taxonID	type	description	language	source
8FD291C477A75B3393AB4C7C9A6E0DE2.taxon	materials_examined	Type. Mexico. Oaxaca: Tlaxiaco, Rio Ocotepec, en el arroyo Yute kuini (San Juan del Rio Cuquila), carretera Tlaxiaco-Putla, 17 ° 10 ' 26.48 " N, 97 ° 46 ' 17.29 " W [17.174022 ° N, - 97.771469 ° W], 1962 m a. s. l., 30 Mar 2021, M. G. Maldonado, L. G. Galvan G. & R. Cerros T. 21 (♀ fl, fr) (holotype: HUMO- 39855!, isotypes: MEXU!, UAMIZ!).	en	Maldonado-Borja, Maria Guadalupe, Cerros-Tlatilpa, Rosa, Galvan-Gonzalez, Luis Gil (2023): A new species of Struthanthus Mart. (Loranthaceae) from Oaxaca, Mexico. PhytoKeys 225: 69-81, DOI: http://dx.doi.org/10.3897/phytokeys.225.101238, URL: http://dx.doi.org/10.3897/phytokeys.225.101238
8FD291C477A75B3393AB4C7C9A6E0DE2.taxon	diagnosis	Diagnosis. Struthanthus ibe-dzi morphologically resembles S. deppeanus and S. quercicola in having epicortical roots on stems, similar leaf shapes, and inflorescences in racemes. However, the new taxon differs by its compressed nodes, stems, leaves, and inflorescence glaucous; leaf blade with base cuneate to oblique; staminate flowers 6 - 9 mm long with asymmetrical thecae and an extended horn-shaped apiculate connective in both anther series; and pistillate flowers with distally convoluted styles.	en	Maldonado-Borja, Maria Guadalupe, Cerros-Tlatilpa, Rosa, Galvan-Gonzalez, Luis Gil (2023): A new species of Struthanthus Mart. (Loranthaceae) from Oaxaca, Mexico. PhytoKeys 225: 69-81, DOI: http://dx.doi.org/10.3897/phytokeys.225.101238, URL: http://dx.doi.org/10.3897/phytokeys.225.101238
8FD291C477A75B3393AB4C7C9A6E0DE2.taxon	description	Description. Aerial hemiparasitic woody shrub, pendulous, perennial, with epicortical roots present at the base of main trunk; branches pendant. Stems green when young, brown with lenticels when mature; nodes glaucous, bicarinate and compressed, especially when young; internodes terete, with epicortical roots. Leaves opposite or subopposite; petioles 0.25 - 1.2 cm long, twisted, forming a shallow channel from the raised edge of leaf blade; blades ovate to lanceolate, rarely elliptical, 5.0 - 12.2 x 1.4 - 5.0 cm, papyraceous when dried; apex acute to acuminate, base cuneate to oblique, margin entire to repand, hyaline, venation pinnate. Inflorescences a solitary raceme of triads, indeterminate and axillar; bracts and bracteoles caducous at or after anthesis, cymbiform; rachis subterete to compressed, nodes compressed, triads opposite or subopposite, decussate, green, glabrous, glaucous. Staminate inflorescence 2.0 - 6.8 cm long, peduncle 0.2 - 0.8 cm with 6 - 16 (19) triads, triad peduncle 0.10 - 0.58 cm long. Pistillate inflorescence 2.0 - 5.0 cm long, peduncle 0.2 - 1.0 cm long with 6 - 12 (15) triads, triad peduncle 0.18 - 0.86 cm long. Staminate flowers hexamerous, rarely pentamerous, flower buds clavate with rounded apex; central flower of triad sessile, lateral