Phaseolus marechalii A. Delgado (2000:427)

Debouck, D. G., 2021, Phaseolus Beans (Leguminosae: Phaseoleae): A Checklist And Notes On Their Taxonomy And Ecology, Journal of the Botanical Research Institute of Texas 15 (1), pp. 73-111 : 91

Phaseolus marechalii A. Delgado (2000:427) [clade B; sect. Paniculati Freytag].

TYPE: A Delgado-Salinas 115 ( HOLOTYPE: MEXU n.v. ; ISOTYPES: GH-423042 , K-651819 ).

Some differences with P. rotundatus and other related species have been presented elsewhere ( Salcedo-Castaño et al. 2009) (note the striped standard in Fig. 8 ). Its range is mainly along the Mexican Trans-Volcanic Belt, at 2400–2500 m, in oak, pine-oak and pine forest.

Specimens: MEXICO. México: DG Debouck 2377 (MICH-1179985). Morelos: OW Norvell HM215 (UC-933928). Puebla: DG Debouck 2389 (IBUG-182551).

Figures

FIG.8.Close-upsof flowersof somemembers of thePaniculati: a.P.jaliscanus(R BuhrowM21),b.P.lunatus(DGDebouck 2103),c.P.marechalii (B Schubert 623), d. P.nodosus (R Lépiz 148), e. P.rotundatus (R Lépiz 171) and f. P.salicifolius (R Buhrow M2).