Two new species and one subspecies of Mesoamerican Dichaea Lindley with caducous leaves are described and illustrated. Dichaea dressleri Folsom, a new species with narrow, glaucous 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.
You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither BioOne nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the BioOne website.
Vol. 16 • No. 3