Abstract
We describe a new section (Astragalus sect. Rupertii A.E. Estrada, Villarreal & A.Delgado) from Mexico, its particular morphological features are, stipules free; calyx suboblong–urceolate to subglobose–urceolate, with subulate to triangular subulate teeth of the same size than tube; ovules 4; and pod 6–8 mm long, concealed by the calyx. The new section includes two endemic species from the state of Coahuila, Astragalus rupertii & A. pomphocalyx.
References
Bagheri, A., Maassoumi, A.A., Rahiminejad, M.R. & Blattner, F.R. (2016) Molecular phylogeny and morphological analysis support a new species and new synonymy in Iranian Astragalus (Leguminosae). PLoS ONE 11 (3): e0149726. https://doi:10.1371/journal.pone.0149726
Bagheri, A., Maassoumi, A.A., Rahiminejad, M.R., Brassac, J. & Blattner, F.R. (2017) Molecular phylogeny and divergence times of Astragalus section Hymenostegis: An analysis of a rapidly diversifying species group in Fabaceae. Scientific Report 7: 14033. https://doi:10.1038/s41598-017-14614-3
Barneby, R.C. (1964) Atlas of North American Astragalus. Memoirs of the New York Botanical Garden 13: 1–1188.
Barneby, R.C. (1976) Dragma hippomanicum II. Astragali novi peninsulares Moraniani. Brittonia 28: 273–280. https://doi.org/10.2307/2805788
Estrada, E., Villarreal, J.A. & Yen, C.M. (2005) Astragalus mario-sousae (Fabaceae: Galegeae) a new species from northeastern Mexico. Brittonia 57 (4): 314–319. https://doi.org/10.1663/0007-196X(2005)057[0314:AMFGAN]2.0.CO;2
Estrada, C.E., González, E.S. & Villareal, Q.J.A. (2016) A new species of Astragalus (Fabaceae: Faboideae) from Durango, Mexico. Phytotaxa 288 (1): 91–95. https://doi.org/10.11646/phytotaxa.288.1.10
Estrada, E., Rebman, J.P. & Villarreal, J.A. (2019) Astragalus comonduensis and Calliandra pilocarpa (Fabaceae), two new species from Baja California Sur, Mexico. Phytotaxa 391 (1): 57–68. https://doi.org/10.11646/phytotaxa.391.1.4
Estrada, C.E., Villarreal, Q.J. & Encina, D.J. (2020) A new species and a new section of Astragalus (Fabaceae: Papilionoideae) from Mexico. Phytotaxa 428 (3): 163–172. https://doi.org/10.11646/phytotaxa.428.3.1
Gray, A. (1853) Plantae Wrightianae Texano-Neo-Mexicanae Part II. Smithsonian Contributions to Knowledge 5 (6): 1–119.
Gray, A. (1864) Revision and arrangement (mainly by the fruit) of the North American species of Astragalus and Oxytropis. Proceedings of the American Academy of Arts and Sciences 6: 188–236.
Gray, A. (1868) Characters of new plants of California and elsewhere, principally of those collected by H. N. Berlandier in the State Geological Survey. Proceedings of the American Academy of Arts and Sciences 7: 327–401. https://doi.org/10.2307/20179569
Gray, A. (1878) Contributions to the Botany of North America. Proceedings of the American Academy of Arts and Sciences 13: 361–374. https://doi.org/10.2307/25138500
James, L.E. (1951) Observations on the taxonomy of Astragalus, subgenus Hesprastraglaus. Contributions from the Duddley Herbarium 4: 57–72. P. XI.
Jones, M.E. (1923) Revision of North American species of Astragalus. Published by the author, Salt Lake City, Utah. 288 + 119 unnumbered.
Linnaeus, C. (1753) Species plantarum. Vol. 2. Impensis Laurentii Salvii, Holmiae, 639 pp.
