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The Cutting Edge
Volume XI, Number 4, October 2004
News and Notes | Recent Treatments |
Leaps and Bounds | Germane Literature |
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BORAGINACEAE. Cordia globosa (Jacq.) Kunth, comprising shrubby plants
with white flowers, can now be reported formally from Costa Rica for the first time,
based on several determinations made in 2000 by specialist James S.
Miller (MO). The Costa Rican material, hailing from several sites in the
Guanacaste region and the Península de Nicoya, had been confused with the
much more common Cordia guanacastensis Standl.
EUPHORBIACEAE. Resident botanist (and Euphorbiaceae specialist) José
González communicates the following new records for the
Estación Biológica La Selva: Phyllanthus stipulatus (Raf.) G.
L. Webster, which had been found as close as the Llanura de Santa Clara; and
Tragia bailloniana Müll. Arg., previously known from both lower down
(Llanura de Tortuguero) and higher up the mountain (Virgen del Socorro).
Tragia also constitutes a new generic record for the site.
MALVACEAE. The recent flurry of activity in Malvaceae continues with Manual
Malvaceae contributor Paul Fryxell’s recent redetermination
of a Francisco Morales collection as Hochreutinera
amplexifolia (DC.) Fryxell, otherwise recorded from central Mexico to Honduras
(and maybe Panama). Chico’s #5034 was gathered in the Valle Central,
where it grew in a ruderal situation at 850–900 m elevation near Puente de
Mulas, spanning the Río Virilla near San Antonio de Belén. We had
misidentified this collection as Abutilon divaricatum Turcz., from which
H. amplexifolia differs at the generic level by a decidedly difficult-to-see
constriction of the mericarps below the bottom seed, but more practically (at the sp.
level) by its amplexicaul upper leaves, broader calyx lobes, and wonderfully pustulate
(vs. smooth) seeds. A second country record hails from that mother lode of new Malvaceae
records, Parque Nacional Palo Verde, where it was registered (as usual) by park
administrator (and last surviving plant parataxonomist) Ulises
Chavarría. His #2237 represents Sida abutifolia
Mill. (previously known from Mexico, Guatemala, Ecuador, Peru, and the West Indies),
according to the determination made originally via a scanned image sent to Fryxell
and later reaffirmed by Manual co-PI Barry Hammel on his recent
visit to MO. And finally, a correction: turns out we jumped to a conclusion regarding
U. Chavarría 2107, which we had identified as Hibiscus
trilobus Aubl. (see this column in our last issue). According to Hibiscus
expert O. J. Blanchard, Jr. (with whom Fryxell put us in contact),
Ulises’s collection instead corresponds to H. striatus Cav.—still
a new record for Costa Rica, otherwise known from Texas, Mexico, Honduras, Bolivia,
Paraguay, and the West Indies.
ONAGRACEAE. Ludwigia affinis (DC.) H. Hara, a widespread, ± weedy
herb well known throughout the Atlantic coastal plain of Costa Rica, had somehow never
been detected at the Estación Biológica La Selva. The sharp eyes of new
La Selva resident (and Manual Onagraceae contributor) José
González have now filled that lacuna.