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Manual de Plantas de Costa Rica

Main | Family List (MO) | Family List (INBio) | Cutting Edge
Draft Treatments | Guidelines | Checklist | Citing | Editors

The Cutting Edge

Volume XXIX, Number 3, July 2022

News and Notes | Leaps and Bounds | Germane Literature | Season's Pick | Global Range Extensions

ANNONACEAE. While editing the Manual, we were real sticklers for voucher citations. Numerous spp. (especially of Orchidaceae) were expunged from submitted manuscripts because their occurrence in Costa Rica was merely assumed or postulated; when pressed, the authors were unable to cite actual vouchers. A somewhat extreme case was that of Guatteria alata Maas & Setten, an ostensible Panamanian endemic that had been reported from a disjunct site in northeastern Costa Rica. In fact, a voucher for the Costa Rican occurrence actually had been prepared, and by none other than Manual co-PI Nelson Zamora, a co-author of the Manual Annonaceae treatment. As if that were not enough, Nelson’s voucher was seen, and its identity confirmed, by at least one other Manual co-PI. But alas, the specimen in question was destroyed in a plant-dryer fire before it could be properly labeled and mounted. Even so, we’d have gladly acquiesced to formal Manual treatment for G. alata, if only the voucher could have beeen cited; after all, we included several spp. of Orchidaceae on the sole basis of a single, destroyed Costa Rican specimen (generally a type). The problem for Guatteria alata was that, for whatever reason, Nelson had not gotten around to assigning a collection number to his specimen prior to the conflagration, so there was nothing to cite. The report was mentioned in the Manual, in the genus discussion of Guatteria, but G. alata was omitted from the sp. key and sp. accounts. But now we have come full circle on this: after 31 years, Nelson returned to the site of his original discovery—perhaps even to the same tree—and recollected Guatteria alata in Costa Rica! Just in case something unpredictable again transpires, we promptly updated the Manual online treatment of Guatteria to include this (in our usual manner) as one of several "Especies recién descritas o registradas de Costa Rica," there providing all the information we presently have about the distribution and phenology of the sp. and, for all posterity, the collection number (and photos): Zamora et al. 10938. Six duplicates were prepared, which we hope will be distributed widely and as soon as possible!

ASTERACEAE. During the preparation of the Manual Asteraceae treatment, Westoniella lanuginosa Cuatrec. was not known to have been collected in Costa Rica, and was therefore ignored by family contributor Alexánder Rodríguez (CR). However, the type locality (and that of one other collection) was so near the Costa Rican border, in westernmost Prov. Chiriquí, Panama, that the sp. merited inclusion based on our “propinquity” clause. We realized that too late in the game, and when we made Alexánder aware of the situation, he obviated the problem by citing W. lanuginosa questioningly as a synonym of W. kohkemperi Cuatrec. (a notion that he half-believed anyway). Now, however, a bonafide Costa Rican collection of Westoniella lanuginosa has suddenly come to light: Davidse et al. 26043 (MO), from 3350–3550 elevation on the Atlantic slope of the eastern Cordillera de Talamanca. The specimen was determined in 1984 by the late José Cuatrecasas (US), who monographed Westoniella and described the genus and all but one of its six spp. Where this specimen has been hiding for all of these years is anyone’s guess. Whether or not Alexánder or other synantherologists decide to accept W. lanuginosa as a distinct sp. is out of our hands, but if they do, they will have an authoritatively determined Costa Rican voucher at their disposal. Furthermore, Costa Rica will be able to claim all six spp. of Westoniella!

MALPIGHIACEAE. We have just discovered, quite by chance, that the Manual voucher for “Mascagnia sp. 1” (along with another specimen from the same site) was recently determined as M. macradena (DC.) Nied. by Amy Pool (MO), who has been working for quite some time now on the Flora mesoamericana treatment of Malpighiaceae.  Previously, Mascagnia macradena was known only from Colombia and Venezuela.  Get to annotating!

 

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