Astragalus trichocarpus (Torr. & A. Gray) M.J. Young

Dorr, Laurence J., 2022, New Species And Combinations Published In M. J. Young’S Familiar Lessons In Botany With Flora Of Texas (1873), Journal of the Botanical Research Institute of Texas 16 (1), pp. 29-46 : 37

publication ID	https://doi.org/10.17348/jbrit.v16.i1.1218
DOI	https://doi.org/10.5281/zenodo.17136233
persistent identifier	https://treatment.plazi.org/id/CE698783-A441-B869-5E40-FC76E8C1FA51
treatment provided by	Felipe
scientific name	Astragalus trichocarpus (Torr. & A. Gray) M.J. Young
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Astragalus trichocarpus (Torr. & A. Gray) M.J. Young View in CoL , Familiar Lessons Bot. 228. 1873, non Graham ex Benth. in Royle, Ill. Bot. Himal. Mts. 199. 1835 [1839].

Astragalus nuttallianus var. trichocarpus Torr. & A. Gray, Fl. N. Amer.1(2):334.1838 (“β. trichocarpu s”).

TYPE: U.S.A. Texas. Sine loc .,s.d. [1834], T. Drummond I s.n. [ LECTOTYPE as “holotype” designated by Barneby (1964: 1067): NY00005570 as image !; ISOLECTOTYPE: BM [ BM001042704 as image!] [“Texas I”] ; POSSIBLE ISOLECTOTYPES: G, LAU, OXF, US [ US00004242 ] !].

Young (1873) recognized six species of Astragalus L., including “ A. trichocarpus, Gray and Torrey. ” She incorrectly ascribed authorship for what is, in fact, a new combination and change in status for A. nuttallianus var. trichocarpus Torr. & A. Gray (1838). Young’s ascription of authorship to “Gray and Torrey,” albeit the correct order of names reversed, provides an indirect reference ( Turland et al. 2018; Art. 41.3) to the basionym. Additionally, Young’s (1873) description is almost a verbatim copy of what Torrey and Gray (1838) published for A. nuttallianus s.l. However, Young (or Buckley) curiously managed to omit from her description the few characters used to distinguish A. nuttalianus var. trichocarpus from the nominate variety. The only collection cited for this taxon in either flora is “ Drummond .” A single, unnumbered Drummond collection (“Coll. I”) from Texas is in the Torrey Herbarium (NY) and was designated by Barneby (1964) as the lectotype of the basionym.