Nuttall, T. (1848) Astragalus sect. Microlobium. Journal of the Academy of Natural Sciences of Philadelphia II, 1: 152.
Rzedowski, J. & Calderón de Rzedowski, G. (2015) Seis novedades de Leguminosae-Papilionoideae de México. Acta Botanica Mexicana 110: 1–19. https://doi.org/10.21829/abm110.2015.192
Sanderson, M.J. (1991) Phylogenetic relationships within North American Astragalus L. (Fabaceae). Systematic Botany 16 (3): 414–430. https://doi.org/10.2307/2419334
Sanderson, M.J. & Doyle, J.J. (1993) Phylogenetic Relationships in North American Astragalus (Fabaceae) based on chloroplast DNA restriction site variation. Systematic Botany 18 (3): 395–408. https://doi.org/10.2307/2419416
Schauer, S. (1847) Leguminosae Astragalus hypoleucus S. Schauer. Linnaea 20: 747.
Spellenberg, R., Van Devender, T.R. & Jenkins, P.D. (2014) Astragalus martinii (Fabaceae), a new species from Eastern Sonora and western Chihuahua, Mexico. Phytoneuron 66: 1–8.
Spellenberg, R.W. & Anderson, W.A. (2019) Astragalus pilosior (Fabaceae), a new species from the Sierra Madre Occidental in Chihuahua, Mexico. Journal of the Botanical Research Institute of Texas 13 (1): 131–140.
Villarreal, J.A. & Carranza, M.A. (1994) Two new species of Astragalus (Leguminosae) from northeastern Mexico. Brittonia 46 (4): 335–339. https://doi.org/10.1007/BF02819411
Thiers, B. (2021) [continuously updated] Index Herbariorum: A global directory of public herbaria and associated staff. New York Botanical Garden’s Virtual Herbarium. Available from: http://sweetgum.nybg.org/science/ih/ (accessed 21 June 2021)
Watson, S. (1882) Contributions to American Botany. 1 List of Plants from Southwestern Texas and Northern Mexico, collected chiefly by Dr. E. Palmer in 1879–1880 - I. Polypetalae. Proceedings of the American Academy of Arts and Sciences 17: 316–361. https://doi.org/10.2307/25138655
Zarre, S. & Azani, N. (2012) Perspectives in taxonomy and phylogeny of the genus Astragalus (Fabaceae): a review. Progress in Biological Sciences. [6 pp.]
Bagheri, A., Maassoumi, A.A., Rahiminejad, M.R., Brassac, J. & Blattner, F.R. (2017) Molecular phylogeny and divergence times of Astragalus section Hymenostegis: An analysis of a rapidly diversifying species group in Fabaceae. Scientific Report 7: 14033. https://doi:10.1038/s41598-017-14614-3
Barneby, R.C. (1964) Atlas of North American Astragalus. Memoirs of the New York Botanical Garden 13: 1–1188.
Barneby, R.C. (1976) Dragma hippomanicum II. Astragali novi peninsulares Moraniani. Brittonia 28: 273–280. https://doi.org/10.2307/2805788
Estrada, E., Villarreal, J.A. & Yen, C.M. (2005) Astragalus mario-sousae (Fabaceae: Galegeae) a new species from northeastern Mexico. Brittonia 57 (4): 314–319. https://doi.org/10.1663/0007-196X(2005)057[0314:AMFGAN]2.0.CO;2
Estrada, C.E., González, E.S. & Villareal, Q.J.A. (2016) A new species of Astragalus (Fabaceae: Faboideae) from Durango, Mexico. Phytotaxa 288 (1): 91–95. https://doi.org/10.11646/phytotaxa.288.1.10
Estrada, E., Rebman, J.P. & Villarreal, J.A. (2019) Astragalus comonduensis and Calliandra pilocarpa (Fabaceae), two new species from Baja California Sur, Mexico. Phytotaxa 391 (1): 57–68. https://doi.org/10.11646/phytotaxa.391.1.4
Estrada, C.E., Villarreal, Q.J. & Encina, D.J. (2020) A new species and a new section of Astragalus (Fabaceae: Papilionoideae) from Mexico. Phytotaxa 428 (3): 163–172. https://doi.org/10.11646/phytotaxa.428.3.1
Gray, A. (1853) Plantae Wrightianae Texano-Neo-Mexicanae Part II. Smithsonian Contributions to Knowledge 5 (6): 1–119.
