Crotalaria holosericea Nees & Martius, 1824

Flores, Andréia Silva, Rockinger, Alexander, Rodrigues, Rodrigo Schütz & Tozzi, Ana Maria Goulart De Azevedo, 2016, Lectotypifications and taxonomic changes in Brazilian Crotalaria L. (Leguminosae), Phytotaxa 267 (4), pp. 296-300 : 297

Crotalaria holosericea Nees & Martius in Wied-Neuwied et al. (1824: 26).

Lectotype (designated here):— BRAZIL. “Circa Barra da Vareda ”, s.d., M. Wied-Neuwied s.n. ( BR6584061 !; isolectotype BR8423450 !) . Lectotype image: http://www.br.fgov.be/RESEARCH/COLLECTIONS/HERBARIUM/detail.php? ID =440743 .

Crotalaria holosericea var. grisea Bentham (1859: 30) .

Lectotype (designated here):— BRAZIL. “In prov. Piauhiensis campis prope Oeiras et alibi”, s.d., C. F. P Martius s.n. ( M0187170 !) . Lectotype image: http://plants.jstor.org/stable/10.5555/al.ap.specimen.m0187170.

In the protologue of Crotalaria holosericea, Nees & Martius (1824: 26) cited material from the locations “ Circa Barra da Vareda ” and “ in campis Provinciae Piauhiensis ”. No material from the latter location could be found, but the locality stated on the identification label of the Wied-Neuwied syntype in the BR herbarium (BR6584061) “ Barra da Vareda , in prov. Min. confin. orient. ” agrees with the original description. In accordance with Windler’s assignment, we designate it here as lectotype.

Bentham (1859) defined Crotalaria holosericea var. grisea as an intermediate form between C. clausseni and C. holosericea . The description was based on the following syntypes: Brazil, “ in prov. Piauhiensis campis prope Oeiras et alibi: M. ” (collected by Martius), and “ circa Oeiras frequens et ad rivulum prope Boa Esperanza: Gardner 2104 et 2105 ”. In agreement with Windler’s assignment, we designate the collection of Martius as lectotype since it displays most completely the defining morphological characters.