Phaseolus tuerckheimii Donnell-Smith (1913:54)

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 : 98

Phaseolus tuerckheimii Donnell-Smith (1913:54) [clade A; sect. Brevilegumeni Freytag].

TYPE: H von Tuerckheim II-1536 ( LECTOTYPE: US-942247 ; ISOLECTOTYPES: BR, US-860832 , US-942248 ) . SYNTYPE: H Pittier 10539 ( US-942246 ) .

John Donnell Smith referred to two collections, the one by Hans von Türckheim (no. II-1536) and the one by Henri Pittier (no. 10539) in that order, without indicating the holotype. As there were several duplicates of no. II-1536 at the US National Herbarium, the selection of the voucher US-942247 by George Freytag as nomenclatural type seemed appropriate: it would have been impossible for JD Smith to write down a description of the floral parts of P.tuerckheimii without dissecting its flower! This species is a tall ( 6–10 m) vine growing in the moist montane forests of Central America at 1500–2600 m ( Araya-Villalobos et al. 2001) ( Fig. 3 ).

Specimens: MEXICO. Chiapas: U Bachem 398 ( CHAPA). GUATEMALA. Huehuetenango: LO Williams 22323 (F-1656438). El Quiché: AJ Sharp 45191 (MEXU-136531). Quezaltenango: DG Debouck 3085 ( AGUAT). Sololá: DG Debouck 3097 ( AGUAT). Chimaltenango: DG Debouck 1624 ( MICH-1180126 ). Sacatepéquez: M Véliz 14771 ( MO-5871374 ). Guatemala: DG Debouck 2473 ( US-3168469 ). Jalapa: JA Steyermark 32551 (F-1035022). El Progreso: DG Debouck 2418 (COL-324860). Zacapa: JA Steyermark 42471 (F-1202181). COSTA RICA. San José: JL Luteyn 4541 (DUKE-242717). PANAMA. Chiriquí: R Villareal 494 (PMA-108353).

Figures

FIG. 3.Close-ups of flowers of:a.P.albicarminus (DG Debouck 3242),b.P.angucianae (DG Debouck 3243), c.P.hygrophilus (DG Debouck 3172),d. P.oligospermus (DG Debouck 3333), and e.P.tuerckheimii (DG Debouck 2134).