pedicels 0.28 - 1.3 mm long; mature flowers 6.0 - 9.0 x 2.0 - 2.3 mm, petals linear, reflexed near the apex, 4.4 - 7.9 x 0.8 - 1.2 mm, anthers basifixed (not versatile) in two series, theca asymmetrical; prominent connectival apiculate horn in both the lower and upper series; calyculus irregularly dentate, whitish, vestigial ovary 1.5 - 2.2 mm; pistiloid straight to sigmoid 1 / 3 near the apex, 2.8 - 6.5 mm long, stigma undifferenced; nectary thick with six protuberances surrounding the pistiloid base. Pistillate flowers hexamerous, flower buds cylindrical, rounded at the apex; central flower of the triad sessile, pedicels of lateral flowers 0.18 - 0.8 cm long, slightly accrescent when bearing fruit; mature flowers 5.8 - 7.2 x 1.6 - 2.2 mm, linear petals 5.2 - 5.6 x 0.8 - 1.0 mm, staminodes in one series; calyculus whitish, irregularly dentate, inferior ovary 1.7 - 2.0 mm; style convolute 4.0 - 5.2 mm long (+ / - 3 longitudinal folds) from the middle to the apex, stigma capitate; nectary thick with six protuberances surrounding the style. Fruit a one-seeded berry, ovoid, 3.85 - 6.0 x 6.52 - 8.60 mm. Seeds ovoid, 3.0 - 4.7 x 5.1 - 7.4 mm. Figs 1, 2.	en	Maldonado-Borja, Maria Guadalupe, Cerros-Tlatilpa, Rosa, Galvan-Gonzalez, Luis Gil (2023): A new species of Struthanthus Mart. (Loranthaceae) from Oaxaca, Mexico. PhytoKeys 225: 69-81, DOI: http://dx.doi.org/10.3897/phytokeys.225.101238, URL: http://dx.doi.org/10.3897/phytokeys.225.101238
8FD291C477A75B3393AB4C7C9A6E0DE2.taxon	materials_examined	Additional specimens examined (Paratypes). Mexico. Oaxaca: San Juan Mixtepec, Yucu Shuun (Monte de Tesoro) a 16 km S de San Juan Mixtepec, 17 ° 13 ' 37.46 " N, 97 ° 47 ' 54.5 " W [17.22707 ° N, - 97.78484 ° W], 2,500 m a. s. l., 8 Nov 1988 (♀ fr), J. Reyes S. 1064 (MEXU, UC / JEPS); Putla Villa de Guerrero, 2.1 km despues de Santo Domingo Chicahuaxtla, hacia Putla, [17.142761 ° N, - 97.848589 ° W], 2,050 m a. s. l., 5 Feb 1993 (♀ fr), M. Chazaro B. 7088 (CHAPA, ENCB, MEXU, XAL); Santiago Juxtlahuaca, El Manzanal, senda para la parcela del Sr. Hemeterio, entrada por Santa Rosa-San Miguel Cuevas, Distrito Juxtlahuaca, 17 ° 13 ' 13.20 " N, 98 ° 3 ' 38.30 " W [17.22033 ° N, - 98.06063 ° W], 2,060 m a. s. l., 13 Sep 1996 (♀ fl, fr), J. I. Calzada 21381 (MEXU); San Juan Mixtepec, Camino a Santos Reyes Tepejillo, 1 km antes de la desviacion al Capulin y Tinuama de Zaragoza, 17 ° 19 ' 23.4 " N, 97 ° 54 ' 13.2 " W [17.32317 ° N, - 97.90367 ° W], 2,650 m a. s. l., 9 Apr 2019 (♂ fl), L. G. Galvan G. & R. Cerros T. 474 (HUMO); Putla Villa de Guerrero, orilla de la carretera, km 92, 2.8 km antes de San Andres Chicahuaxtla, 17 ° 10 ' 48.20 " N, 97 ° 49 ' 32.48 " W [17.18014 ° N, - 97.82569 ° W], 2,363 m a. s. l., 13 Feb 2020 (♀ fr), M. G. Maldonado, R. Cerros T. & L. G. Galvan G. 13 (HUMO); ibid, 13 Feb 2020 (♀ fr), M. G. Maldonado, R. Cerros T. & L. G. Galvan G. 14 (HUMO); Tlaxiaco, Rio Ocotepec, en