Cheilolejeunea inflexa Grolle 1979
Creators: name: Gil-Novoa, Jorge Enrique
name: Costa, Denise Pinheiro
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Plantae
Marchantiophyta
Jungermanniopsida
Porellales
Lejeuneaceae
Cheilolejeunea
Cheilolejeunea inflexa

description: 14. Cheilolejeunea inflexa (Hampe ex Lehm.) Grolle (1979: 174).—
Lejeunea inflexa Hampe ex Lehm. (in Lehmann 1838: 22).
Type:— WEST INDIES, inter muscos Indiae occidentalis reperit, ex hb. Hampe (holotype S).— Fig. 10H–O.
Cheilolejeunea mammifera Schuster (1980b: 429), syn. fide Bastos (2016)
Plants light brown, 0.7–1.5 mm wide. Stems in cross section 75–90 µm in diameter, 7 epidermal cells 21–30 × 13–18 µm; 9–11 medullary cells, 11–18 × 5–10 µm. Ventral merophytes 2 cells wide. Leaves subimbricate, ovate, flat, 440– 530 × 300–430 µm; margin entire or with few teeth near to apex, apex acute, dorsal margin usually strongly arched at middle, ventral margin somewhat recurved; cells long-hexagonal to orbicular, strongly papillose on the dorsal side, conspicuous trigones; basal cells 17–35 × 8–19 µm, median cells 16–33 × 13–20 µm, marginal cells 10–21 × 8–14 µm. Lobules small to median, 1/4–1/3 of leaf length, rectangular to ovate, tooth recurved, long, and acute, 25 × 10 µm, free margin involute, keel arched, strongly crenate, with large projecting papillae. Underleaves distant, ovoid, 200–320 × 200–280 µm, 3–4.5 × stem width, bifid to 1/3–1/5, base cordate, insertion arched. Autoicous. Androecia on short-specialized branches or intercalary on long shoots, with 4–6 pairs of bracts globose. Gynoecia with innovations pycnolejeuneoid, bracts obovate, 400 × 300 µm, apex rounded; lobule 180 × 80 µm, bracteole ovate 330 × 270 µm, bifid to 1/3, generally recurved. Perianth obovoid, inflated, with 5 rounded and crenulate keels, apex rounded or slightly truncate, beak short. Vegetative reproduction unknown.
Distribution and habitat:—Neotropical, occurring in Cuba, Dominica, Guadalupe, Jamaica, Costa Rica, Guatemala, Colombia Venezuela, and Brazil (Bastos 2017, Grolle 1979, Ye & Zhu 2009). This species grows as an epiphyte on tree trunks in the study area, in savanna, deciduous forests, lower and upper montane rainforests, between 1100–2600 m, in the Guatuso-Talamanca, Puntarenas-Chiriquí, Guajira, Magdalena, Cauca, Chocó-Darién, and Venezuelan provinces of the Pacific dominion (Fig. 11).
Notes:—The species is characterized by having leaves with an acute and curved apex, large papillae that are easily seen on the lobule keel, underleaves 3–4 × stem width, and underleaf base cordate.
Specimens examined:— COLOMBIA. Antioquia: Carmen de Viboral, 5°52’N, 75°20’W, 2100–2600 m, 20 June 1991, Callejas 10221 (HUA). Guatapé, 6°14’N, 75°10’W, 1850 m, 28 June 1997, Gutiérrez 1311, 1312, 1315, 1316 (HUA). Chocó: Unguía, Cerro Tacarcuna, 1115 m, 2 April 2017, Gil-Novoa 3358 (UPTC). Huila: Acevedo, Macizo colombiano, 1°36’21”N, 76°6’16”W, 1800 m, 29 November 2001, Castillo 2404b (HUA), 2505e (COL). Magdalena: Santa Marta, cuchilla de San Lorenzo, 2100 m, 12 January 1997, Winkler C360 (COL). Risaralda: Chocó Biogeographical Region, west side of cordillera Occidental, 1500 m, 25 July 1992, Gradstein 8420 (COL). Santander: Bolívar, La Hermosura, 06°08’05.9”N, 73°49’19.7”N, 1633 m, Gil-Novoa 2250 (UPTC); El Vocan, 27 October 1988, Schuster 88-1004 (F). VENEZUELA. Bolívar: Cerro Venamo, 1000 m, 27 December 1963, Steyermark 92256 (NY).
description: Published as part of Gil-Novoa, Jorge Enrique & Costa, Denise Pinheiro, 2023, Synopsis of the species of Cheilolejeunea (Marchantiophyta, Lejeuneaceae) in the Pacific dominion and Páramo province of tropical America, pp. 73-120 in Phytotaxa 587 (2) on pages 95-96, DOI: 10.11646/phytotaxa.587.2.1, http://zenodo.org/record/7731813