Banisteria adenopoda f. subrotunda Niedenzu (1900: 24)

Type:— BRAZIL. S „o Paulo, capital, Reserva Biológica do Parque Estadual das Fontes do Ipiranga, 10 April 1978, H. Makino 130. Neotype (designated here): ESA [ESA 87748, photo!]; isoneotypes: MBM [MBM275013, photo!], MO [MO3229504, photo!], NY [NY00776900, photo!], SP [SP151380, photo!], UFMT [UFMT6105, photo!]). Figure 2.

Notes:—Niedenzu described B. adenopoda f. subrotunda based on the collection of Mendonça 242 in Jacarahy (probably Jacareí), in the S „o Paulo state, Brazil. According to Stafleu & Cowan (1981), Niedenzu mainly studied the samples deposited in herbaria B and P. Gates (1982) cites the holotype of B. adenopoda f. subrotunda accompanied by the remark: holotype, B? destroyed. No sample of the potential source material has been found.

In the diagnosis B. adenopoda f. subrotunda, Niedenzu highlighted the bigger leaf size (ca. 10 × 8 cm) and shape “subrotundo” of the leaf in relation to the supposed type of B. adenopoda .

We analyzed all the specimens cited by Niedenzu (1900) to recognize the typical form of B. adenopoda f. adenopoda and noticed that all material bears elliptical leaf blades. Niedenzu did not analyze the original collection of B. adenopoda made by Saint Hilaire, which was also collected in S „o Paulo state. The B. adenopoda typical material has more rounded leaves than most available herbarium specimens. If there is any consensus on the occurrence of a form or variety of B. adenopoda based on leaf morphology, a name needs to be published, as the type also has subrotund leaves. We agree with Gates (1982) that B. adenopoda f. subrotunda does not merit recognition. Based on Niedenzu’s description, we chose a collection from S „o Paulo, which has five duplicates distributed among herbaria in North and South America, whose plants agree with the description.