Aspidosperma subincanum Martius 1838
Creators: name: Castello, Ana Carolina Devides
name: Pereira, Andreza Stephanie De Souza
name: Shimizu, Gustavo Hiroaki
name: Zuntini, Alexandre Rizzo
name: Simões, André Olmos
name: Koch, Ingrid
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Gentianales
Apocynaceae
Aspidosperma
Aspidosperma subincanum

description: Aspidosperma subincanum Mart. in Flora 21(2, Beibl. 4): 82. 1838.
≡ Aspidosperma subincanum var. subincanum. ≡ Macaglia subincana (Mart.) Kuntze, Revis. Gen. Pl. 2: 416. 1891.
Lectotype (designated here): — BRAZIL. Mato Grosso: Cuiabá, Morro do Ernesto, Nov 1832, C.F.P. von Martius s.n. [Herb. Mart. Fl. Bras. No. 262] (M [barcode M-0183478 image!]; isolectotypes: BR [barcode 0000006959944 image!], E [barcode E00259703 image!], G [barcode G00143812 image!, barcode G00169306 image!], K [barcode K000587657 image!, barcode K000587659 image!], L [barcode L0931167 image!, barcode L0931168 image!], MO [barcode MO-2958634 image!], NY [barcode 00297997 image!], P [barcode P00639566 image!, barcode P00639567 image!], W [No. W0048486]). B†, F negative No. 7550 image!.
= Aspidosperma subincanum var. tomentosum Müll.Arg. in Mart. & auct. suc., Fl. Bras. 6(1): 50. 1860. Lectotype (designated by Woodson in Ann. Missouri Bot. Gard. 38(2): 150. 1951):— BRAZIL. Minas Gerais: 1840, P.C. D. Claussen s.n. (K [barcode K000587660 image!]).
= Aspidosperma chodatii Hassl. ex Markgr. in Pilg. in Notizbl. Bot. Gart. Berlin-Dahlem 8(76): 427. 1923. Lectotype (first-step lectotype designated by Woodson in Ann. Missouri Bot. Gard. 38(2): 148. 1951; second-step lectotype designated here):— PARAGUAY. [Amambay]: Sierra de Amambay, Montes Esperanza, Oct 1907 /1908, T. Rojas s.n. [E. Hassler [10647]] (G (mounted on three herbarium sheets) [barcode G00108781 image!]; isolectotypes: C [barcode C10005748 image!], G [barcode G00108780 image!, barcode G00108782 image!], MO [barcode MO-2958633 image!], NO [barcode NO0109662 image!], NY [barcode 00297954 image!], P [barcode P00639540 image!], RB [barcode 00535022!, [fragment] barcode 00535146!], S [No. S12-16249 image!, No. S12-16256 image!], SI [barcode 000744 image!], W [No. 1911-0000619 image!]).
Notes —We elected a specimen with flowers and fruit from the single gathering cited by Martius (1838) as the lectotype of A. subincanum (M barcode M-0183478). Also, among the six gatherings mentioned in the protologue of A. chodatii by Markgraf (1923), Woodson (1951) selected as the type the collection “Hassler [Rojas] 10647” (Rojas s.n.). However, since this gathering has more than one specimen, it was necessary to narrow Woodson’s (1951) typification by electing a specimen that belonged to Hassler’s personal herbarium as the second-step lectotype of A. chodatii (G barcode G00108781) (ICN article 9.17; Turland et al. 2018).
Woodson (1951) considered A. chodatii as a synonym of A. tomentosum Mart. & Zucc. However, A. chodatii presents branches with non-thickened suber (vs. thickened), petiolate (vs. sessile to subsessile) and non-decurrent (vs. decurrent) leaves, flowers with corolla lobes shorter than the tube (2×) (vs. equal to or 2× longer than), tomentose ovary (vs. glabrous), and pubescent to glabrescent follicles (vs. tomentose). Based on all these characteristics, we consider A. chodatii a synonym of A. subincanum.
Lasty, Duarte (1968) described A. heringeri Duarte as a species that shared some characteristics with A. subincanum. However, since we are still studying its description and types, we have not enough evidence to make decisions about their identities. Therefore, we treated A. heringeri as “ incertae sedis ”.
description: Published as part of Castello, Ana Carolina Devides, Pereira, Andreza Stephanie De Souza, Shimizu, Gustavo Hiroaki, Zuntini, Alexandre Rizzo, Simões, André Olmos & Koch, Ingrid, 2022, Taxonomy and nomenclature of Aspidosperma (Apocynaceae), pp. 239-277 in Phytotaxa 571 (3) on page 268, DOI: 10.11646/phytotaxa.571.3.1, http://zenodo.org/record/7284667