el arroyo Yute kuini (San Juan del Rio Cuquila), carretera Tlaxiaco-Putla, 17 ° 10 ' 26.48 " N, 97 ° 46 ' 17.29 " W [17.17402 ° N, - 97.77146 ° W], 1,962 m a. s. l., 30 Apr. 2021 (♂ fl), M. G. Maldonado, R. Cerros T. & L. G. Galvan G. 19 (HUMO); ibid, 30 Apr 2021 (♀ fl), M. G. Maldonado, R. Cerros T. & L. G. Galvan G. 20 (HUMO); ibid, 30 Apr 2021 (♀ fl), M. G. Maldonado, R. Cerros T. & L. G. Galvan G. 22 (HUMO); ibid, 30 Apr 2021 (♀ fl), M. G. Maldonado, R. Cerros T. & L. G. Galvan G. 23 (HUMO); Putla Villa de Guerrero, km 92, carretera Tlaxiaco-Putla, 200 m antes de La Canada Tejocote, 17 ° 10 ' 48.38 " N, 97 ° 46 ' 31.94 " W [17.18010 ° N, - 97.82554 ° W], 2,374 m a. s. l., 30 Apr 2021 (♂ fl), M. G. Maldonado, R. Cerros T. & L. G. Galvan G. 24 (HUMO); ibid, 30 Apr 2021 (♀ fl), M. G. Maldonado, R. Cerros T. & L. G. Galvan G. 25 (HUMO); ibid, 30 Apr 2021 (♂ fl), M. G. Maldonado, R. Cerros T. & L. G. Galvan G. 26 (HUMO); Putla Villa de Guerrero, Orilla de carretera de Tlaxiaco-Putla, en San Andres Chicahuaxtla, 17 ° 09 ' 42.16 " N, 97 ° 50 ' 11.85 " W [17.16171 ° N, - 97.83662 ° W], 2,473 m a. s. l., 30 Apr 2021 (♂ fl), M. G. Maldonado, R. Cerros T. & L. G. Galvan G. 27 (HUMO).	en	Maldonado-Borja, Maria Guadalupe, Cerros-Tlatilpa, Rosa, Galvan-Gonzalez, Luis Gil (2023): A new species of Struthanthus Mart. (Loranthaceae) from Oaxaca, Mexico. PhytoKeys 225: 69-81, DOI: http://dx.doi.org/10.3897/phytokeys.225.101238, URL: http://dx.doi.org/10.3897/phytokeys.225.101238
8FD291C477A75B3393AB4C7C9A6E0DE2.taxon	distribution	Distribution, habitat, and hosts. Struthanthus ibe-dzi is endemic to Oaxaca, Mexico, where it is only known from cloud and oak-pine forests with secondary vegetation in the Sierra Madre del Sur (Morrone et al. 2017) in the municipalities of Putla Villa de Guerrero, San Juan Mixtepec, Santiago Juxtlahuaca, and Tlaxiaco (Fig. 3) at elevations between 1,962 to 2,650 m a. s. l. Recorded hosts to date include Alnus spp. (Betulaceae), Quercus spp. (Fagaceae), and Salix spp. (Salicaceae).	en	Maldonado-Borja, Maria Guadalupe, Cerros-Tlatilpa, Rosa, Galvan-Gonzalez, Luis Gil (2023): A new species of Struthanthus Mart. (Loranthaceae) from Oaxaca, Mexico. PhytoKeys 225: 69-81, DOI: http://dx.doi.org/10.3897/phytokeys.225.101238, URL: http://dx.doi.org/10.3897/phytokeys.225.101238
8FD291C477A75B3393AB4C7C9A6E0DE2.taxon	etymology	Etymology. The epithet ibe-dzi refers to the common name given to any mistletoe in Zapotec language (Ibe-dzi) in the San Juan Mixtepec region, which means " hair (s) on top of ", where " ibe " denotes " hair (s) " and " dzi " indicates " on top of ".	en	Maldonado-Borja, Maria Guadalupe, Cerros-Tlatilpa, Rosa, Galvan-Gonzalez, Luis Gil (2023): A new species of Struthanthus Mart. (Loranthaceae) from Oaxaca, Mexico. PhytoKeys 225: 69-81, DOI: http://dx.doi.org/10.3897/phytokeys.225.101238, URL: http://dx.doi.org/10.3897/phytokeys.225.101238
