Scleria poeppigii

Schneider, Layla Jamylle Costa, Simões, André Olmos, Dias, Ana Cristina Andrade De Aguiar & Gil, André Dos Santos Bragança, 2023, Typifications in Scleria subgenus Scleria section Hymenolytrum (Cyperaceae), Phytotaxa 606 (3), pp. 170-184 : 171

Scleria poeppigii (Nees in C.F.P.von Martius 1842: 175) Steudel (1855:171)

≡ Hymenolytrum poeppigii Nees in C.F.P.von Martius (1842: 175).

Lectotype (designated here):— PERU. [Loreto]: [ Alto Amazonas ], “Maynas”, “Yurimaguas”, March 1831, fl., Poeppig 2354 ( G [00099876] photo!) ( Fig.2 ).

Nees (1842) described Hymenolytrum poeppigii in the Flora Brasiliensis as having winged sheaths, an obtuse contraligule, leaf-blades ca. 1 cm wide with scabrous margins, panicles pyramidal with patent branches, but that author included no details concerning fruits. The type locality of the species corresponds to the dense forests of Peru, in the provinces of “Huallaga” and “Maynas”, with a collection made by Poeppig as the testimony, without mentioning, however, a collection number or specifying the herbarium in which it was deposited. Nees (1842) also mentioned a locality for the taxon in Brazil (the Rio Solimıes ), but no voucher was written for it. The personal herbarium of Friedrich E. Poeppig was incorporated into the W herbarium, and duplicates were sent to several other European herbaria ( Stafleu & Cowan 1983). A specimen of Poeppig from Peru mentioning the locality of “Maynas” (numbered 2354), was found in the G herbarium (G00099876). That specimen has morphological characteristics compatible with the protologue description by Nees (1842). Additionally, there is a photograph of a negative in herbarium F (F 217934) of a specimen from collection W, with the same locality information and collection number; there is also another photograph of this negative in the MO herbarium (MO 300412). The curator of the W herbarium informed us that the specimen was destroyed during World War II. As the specimen ‘G00099876’ is the only collection found from the original Poeppig herbarium corresponding to the exact geographic location and morphological descriptions cited by Nees (1842), it was chosen as the lectotype of S. poeppigii .

Figures

FIGURE 2. Lectotype of Scleria poeppigii (Nees) Steud. (Poeppig 2354, G [00099876]). Image: ©Conservatoire et Jardin botaniques de la Ville de Genève (CJBG, Switzerland).