 flattened peripheral bundles, the bundles moder- ately large, sometimes irregular; sap often drying dark and resinous; tendrils bifid. Leaves biternate; petiole, rachis, and petiolule ribbed to narrowly winged; leaf- lets elliptic to lanceolate to oblanceolate, obtuse to acuminate at the apex, the acumen often blunt with a sharp apiculum, acute to obtuse or attenuate at the base, 4-8.5 cm long, 1.5-3 cm wide, to 15 cm long and 6 cm wide on juvenile leaves, usually dentate above the middle, with distinct, irregular black lines on the lower surface, these sometimes inconspicuous when fresh, the juvenile leaves sometimes with pubescent midribs; stipules minute, ovate. Thyrses small, race- mose and either solitary in leaf axils or on tendrils, or in open terminal panicles. Flowers white, 3-4 mm long; sepals densely tomentose; sepals, petals, and scales with reddish black lines like those of the leaves; petals to 3 mm long, each sub- tended by a broad green gland, those of the anterior petal with an ear-shaped orange lobe, the scales of the anterior petals ca. 2 mm long, yellow, the crest emarginate, held in front of and slightly below the cluster of stamens, the de- flexed appendage densely villous, pendent to almost the base of the petal; stamens 7-9, the filaments pubescent; staminate flowers with the stamens equalling petals, ca. 3 mm long, the pistil very reduced; bisexual flowers with the stamens ca. 2 mm long, the ovary, style and stigma together 3-3.5 mm long, the stigmas 3, ca. 1 mm long, the ovary tomentose. Fruits ovate-cordate, 2-2.5 cm long, the cells blackened and densely birtellous, the wings hirtellous on the inner margin, conspicuously marked with irregular black lines, gradually constricted usually well below the seed-bearing part.
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Habit
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lianas
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Note
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Serjania atrolineata is recognized by the irregular black lines on the leaves, flowers, and fruits. It is one of the more common and widespread species of Serjania in Panama. The species flowers throughout the dry season, January to April, but especially during the latter half of the dry season. Fruits mature in about one month and are mature mostly during March to May.
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Distribution
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ranges from Mexico to Venezuela and the West Indies.
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Note
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In Panama it is known principally from drier parts of tropical moist forest but also from tropical dry forest, premontane wet forest, and premontane moist forest.
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Specimen
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CANAL ZONE: Barro Colorado Island, Croat 4673 (F, MO, NY, SCZ), 4941 (MO, SCZ), 7410 (MO), 7685, 7692 (both F, MO), 7793 (SCZ), 7993 (MO, SCZ), 10304 (MO); Fos- ter 2164 (DUKE, GH, MICH, PMA); Shattuck 50 (A, F, MO); Standley 40963 (US); Wood- worth & Vestal 516 (A, MO), 657 (A, F, MO). Near mouth of Rio Chagres, Allen 886 (F, G, K, MO, NY, P, US). Victoria Fill near Miraflores Locks, Allen 1747 (GH, MO). Fort San Lorenzo, Croat 15438 (MO). Gatuin Town, Hayes 374 (NY, US). Ca. 16 miles N of Gamboa, Lewis et al. 5442 (MO, SCZ), 5450 (GH, MO), 5451 (MO, SCZ). Boy Scout Road, Madden Dam area, Maxwell 4022 (DUKE). Rio Aqua Salud near Frijoles, Piper 5871 (US). Vic. of Ancon, Piper 6033 (C, US). Boy Scout Road, Madden Dam area, Porter et al. 4022 (MO). Fort San Lorenzo, Porter et al. 5002 (GH, MO). Miraflores Lake near water plant, Tyson & Blum 3556 (SCZ). Fort Sherman near point, Tyson & Blum 3791 (MO, SCZ). CHIRIQUI: Burica Peninsula near Punta de Piedra, Croat 22460 (MO). 4 mi S of Puerto Armuelles, Liesner 364 (MO). COCLE: 1 mi W of Santa Clara, Tyson 7246 (PMA). Penonome, 50-1000 ft, Williams 74 (NY, US). COLON: Ridge NE of Trans- isthmian Highway, Lewis et al. 5411 (GH, K, MO). DARIE'N: Vic. of old gold mine at Can4, SW of Cerro Pirre, Croat 27303 (MO). Rio Pirre, Croat & Porter 15502, 15545 (both MO). HERRMEA: Just S of Ocui, D'Arcy 4126 (MO), 4128 (GH, MO). LOS SANTOS: 3 mi S of Las Palmas, D'Arcy 4206 (MO). PANAMA: Perlas Isles, Pedro Gonzales Island, Croat 9153 (MO, SCZ). 2 mi W of El Valle, Croat 14630 (MO). Isla del Rey, Duke 9512 (MO). Isla Chepillo, Duke 10322 (MO). Isla Saboga, Duke 10347 (MO). Between Rio Pacora and Chepo, Dwyer et al. 5158 (MO, SCZ). San Jose Island, Erlanson 26 (GH, US), 180 (GGH, NY, US); Johnston 517 (GHi), 663 (MO), 696 (GGH, US), 710 (GHi), 1413 (GH, MO), 1450 (GH). 16 miles N of Gamboa, Lewis et al. 5442 (SCZ). Between Sabanas and Rio Yugana, MacBride 2673 (F). Toboquilla Island, Miller 1985 (US). Sabanas N of Panama City, Paul 392, 409 (both US). Vic. of Bella Vista, Piper 5365 (US). Punta Paitilla, Piper 5396 (US). Between Rio Pacora and Chepo, Porter et al. 5158 (SGZ). SAN BLAS: Vic. of Puerto Obaldia, Croat 16890, 17008 (MO). VEBAGUAS: Trail between Cafiazas and the foot of the Cordillera Central, Allen 200 (A, MO, US). E edge of Cafiazas, Tyson 3731 (MO, SCZ).
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