Gray, A. (1864) Revision and arrangement (mainly by the fruit) of the North American species of Astragalus and Oxytropis. Proceedings of the American Academy of Arts and Sciences 6: 188–236.
Gray, A. (1868) Characters of new plants of California and elsewhere, principally of those collected by H. N. Berlandier in the State Geological Survey. Proceedings of the American Academy of Arts and Sciences 7: 327–401. https://doi.org/10.2307/20179569
Gray, A. (1878) Contributions to the Botany of North America. Proceedings of the American Academy of Arts and Sciences 13: 361–374. https://doi.org/10.2307/25138500
James, L.E. (1951) Observations on the taxonomy of Astragalus, subgenus Hesprastraglaus. Contributions from the Duddley Herbarium 4: 57–72. P. XI.
Jones, M.E. (1923) Revision of North American species of Astragalus. Published by the author, Salt Lake City, Utah. 288 + 119 unnumbered.
Linnaeus, C. (1753) Species plantarum. Vol. 2. Impensis Laurentii Salvii, Holmiae, 639 pp.
Nuttall, T. (1848) Astragalus sect. Microlobium. Journal of the Academy of Natural Sciences of Philadelphia II, 1: 152.
Rzedowski, J. & Calderón de Rzedowski, G. (2015) Seis novedades de Leguminosae-Papilionoideae de México. Acta Botanica Mexicana 110: 1–19. https://doi.org/10.21829/abm110.2015.192
Sanderson, M.J. (1991) Phylogenetic relationships within North American Astragalus L. (Fabaceae). Systematic Botany 16 (3): 414–430. https://doi.org/10.2307/2419334
Sanderson, M.J. & Doyle, J.J. (1993) Phylogenetic Relationships in North American Astragalus (Fabaceae) based on chloroplast DNA restriction site variation. Systematic Botany 18 (3): 395–408. https://doi.org/10.2307/2419416
Schauer, S. (1847) Leguminosae Astragalus hypoleucus S. Schauer. Linnaea 20: 747.
Spellenberg, R., Van Devender, T.R. & Jenkins, P.D. (2014) Astragalus martinii (Fabaceae), a new species from Eastern Sonora and western Chihuahua, Mexico. Phytoneuron 66: 1–8.
Spellenberg, R.W. & Anderson, W.A. (2019) Astragalus pilosior (Fabaceae), a new species from the Sierra Madre Occidental in Chihuahua, Mexico. Journal of the Botanical Research Institute of Texas 13 (1): 131–140.
Villarreal, J.A. & Carranza, M.A. (1994) Two new species of Astragalus (Leguminosae) from northeastern Mexico. Brittonia 46 (4): 335–339. https://doi.org/10.1007/BF02819411
Thiers, B. (2021) [continuously updated] Index Herbariorum: A global directory of public herbaria and associated staff. New York Botanical Garden’s Virtual Herbarium. Available from: http://sweetgum.nybg.org/science/ih/ (accessed 21 June 2021)
Watson, S. (1882) Contributions to American Botany. 1 List of Plants from Southwestern Texas and Northern Mexico, collected chiefly by Dr. E. Palmer in 1879–1880 - I. Polypetalae. Proceedings of the American Academy of Arts and Sciences 17: 316–361. https://doi.org/10.2307/25138655
Zarre, S. & Azani, N. (2012) Perspectives in taxonomy and phylogeny of the genus Astragalus (Fabaceae): a review. Progress in Biological Sciences. [6 pp.]