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The Cutting Edge
Volume XXIII, Number 1, January 2016
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CONVOLVULACEAE. Ipomoea clavata (G. Don.) Ooststr. ex J. F. Macbr. was long known from Costa Rica only by several collections made more than 80 years ago at Carrillos de Poás, on the Pacific versant of the Valle Central. Now it has been found again in the Valle Central, near Turrúcares, by Manual co-PI (and Convolvulaceae contributor) Barry Hammel, his wife Isabel Pérez, and current Manual illustrator José Alejandro Herrera Mora (no relation to Manual co-editor Cecilia Herrera Mora), during a weekend junket. These plants (Hammel et al. 27013), with bluish corollas, were cultivated (or perhaps allowed to survive), growing on a fence near a house—raising the possibility that the earlier collections from the Valle Central, which also had bluish corollas, might likewise have been from cultivation! Whatever the case, recent collections from the Península de Nicoya, with pinkish corollas, are clearly from a wild population, firmly establishing the natural occurrence of the sp. in Costa Rica (See Season's Pick, Volume XVI, Number 1, January 2009).
PASSIFLORACEAE. Flowers collected from the ground at Selva Bananito Lodge on 22 May, 2015, by Manual contributor Joaquín Sánchez (CR) have been identified by Manual Passiforaceae co-author Armando Estrada (CR) as Passiflora obovata Killip. The indicated site, located in the northern Cordillera de Talamanca, would represent the first Atlantic-slope station in Costa Rica for P. obovata, otherwise known only from the Cordilleras de Guanacaste and de Tilarán and the northern Fila Costeña. Joaquín will endeavor to obtain vegetative material during subsequent excursions.
RUBIACEAE. Psychotria guapilensis (Standl.) Hammel is a very distinctive sp., previously known in Costa Rica only from the Atlantic slope. Our new correspondent Andreas Berger (WU), occasional visitor in recent years to the Austrian research station at Fila Gamba in the Golfo Dulce region, has just informed us of his collection (Berger 1795, WU) extending the distribution of that sp. to the Pacific slope (southern Fila Costeña, at ca. 550 m elevation). We thank him for the information, and the use here of his fine and confirming photos.
SCROPHULARIACEAE. Scraping the bottom of the barrel barely in time for this issue, Manual co-PI Barry Hammel maintains his notoriety for finding new distributions in the trashiest of places by nailing another locality for scrappy little Lindernia rotundifolia (L.) Alston: Hammel et al. 27021, Atlantic slope of the Cordillera Central, Guápiles highway through Parque Nacional Braulio Carrillo, in disturbed ground at one of the numerous pullouts for large trucks and dumping spots for refuse from landslides (and worse sorts of trash). This sp. was previously known for sure in Costa Rica only from a similar spot on the Pacific slope of Cerro de La Muerte.