Pavonia ducke-limae Monteiro (1972: 127)

Tavares, Aline Belém & Alves, Marccus, 2024, Synopsis of Pavonia Cav. (Malvaceae) in the state of Pernambuco, Brazil, Phytotaxa 645 (3), pp. 232-247 : 236-237

3. Pavonia ducke-limae Monteiro (1972: 127) ( Figures 2 , 5d–e, 6c–d).

Holotype:— BRAZIL. Pernambuco: São Lourenço da Mata, Aldeia, A. Ducke & D. Andrade-Lima 7 ( R barcode R-76224 ! [digital image], isotypes IPA barcode 2213! IAN barcode 75885)

Taxonomic notes: —Leaves are vary from orbicular (1.2‒9 × 1.4‒9 cm) with entire margin to ovate-lanceolate (24.4 × 13.6 cm) with dentate margin within the same individual. However, it can be identified in the field by its arborescent habit, pubescent branches and leaves, lanceolate stipules, and 9‒10, lanceolate, bracteolate epicalyx.

Distribution, habitat, and IUCN threat status: —Endemic to the northern portion of Atlantic Forest from the Brazilian Northeast (north of São Francisco River). The prior collections of P. ducke-limae indicated that this species occurred exclusively in the state of Pernambuco. However, two new records (indicated in additional material) prove their occurrence in Alagoas state. In Pernambuco is registered in five collections for three municipalities. Occurs in Mata Zone , subzone of Mata Úmida , inside the Área de Proteção Ambiental de Aldeia-Beberibe. This species presents an EOO of 3,097.778 km 2 and an AOO of 20.000 Km², resulting in the EN rating. However, in addition to presenting a restricted occurrence, this species is inserted within the coverage area of the Atlantic Forest, which corresponds to the most degraded phytogeographic domain of the Brazilian territory. Human occupation and the deforestation process contribute to the reduction of vegetation cover in this domain. With this constant reduction, species like P. ducke-limae may have their populations reduced and even extinct. The absence of recent collections may indicate that P. ducke-limae populations have suffered reductions, considering the processes related to the deforestation of this phytogeographic domain. Therefore, here is considered Critically Endangered (CR) following the IUCN (2022).

Phenology: —Collected with flowers in January, April, July, and October and with fruits in April and July.

Specimens examined: — BRAZIL. Pernambuco: Camaragibe , estrada d´Aldeia, 22 January 1953, H. Monteiro 3990 ( RBR). Recife, 16 April 1967, A. Krapovickas 12872 ( CTES; F; MBM; MO; NY). São Lourenço da Mata, Margem início da estrada de Aldeia, 08 October 1951, A. Ducke & D. Andrade-Lima 7 ( IPA; IAN; RBR), 24 July 1953, D. Andrade-Lima 50-621 ( IPA) ; 24 July 1950, A. M. Giulietti 621 ( IPA). São Lourenço da Mata, Aldeia , 7 October 1975, F. Serpa 112 ( HST; SPF) .

Additional material: — BRAZIL. Alagoas. Coruripe, Usina Guaxuma , WGS 84 10º07’30”S, 36º10’34”W, 4 March 2011, E.C.O. Chagas et al. 10236 ( MAC). Coruripe, Usina Guaxuma , WGS 84 10º12’56”S, 36º17’56”W, 2 July 2012, E.S. França 173 ( MAC) .

Figures

FIGURE 2. Distribution map of Pavonia in the Pernambuco state, Brazil. (+) P. ducke-limae, () P. martii, (■) P. paniculata, (★) P. varians.