Pavonia blanchetiana Miquel (1850: 801)

Tavares, Aline Belém & Alves, Marccus, 2024, Synopsis of Pavonia Cav. (Malvaceae) in the state of Pernambuco, Brazil, Phytotaxa 645 (3), pp. 232-247 : 234-235

1. Pavonia blanchetiana Miquel (1850: 801) ( Figures 3 , 5i, 6h).

Lectotype (designated here):— BRAZIL. J.S. Blanchet 3662 ( U barcode 0046436 ! [digital image]; isolectotypes P barcode 02285710! [digital image], BM barcode 000583545! [digital image], P barcode 02285711! [digital image], P barcode 02285709! [digital image], K barcode 001057216! [digital image], G barcode 00353394! [digital image] and BR barcode 0000005175765! [digital image])

Nomenclatural notes: — Miquel (1850) cited the collection Blanchet 3662 as type but did not indicate the herbarium. Miquel worked in the herbarium of Utrecht (U) (Stafleu & Cowan 1981). The material collected by Blanchet was deposited in the herbarium G ( Stafleu & Cowan 1976). Fryxell (1999) indicated a sample deposited in BR as a holotype. However, this collection incorporates eight records (BM000583545, BR0000005175765, G00353394, K001057216, P02285711, P02285709, P02285710 and U0046436), that corresponded to syntypes ( Turland et al. 2018; Art. 10 of the ICN). Furthermore, a lectotypification it will just be effective when includes the terms “ lectotypus ” and “designated here” (Art. 9.23, Art. 7.11 of the ICN, Turland et al. 2018). Therefore, a lectotypification was necessary. The sample deposited in U was selected as lectotype, because it is deposited where Miquel worked and exhibits the diagnostic characters of the species.

Taxonomic notes: —The differential characteristics are observed in the trilobed leaves (central lobe 1.0‒5.8 × 0.5‒1.2 cm and lateral lobes 0.7‒3.4 × 0.3‒1.5 cm) and winged mericarps. Pavonia blanchetiana grows subshrub to shrub, and has pubescent branches and leaves, the epicalyx with 20‒26 filiform bracteoles. Herbarium specimens are often identified as P. cancellata , due to the filiform bracteoles however, P. blanchetiana can be distinguished by its trilobed leaves and pink flowers. Whereas, leaves are entire in P. cancellata and flowers are yellow.

Distribution, habitat, and IUCN threat status: —Endemic to Caatinga domain, registered in the states of Alagoas, Bahia, Pernambuco, and Sergipe (Flora e Funga do Brasil, 2020). In Pernambuco is registered in six municipalities ( Figure 3 ). The area of occurrence include the Caatinga Zone and subzones of Agreste, Sertão Central and enclaves of Mata Úmida. Occurs in the Parque Nacional Vale do Catimbau and Reserva Biológica Federal da Pedra Talhada. The geographic range of the species shows EOO of 175,411.530 km 2 and AOO of 220.000 km ². Considering the larger EOO, number of locations and as there is no present or plausible threat, P. blanchetiana is here considered Least Concern (LC).

Phenology: —Collected with flowers in April, June, July, and November and with fruits in March, June, and October.

Specimens examined: — BRAZIL. Pernambuco: Agrestina, Pedra Cabeça de Velho, 8º22’59”S, 36º00’00”W, 18 August 2008, P. Gomes et al. 509 ( JPB). Buíque , Estrada Buíque para Catimbau, 5 February 1997, G.S. Baracho 274 ( UFP). Caruaru , 23 November 1993, A.S. Luz s.n. ( HST 4722 ; MAC 18025 ). Garanhuns , Encosta do Monte Sinai , 8º53’26”S, 36º29’34”W, 11 April 1968, D. Andrade-Lima 68-5344 ( IPA; NY). Gravatá , Alto do morro do Cruzeiro , 24 June 1962, D. Andrade-Lima 62-4061 ( IPA; NY). Lagoa do Ouro , Reserva Biológica Federal da Pedra Talhada , 9º20’10”S, 36º41’17”W, 26 November 2014, L. Nusbaumer & A. Cailliau 4426 ( G, JPB; MAC; NY; UFP) .

Figures

FIGURE 3. Distribution map of Pavonia in the Pernambuco state, Brazil. (+) P. blanchetiana; (*) P. fruticosa; (♦) P. glazioviana; (★) P. repens; (●) P. sidifolia.