Acroceras fluminense ( Hackel 1901: 457 ) Zuloaga & Morrone (1988: 197)

Reis, Priscila Alves Dos, Dórea, Marcos Da Costa & Oliveira, Reyjane Patricia De, 2016, Lectotypification of Panicum fluminense and Panicum pseudoryzoides, two names related to Acroceras (Poaceae, Paniceae), Phytotaxa 263 (1), pp. 63-67 : 63-65

1. Acroceras fluminense ( Hackel 1901: 457) Zuloaga & Morrone (1988: 197) ( Fig. 1 )

Basionym: Panicum fluminense Hackel (1901: 457) .

Lectotype:— BRAZIL. Rio de Janeiro: Rio de Janeiro, 1883, Glaziou 14397 W-1916-0019572!, here designated. Isolectotypes: BAA-00002402! (fragment ex P), BAA-00002332! (fragment and illustration ex US), G-00099627!, K-000979164!, P-00740870!, P-00740871!, P-00740872!,US-80870! (fragment ex W), US-1127279! (fragment ex P), US-1445786! (fragment ex P).

We designate as lectotype for the name Panicum fluminense the sheet housed at W (W-1916 - 0019572, Rainer 2015), because Hackel worked in this herbarium and there is information on the label of that specimen in his own handwriting. We found three other duplicates of this collection (isolectotypes) at P (P-00740870, P-00740871, P-00740872). Another isolectotype was found at G (G-00099627), which was previously assigned as “type” by Agnes Chase on the sheet ; this specimen has not previously been cited in the literature.

Three fragments of the type collection at US, as cited by Zuloaga & Morrone (2003), are isolectotypes: US-1127279 (barcode 00148501) and US-1445786 (barcode 00148503), both obtained from P, and US-80870 (barcode 00148502) obtained from W. A sheet housed at BAA includes fragments from P (BAA-00002402), which was cited by Zuloaga et al. (1988), and W (BAA-00002332). These fragments are also isolectotypes. The specimen BAA-00002332 also includes a nondiagnostic illustration based on a fragment from W housed at US (probably from the sheet US-80870).

Figures

FIGURE 1. Lectotype of Panicum fluminense Hack., the basionym of Acroceras fluminense (Hack.) Zuloaga & Morrone (Glaziou 14397, W-1916-0019572). (Reproduced with permission of the Board of Trustees of the Naturhistorisches Museum Wien, W).