|
(Last Modified On 6/5/2013)
|
|
|
|
(Last Modified On 6/5/2013)
|
|
Species
|
Fleischmannia pratensis (Klatt) R. M. King & H. Robinson
|
|
PlaceOfPublication
|
Phytologia 19: 205. 1970.
|
|
Synonym
|
Eupatorium pratense Klatt, Bull. Soc. Roy. Bot. Belgique 31: 193. 18,92 (1893). TYPE: Costa Rica, savanes de Boruca, Pittier 4756 (US, lectotype). Eupatorium roseum Klatt, Bull. Soc. Roy. Bot. Belgique 31: 194. 1892 (1893). TYPE: Costa Rica, clairieres du Rodeo de Pacaca, Pittier 3324 (BR, GH). Eupatorium pacacanum Klatt, Leopoldina, Bot. Beibl. 3. 1895. TYPE: Costa Rica, Pittier 3324 (BR, GH).
|
|
Description
|
Erect to reclining perennial herb or subshrub to 1.5 m tall; stems greenish to brown or reddish, terete, finely striate, densely puberulous. Leaves mostly opposite, some upper leaves often alternate; blades papyraceous, rhomboidal to narrowly ovate, to 5.5 cm long and 3.5 cm wide, the base truncate to broadly cuneate, the margins usually bluntly serrate-crenate, the apex short-acute to short- acuminate, the upper surface coarsely to finely pilose, the lower surface sparsely to rather densely short-pilose, puberulous on veins, with glandular punctations, the veins prominently trinervate from base; petioles slender, to 3 cm long. Inflorescence a broad corymbose panicle with very densely corymbose branches, the heads in glomerate clusters, the ultimate branches 1-3 mm long, puberulous. Heads 4-5 mm high with 20-25 florets; involucral bracts ca. 20, subimbricate, unequal, in ca. 3 series, bicostate, with broad scarious margins, usually with prominent scattered puberulence on outer surface, the outer bracts with short- acute tips, the inner bracts with broad usually rounded more scarious tips; corolla lavender to white, ca. 2.5 mm long, often with short hairs on the outer surface of the lobes; style branches slender. Achenes slightly constricted above, black with black ribs when mature, usually scabrid or with short bristles primarily or exclu- sively on the ribs; pappus of ca. 25 closely scabrous often basally thickened and usually contiguous bristles.
|
|
Habit
|
herb or subshrub
|
|
Note
|
This species has been called F. pycnocephala (Less.) R. M. King & H. Robinson in Panama. The type of true F. pycnocephala proves to represent another species that is more common in Mexico, having yellowish ribs on the achenes, more slender noncontiguous pappus setae, corollas without hairs, leaves usually with more obscure glands or no glands, and generally thicker style branches.
|
|
Distribution
|
extending from central Mexico southward through Central America into northern South America.
|
|
Note
|
The type of Eupatorium pycnocephala Less. from Patlanta, Veracruz, collected by Schiede, is presumed destroyed at Berlin, but a duplicate from the herbarium at Halle (HAL) has been seen. Its most significant feature, the color of the achene, is that of the northern species and the name seems best retained for that entity. However, other characters of the type specimen show some features, such as a few short hairs on the corolla lobes and thicker pappus bristles, that are rare or lacking in other material of the species. The uniquely intermediate nature of the type may indicate hybridization and both species occur in the general area of the type locality. The type of Eupatorium pacacanum from Costa Rica is a variant of F. pratensis having minute, scarcely visible stipitate glands instead of prominent glandular punctations on the undersurface of the leaf and having less closely contiguous pappus bristles. Both characters seem to occur independently in a few other specimens of F. pratensis and the plants can be regarded as nothing more than a form.
|
|
Specimen
|
CHIRXQUI: Llanos del Volca'n, ca. 1300 m, Allen 1555 (F, MO, US). San Bartolo Limite, 20 km W of Puerto Armuelles, 400-600 m, Busey 529 (MO). Above Boquete past Princesa Janca coffee finca, D'Arcy & D'Arcy 6335 (MO). Between El Hato and Lagunas de Volca'n, D'Arcy & D'Arcy 6624 (MO). Bajo Chorro, Boquete, 6000 ft, Davidson 49 (F, MO, US), 138 (F). Burica Peninsula, 12 mi W of Puerto Armuelles, 400-500 m, Liesner 194 (MO). 0.5 mi N of El Hato del Volcan, McDaniel 10074 (FSU). Alto Boquete, Partch 69-51, 69-78 (both MO). El Boquete, 1000-1300 m, Pittier 2856 (US). Cerro Vaca, 900-1136 m, Pittier 5303 (US). Cerro Punta, 1500-2000 m, Seibert 254 (MO, US). Vic. of Callejon Seco, Volca'n de Chiriqui, 1700 m, Woodson & Schery 498 (MO). Vic. of Bajo Chorro, 1900 m, Woodson & Schery 639 (MO). Finca Lerida to Boquete, ca. 1300-1700 m, Woodson et al. 1137 (MO). COCLE: Club Campestre, ca. 700 m, Duke 13267 (MO, US). Cerro Pilon near El Valle, 700-900 m, Duke 12094 (MO). Ridge S of El Valle, ca. 600' m, Gentry 6810 (MO). El Valle, Miller 1829 (US). HERRERA: Vic. of Las Minas, La Pefia, Stern et al. 1770 (MO, US). LOS SANTOS: 17.8 mi S -of Macaracas, 1100( ft, Lewis 1604 (MO). Between Tonosi and Guanico, Stern et al. 1878 (MO, US). 12 mi S of Macaracas, Tyson et al. 3071 (MO). PANAMA: Alto Llano, 4400 ft, Maurice 872 (US). Cerro Azul, Croat 13024 (MO). Cerro Jefe, D'Arcy 3976 (MO). Finca del Indio, Cerro Jefe, D'Arcy 5221 (MO). Goofy Lake, Dwyer 4142 (MO). Cerro Jefe, ca. 1000 m, Gentry 6765 (MO). Cerro Jefe, 2700 ft, Tyson 3371 (MO).
|
|
Tag
|
|
|
|
Project Name
|
|
Tag
|
|
|
|