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The Cutting Edge
Volume XXVI, Number 1, January, 2019
News and Notes | Leaps and Bounds
| Germane Literature | Season's Pick | Annotate your copy
MELASTOMATACEAE. Armando Estrada (CR), involved with some institutional project relating to Isla del Coco, discovered that the name Clidemia fenestrata Benth., the type of which is from that island, appears nowhere in the Manual Melastomataceae treatment (2007). Investigating further, we found C. fenestrata listed in Standley's Flora of Costa Rica (1938) as a synonym of Clidemia pustulata DC. (which is surely why the former name was omitted from the Manual). Now, "C. pustulata sensu Fl. CR" appears in the Manual in synonymy under Clidema urceolata DC., which makes little sense because Standley stated that C. pustulata was "known in Costa Rica only from Cocos Island"—a locality not specified for C. urceolata in the Manual! All parties are now agreed that the solution for the Manual must be as follows: move "C. pustulata sensu Fl. CR" from the synonymy of Clidemia urceolata to that of C. strigillosa (Sw.) DC., and insert "C. fenestrata Benth." there as well. Are we all on board? For more recent insights on the nomenclature of this group, see under "Judd," in "Germane Literature."
SABIACEAE. Maybe this one should be filed under "un-annotate your copy"! In our last issue, in this very column, we reported the first two records of Meliosma allenii Standl. & L. O. Williams from the Atlantic slope of Costa Rica. One of those was a recent sterile collection (of which we appended a pair of photos) from the Llanura de San Carlos, the other an older fruiting collection (Aguilar & Schmidt 1053) from the eastern Cordillera de Talamanca that had apparently fallen through the cracks. But now, it seems that both of those records have been debunked. Immediately upon viewing the photos of the recent collection, Manual co-PI Nelson Zamora (whom we ought to have involved at the outset) recognized the plant depicted as Sloanea laevigata Dam. A. Sm. (Elaeocarpaceae), noting especially the double pulvinus (clearly visible) that characterizes the leaves of Sloanea spp. (vs. a single, basal pulvinus in Meliosma). Subsequently, Manual collaborator Daniel Santamaría pointed out that the older collection had been cited by Manual Sabiaceae author Francisco Morales (2013; Phytoneuron 2013-82: 43) under Meliosma glabrata (Liebm.) Urb.! So what we have here is a big false alarm, and Meliosma allenii retreating somewhat sheepishly to the Pacific slope.
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