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Project Name Data (Last Modified On 9/10/2013)

Flora Data (Last Modified On 9/10/2013)
Species Macrocnemum glabrescens (Benth.) Wedd.
PlaceOfPublication Ann. Sci. Nat. (Paris) 4. 1: 76. 1854.
Synonym Lasioneina glabrescens Benth., Bot. Voy. Sulphur 105. 1844. TYPE: not indicated.
Description Trees to 8 m tall, the branchlets terete, ultimately angular, glabrous, the nodes usually well spaced. Leaves obovate oblong, spathulate, oblong, often vaguely falcate, widely deltoid to obtuse at the apex, acuminate or cuspidate at the apex, the cusps to 1 cm long, basally obtuse, acute or rounded, often inequilateral, the costa plane or immersed above, prominulous beneath, the lateral veins 7-9, ar- cuate, chartaceous to papyraceous, usually discolorous, glabrescent above and beneath, occasionally glabrous, often barbate on the costa and the veins beneath;
Habit Trees
Description petioles 0.5-1.5 cm long, usually stiff; stipules deciduous, foliaceous, oblong or ovate oblong, 1.0-1.5 cm long, obtuse. Inflorescences terminal or axillary, thry- soid paniculate, to 30 cm long, either sessile and with usually 3 branches arising from the stem tip, or pedunculate and the peduncles to 11 cm long, glabrescent, the branches few, well spaced, usually opposite or ternately disposed, the low- ermost to 14 cm long, arcuate or strict, the cymules terminal, few flowered, spreading; bracteoles subulate, divergent. Flowers sessile or subsessile, dark- ening at maturity, the buds clavate capitate; hypanthium oblong, ca. 3.2 mm long, ca. 2.2 mm wide, villosulose, the calycine tube somewhat inflated, 0.5 mm long, petaloid, glabrous inside and out, venose, the calycine teeth 5, triangular, to 1 mm long, minutely puberulent on the margin; corolla pink, the tube cylindrical, 5 mm long or longer, ca. 2 mm wide, stiffly petaloid, glabrous outside and in except usually villose at filament attachment point, the lobes 5, oblong rotund, to 6.5 mm long, glabrous, venose; stamens 5, the anthers oblong rotund, ca. 1 mm long, dorsifixed with a glandular patch at point of filament attachment, the filaments unequal, slender, subulate, 2.5-4.0 mm long, densely villose below the middle, attached at about middle of the tube and continuing downwards in riblike fashion; stigmas 2, oblong, ca. 0.5 mm long, convex in cross section, the style thickly subulate, 6-8 mm long, ca. 0.25 mm wide in middle. Fruits elliptic or fusiform, to 2.5 cm long, to 0.35 cm wide before opening, on opening the valves united at the apex and the base, the interior of valves smooth, yellow, the outside delicately ribbed, pubescent, glabrous, capped by a saucerlike calycine cup and ovarian disc, both to 1 mm long; seeds membranaceous, fusiform, to 3 mm long, often falcate, alate, the surface with crowded irregular lines.
Distribution known from Costa Rica, Panama, and Colom- bia.
Note Duke (8041) indicates the fruits are eaten by loro. Busey and Mahler (351) note that the tree was covered with ants.
Common Palo cuadrado Palo blanco
Common Madrono Guanabana Torete
Common Cedro Macho Cedro Chumaquino
Note In the type photo collection at the Missouri Botanical Garden there is a collection of Wagner from Panama deposited in the Herbarium Regium Monacense (Vien- na). It is definitely M. glabrescens, but it is not the type.
Specimen BOCAS DEL TORO: Daytonia Farm, Cooper 448 (MO). Between Buena Vista and Cerro Pil6n, Kirkbride & Duke 680 (MO). CANAL ZONE: Chiva-Chiva Trail, Allen 2467 (F). Rio Puente, between tunnel and natural bridge, Dodge & Allen 17317 (MO). Chiva-Chiva Trail, Fosberg 27392 (F). Summit, Harvey 5227 (MO). Mindi Hills, Johnston 1734 (MO). Near Gamboa, Rio Mandinga, Kennedy et al. 2382 (MO). Without other locality, Lindsay 455 (MO). Gorgona, Maxon 4741 (F, MO). Rio Masambi Grande, 2 km N of Summit Garden, 80-100 m, Nee 9417 (MO). I mi N of Summit, Tyson et al. 2756 (MO). BARRO COLORADO ISLAND: Aviles 50 (MO), 273 (F); Bailey & Bailey 233 (F, MO), 234 (F), 244 (MO); Bangham 172, 372 (both MO); Brown 26, 76, 142, 193 (all F); Chapman s.n. (F); Croat 4578, 4806, 4944, 4955, 5806, 5933, 7190, 7848, 8699, 11256A, 13169 (all MO); D'Arcy 3929 (MO); Dwyer et al. 8459 (MO); Ebinger 293 (MO); Foster 694, 698 (both F); Frost 26, 135 (both F); Shattuck 423, 659 (both F, MO), 811 (MO); Wetmore & Abbe 218 (F); Wilson I (F); Woodworth & Vestal 333 (F, MO). CHIRIQUf: Corotui, 6 km SW of airport, Puerto Armuelles, Busey 404 (MO). 9 km S x SW of Puerto Armuelles, Busey 728 (MO). 12 mi W of Puerto Armuelles, Croat 22155 (MO). 2 mi SW of Puerto Armuelles, Croat 22454 (MO). COCLE: El Valle, Allen 114 (F, MO), 2910, 4223 (both MO); Hunter & Allen 302 (MO). COLON: Gatuncillo, Correa et al. 734 (MO). DARIEN: Rio Pirre, Bristan 56 (MO). Rio Aruza, Bristan 1346 (MO). Pidiaque, Duke 8041, 8042 (both MO). Rio Pirre, Duke 8249 (MO). Rio Sabana, ca. 4 m above Santa F6, Duke 10203 (MO). Between upper Rio Membrillo and Camp M on construction road to San Blas, Duke 10873 (MO). Manen6 near Cuasi, Kirkbride & Bristan 1482 (MO). La Palma, Pittier 6961 (F). PANAMA: Upper Rio Pequeni between Salamanca Hydrographic Station and Rio Boqueron, Allen 17276 (MO). Las Cumbres, Duke 11825 (MO). Isla Pedro Gonzales, Dwyer 1716 (MO). NW slope of Red Hill, San Jos6 Island, Johnston 1309, 1366 (both MO). Alhajuela, Pittier 2397 (F). VERAGUAS: Santa F6, Allen 4378 (MO). Santiago, Dwyer 1351 (MO). Isla de Coiba, Dwyer 2374 (MO).
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