The World Flora Online

COMPSONEURA (A. DC.) Warb.

Compsoneura sprucei (A. DC.) Warb., Nova Acta Acad. Caes. Leop.-Carol. German. Nat. Cur. 68: 143. 1897; Myristica sprucei A. DC.

Arbustos o árboles pequeños de hasta 10 m de alto. Hojas elíptico-oblongas, 10–34 cm de largo y 4–10 cm de ancho, ápice acuminado, base cuneada, membranáceas, glabras, la nervadura terciaria cercanamente paralela y perpendicular al nervio principal. Inflorescencias angostamente racemosas, flores blanquecinas, en fascículos; tépalos 1.5–3 mm de largo; anteras 4–8. Fruto elipsoide, 1.5–2.5 cm de largo y 1.3–2 cm de ancho; semilla casi completamente cubierta por un arilo rojo, delgado y más o menos laciniado sólo en el extremo del ápice.

Común pero raramente colectada en bosques perennifolios, Río San Juan; 70–250 m; fl may–sep, fr ene–mar; Moreno 23218, 26276; sur de México hasta la Amazonia. El género tiene 9 especies, 7 exclusivamente en Sudamérica y otra que llega hasta Costa Rica.

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Dioecious glabrous shrubs or trees, the sap often reddish. Leaves alternate, glabrous, char- taceous to coriaceous, petiolate, exstipulate, the tertiary veins parallel, conspicuously perpendicu- lar to the midrib. Flower fascicles in spikes, racemes or panicles, the axes glabrous, the bracts absent or inconspicuous. S t a m i n a t e flowers 3-25 per fascicle, the 3 (-5) tepals partially united; anthers 4-10, as long as or longer than the column. Pistillate flowers 1-8 per fascicle, the tepals partly connate, the 1-carpellate ovary with a subsessile 2-lobed stigma. Fruits fleshy, the thin pericarp dehiscing longitudinally into 2 valves; aril usually brightly colored and subentire; seed ellip- soid.

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Arbustos o árboles, las ramitas glabras. Hojas con la lámina ± cartácea, glabra. Infls. axilares o ramifloras, ± racemosas o angostamente paniculadas. Fls. fasciculadas, pediceladas; perianto 3(– 5)-lobulado; anteras 4 –10, separadas o dorsalmente connatas, oblongas; ovario subgloboso o elipsoide. Frs. elipsoides, ± lisos y glabros; semilla con el arilo rojo, entero.

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Dioecious shrubs or small trees, the branchlets subterete, glabrous; leaves glabrous, alternate, petiolate, the blades entire or slightly undulate and often narrowly recurved at margins, the costa raised above, prominent beneath, the secondary nerves several, irregularly anastomosing near margins, the tertiary nerves subparallel, nearly perpendicular to the costa, often conspicuous; inflorescences 1 or 2 in leaf axils or on defoliated branchlets, racemose, fasciculate- racemose, or narrowly paniculate; bracts subtending the fascicles or lateral branches small or none bracteoles none; flowers pedicellatel staminate perianth carnose or thin carnose, sometimes puberulent within , 3(rarely or 5) lobed; filaments connate in a carnose eolnmn; anthers 4-10, oblong, 2-celled, dehiscing by extrorse clefts, in the Section Eucompsoneura basifixed and free (rarely partially dorsally connate by inconspicuous connectives), often recurved, in the Section Coniostele dorsally adnate to a carnose truncate-obconical colnective mass, the anther cells separately adnate and often divergent; pistillate perianth usually slightly larger and more carnose than the staminate, the ovary subglobose or ellipsoid, the style short, the stigma peltate or 2-lobed; fruit ellipsoid, glabrous, 2-valved, smooth or obseurely carinate, pedicellate, the pedicel surmounted by the persistent perianth lobes, the pericarp very thin, the aril essentially entire or minutely laciniate at apex with a few short lobes, the seed ellipsoid, the testa conspicuously irregularly splotched with black or purple.

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shrubs or trees

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In this genus of 8 species, that which occurs in Panama essentially covers the entire range of the genus, from southern Mexico through Central America to Amazonian Peru and Brazil.

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Southern Mexico, Guatemala, and British Honduras southward to Amazonian Peru and Brazil, apparently lacking in Venezuela (except Amazonas), the Guianas, and coastal Brazil. C. Sprucei occupies essentially the entire range of the genus. Eight species are known. Although Warburg did not designate a type species, he mentioned C. Sprucei first, and since this is the oldest name in the genus it may well be designated as the type species.

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