taxonID	type	description	language	source
5D6087ABB37DFFD036F0DCBEFDD9F932.taxon	materials_examined	TYPE: — MÉXICO. Jalisco: municipio de San Cristóbal de la Barranca, camino que va de San Cristóbal de la Barranca a la Lobera, Mesa de los Caballos (21 ° 05 ′ 11.3 ″ N, 103 ° 29 ′ 01.7 ″ W), 1,584 m, April 1, 2020, R. Hernández-Cárdenas & S. Lara-Godínez 2429 (holotype UAMIZ!, isotypes IBUG!, MEXU!). Plants saxicolous, flowering 10 – 15 cm tall, 8 – 12 cm in diameter; rosettes shortly caulescent, spherical in outline, solitary or forming clumps of two or three rosettes. Leaves numerous, longer than the inflorescence; sheaths pale brown on both surfaces, oblong, 15 – 20 mm long, 7 – 8 mm wide, glabrous at the base on both surfaces; blades densely grey lepidote, narrowly triangular to linear, 50 – 70 mm long, 3.5 – 4.5 mm wide, recurved, of attenuate. Inflorescence subsessile, nested in the center of the rosette, ones-branched, with 2 – 5 spikes; peduncle inconspicuous, 5 – 10 mm long, 3 – 4 mm in diameter; peduncle bracts similar to the leaves, longer than the inflorescence but reducing in size distally, densely grey lepidote. Spikes green to reddish-rose at the apex, erect and appressed to the peduncle, dorsiventrally flattened, elliptic, 30 – 40 mm long, 10 – 15 mm wide, 2 – 4 flowered; floral bracts reddish-rose at the apex, yellowish- green towards the base, ovate when extended, 20 – 25 mm long, 8 – 10 mm wide, apex acute to acuminate, nerved, carinate, glabrous adaxially, lepidote abaxially. Flowers distichous, erect and appressed to the rachis; sepals reddishrose at the apex, yellowish-green towards the base, lanceolate, 15 – 20 mm long, 4 – 5 mm wide, apex acuminate, the two adaxial ones carinate, glabrous adaxially, scattered lepidote abaxially; petals white in its basal half, to dark green in its apical half, narrowly oblong, 20 – 25 mm long, 3 – 4 mm wide, apex rounded to obtuse; stamens all equal; filaments white, filiform, 15 – 17 mm long; anthers pale green, 3 – 4 mm long; ovary green, ovoid to ellipsoid, 4 – 5 mm long, 2.5 – 3.5 mm in diameter; style white, 7 – 11 mm long; stigma branches green. Capsules 25 – 30 mm long, 5 – 8 mm in diameter; seeds fusiform, 2 – 3.5 mm long; coma 1.5 – 2 cm long.	en	Hernández-Cárdenas, Rodrigo Alejandro, Espejo-Serna, Adolfo, Ferrari, Ana Rosa López- (2021): Two new species of Viridantha (Tillandsioideae; Bromeliaceae). Phytotaxa 520 (1): 97-105, DOI: 10.11646/phytotaxa.520.1.7, URL: http://dx.doi.org/10.11646/phytotaxa.520.1.7
5D6087ABB37DFFD036F0DCBEFDD9F932.taxon	distribution	Distribution and habitat: — Viridantha pachycaulis is only known from the municipality of San Cristóbal de la Barranca in Central Jalisco (Fig. 1), in the biogeographic province of Pacific Lowlands (according to Morrone et al. 2017), were it grows on vertical walls in the transition area of tropical deciduous forest to Quercus forest with species of Agave, Bursera, Fabaceae, and Quercus. There is a big plateau in this area called “ Mesa de los Caballos ”, on the side walls of this plateau V. pachycaulis is growing at elevations between 1,580 and 1,660 m. The new species blooms from March to April.	en	Hernández-Cárdenas, Rodrigo Alejandro, Espejo-Serna, Adolfo, Ferrari, Ana Rosa López- (2021): Two new species of Viridantha (Tillandsioideae; Bromeliaceae). Phytotaxa 520 (1): 97-105, DOI: 10.11646/phytotaxa.520.1.7, URL: http://dx.doi.org/10.11646/phytotaxa.520.1.7
5D6087ABB37DFFD036F0DCBEFDD9F932.taxon	etymology	Etymology: — The specific epithet refers to the thick stems of the new taxon (from the Greek: παχύς (pachys) = thick; καυλος (kaulos) = stem), which is why the rosettes look very robust. Paratypes: — MÉXICO. Jalisco: municipio de San Cristóbal de la Barranca, camino que va de San Cristóbal de la Barranca a la Lobera, Mesa de los Caballos (21 ° 05 ′ 11.3 ″ N 103 ° 29 ′ 01.7 ″) 1,584 m, April 1, 2020, R. Hernández- Cárdenas & S. Lara-Godínez 2456 (UAMIZ!). Observations: — Viridantha pachycaulis also has some similarities with V. atroviridipetala and V. grandispica. Nevertheless, V. pachycaulis differs from V. atroviridipetala in the height of the rosettes (10 – 15 vs. 5 – 10 cm), in the width of the leaf blades (3.5 – 4.5 vs. 2 – 3.5 mm), in the size (3 – 4 × 1 – 1.5 vs. 1.5 – 3 × 0.5 – 1 cm) and shape of the spikes (elliptic vs. narrowly elliptic), and in the shape of the floral bracts (ovate vs. lanceolate to narrowly triangular). Viridantha pachycaulis differs from V. grandispica in its habit (saxicolous vs. epiphytic), in the grow form (short caulescent vs. acaulescent), in the length of the petals (2 – 2.5 vs. 2.5 – 3 cm), and in the length of the capsules (2.5 – 3 vs. 4 – 5 cm), see also Table 1 and Figure 3.	en	Hernández-Cárdenas, Rodrigo Alejandro, Espejo-Serna, Adolfo, Ferrari, Ana Rosa López- (2021): Two new species of Viridantha (Tillandsioideae; Bromeliaceae). Phytotaxa 520 (1): 97-105, DOI: 10.11646/phytotaxa.520.1.7, URL: http://dx.doi.org/10.11646/phytotaxa.520.1.7
