01711nas a2200157   4500008004100000022001400041245006400055210006400119300001200183490000700195520124600202100002501448700002001473700002201493856003801515       2006                        eng d  a1055-317700aThree new Mesoamerican taxa of Dichaea with caducous leaves0 aThree new Mesoamerican taxa of Dichaea with caducous leaves  a336-3430 v163 aTwo new species and one subspecies of Mesoamerican Dichaea Lindley with eaducous leaves are described and illustrated. Dichaea dressleri Folsom, a new species with narrow, glauCOLIS leaves and resembling D. gracillima C. Schweinfurth, is described from wet forests in western Panama. Dichaea globosa Dressler & Pupulin, a new species described from Costa Rica and Panama, is a close ally of D. fragrantissima Folsom and of the widespread D. morrisii Fawcett & Rendle and may be distinguished by the fleshy, subtruncate lip with a broad claw and obovate petals. Dichaea fragrantissima, already described from Panama with a short diagnosis, is more fully described here. It is distinguished by the short, obtuse, lateral lobes of the lip, the subquadrate ligule and the narrow, subacuminate sepals and petals. Within D. fragrantissima, subsp. fragrantissima has prominent lilac lines on the sepals and petals and the lip is lilac, while subsp. eburnea Dressler & Pupulin, of Nicaragua, Costa Rica, and Panama, is distinguished by ivory flowers with greenish ivory apices and smaller lateral lobes of the lip. Some members of subsp. eburnea are autogamous. Dichaea morrisii, although ranging widely in South America, is uncommon in Mesoamerica.1 aDressler, Robert, L.1 aPupulin, Franco1 aFolsom, James, P.  u<Go to ISI>://WOS:000242049900010