5D6087ABB37FFFD436F0DE14FEDFFBDB.taxon	materials_examined	TYPE: — MÉXICO. Querétaro: municipio de Peñamiller, 3.1 km al noreste de Adjuntas de Higueras, Cañón del Paraíso (21 ° 01 ′ 8.62 ″ N, 99 ° 42 ′ 3.25 ″ W), 1210 m, February 10, 2021, R. Hernández-Cárdenas & S. Lara-Godínez 2454 (holotype UAMIZ!). Plants saxicolous, flowering 10 – 13 cm tall, 15 – 20 cm in diameter; rosettes acaulescent, spherical in outline, solitary or forming clumps of two to four rosettes. Leaves numerous, longer than the inflorescence; sheaths cream coloured toward the base on both sides, square to transversely widely oblong, 10 – 14 mm long, 12 – 14 mm wide, densely grey lepidote, glabrous at the base on both surfaces; blades densely grey lepidote, linear triangular, 80 – 100 mm long, 8 – 10 mm wide, recurved, long attenuate. Inflorescence short pedunculate, nested in the center of the rosette, erect, onesbranched, with 2 – 3 spikes; peduncle conspicuous, 10 – 20 mm long, fully covered by bracts; peduncle bracts similar to the leaves, longer than the inflorescence but decreasing in size distally, densely grey lepidote. Spikes white-greenish, rose to at the apex, erect and appressed to the peduncle, dorsiventrally flattened, elliptic, 28 – 33 mm long, 17 – 20 mm wide, 2 – 4 flowered; floral bracts white greenish to rose, ovate when extended, 18 – 20 mm long, 8 – 10 mm wide, acute to acuminate, nerved, carinate, lepidote on both surfaces. Flowers distichous, erect and appressed to the rachis; sepals yellowish-green towards the base, pale rose at the apex, lanceolate, 12 – 15 mm long, 3 – 5 mm wide, acuminate, the two adaxial ones carinate, glabrous adaxially, scattered lepidote abaxially; petals white in its basal half, to dark green in its apical half, narrowly oblong, 16 – 17 mm long, ca. 2 mm wide, rounded to obtuse; stamens all equal; filaments white, filiform, 11 – 15 mm long; anthers black, 2.5 – 3 mm long; ovary green, ellipsoid, 3 – 5 mm long, 2 – 3 mm in diameter; style white, 10 – 15 mm long; stigma branches green. Capsules not seen.	en	Hernández-Cárdenas, Rodrigo Alejandro, Espejo-Serna, Adolfo, Ferrari, Ana Rosa López- (2021): Two new species of Viridantha (Tillandsioideae; Bromeliaceae). Phytotaxa 520 (1): 97-105, DOI: 10.11646/phytotaxa.520.1.7, URL: http://dx.doi.org/10.11646/phytotaxa.520.1.7
5D6087ABB37FFFD436F0DE14FEDFFBDB.taxon	distribution	Distribution and habitat: — Viridantha zamudioi is only known from the municipality of Peñamiller, northeastern Querétaro, in the Sierra Madre Oriental biogeographic province (according to Morrone et al. 2017), Figure 1. There is a big canyon in this area called “ Cañón del Paraíso ” where predominates the xerophilous scrub vegetation; V. zamudioi grows solitary or forming clumps of two to four rosettes on cliffs, with presence of Hechtia zamudioi Espejo, López-Ferrari et Ramírez (2008: 55), Tillandsia albida Mez (1916: 248), T. recurvata Linnaeus (1753: 287), and some species of Agave and Anacardiaceae species, at elevations between 1,210 and 1,300 m. Plants of V. zamudioi bloom in February.	en	Hernández-Cárdenas, Rodrigo Alejandro, Espejo-Serna, Adolfo, Ferrari, Ana Rosa López- (2021): Two new species of Viridantha (Tillandsioideae; Bromeliaceae). Phytotaxa 520 (1): 97-105, DOI: 10.11646/phytotaxa.520.1.7, URL: http://dx.doi.org/10.11646/phytotaxa.520.1.7
5D6087ABB37FFFD436F0DE14FEDFFBDB.taxon	etymology	Etymology: — The specific epithet honors Dr. Sergio Zamudio, botanical colleague and a very good friend, who has made important contributions to the knowledge of the vegetation of the state of Querétaro and for the project Flora of the Bajío and adjacent regions. Paratypes: — MÉXICO. Querétaro: municipio de Peñamiller, 3.1 km al noreste de Adjuntas de Higueras, Cañón del Paraíso (21 ° 01 ′ 8.62 ″ N, 99 ° 42 ′ 3.25 ″ W), 1,210 m, February 10, 2021, R. Hernández-Cárdenas & S. Lara-Godínez 2457 (UAMIZ!).	en	Hernández-Cárdenas, Rodrigo Alejandro, Espejo-Serna, Adolfo, Ferrari, Ana Rosa López- (2021): Two new species of Viridantha (Tillandsioideae; Bromeliaceae). Phytotaxa 520 (1): 97-105, DOI: 10.11646/phytotaxa.520.1.7, URL: http://dx.doi.org/10.11646/phytotaxa.520.1.7
