Cheilolejeunea adnata var. autoica Gradstein & Ilkiu-Borges (2009: 64)

2.2. Cheilolejeunea adnata var. autoica Gradstein & Ilkiu-Borges (2009: 64) View in CoL .

Type:— FRENCH GUIANA. Sa ̧l, 53°11’W, 3°7’N, trail 3 GoogleMaps in lowland rainforest, 200–400 m, on rotten log in much light, 26 June 1986, J.M. Bekker 2233-1 (holotype GOET).— Fig. 2N–V View FIGURE 2 . Cheilolejeunea larsenii Mizutani (in Hattori & Mizutani 1969: 95), syn. fide Bastos & Gradstein (2020)

Plants dark brown to yellowish brown, 0.5–1.3 mm wide. Stems in cross section 60–110 µm in diameter, 7–8 epidermal cells in cross section, 16–30 × 12–18 µm; 9–10 medullary cells, 8–15 × 7–12 µm. Ventral merophytes 2 cells wide. Leaves imbricate, orbicular to ovate, fully flat, 440–680 × 340–500 µm; margin entire, apex rounded; cells smooth, inconspicuous trigones, intermediate thickenings frequent; basal cells ovate 25–35 × 18–30 µm, median cells 18–32 × 17–25 µm, marginal cells 11–15 × 6–9 µm. Lobules 1/5–1/4 the length of the lobe, bottle-shaped, free margin strongly involute, keel straight to slightly arched, apex with a tooth formed by one long and acute cell. Underleaves distant, suborbicular, 1.5–2.5 x wider than the stem, 220–270 × 170–240 µm, bifid to 1/3–1/2, with a V-shaped sinus, margin entire, base cuneate. Autoicous. Androecia terminal on short or long branch, 3–6 pairs of bracts globose. Gynoecia on short or long branch, without innovations, bracts oblong-obovate, 450 × 330 µm, apex rounded; bracteole oblong-obovate 480 × 250µm, margin entire, bilobed ca. 2/5 its length. Perianth with 4–5 keels, beak short. Vegetative reproduction unknown.

Distribution and habitat:—Pantropical, occurring in Venezuela, Guyana, Brazil ( Bastos 2017), Central and South Africa, India, and Southeast Asia ( Shu et al. 2015); recorded here as new to Panamá. In the study area, the species has been reported for the Puntarenas-Chiriquí province of Pacific dominion, growing in lower montane rainforest, between 1100–2390 m. The record of C. adnata var. autoica occurring in the Páramo ( Fig. 3 View FIGURE 3 ), actually belongs to the Guajira province.

Notes:—The variety is very similar to var. adnata , but differs by the absence of caducous leaves and autoicous sexuality. It was initially described by Gradstein & Ilkiu-Borges (2009) and elevated to species level by Shu et al. (2015) and synonymous with C. larsenii , a species described from Thailand. Bastos & Gradstein (2020) again reduced it to varietal level, as they did not consider the differences with C. adnata sufficient for C. larsenii to be recognized as a different species.

Specimens examined:— BRAZIL. São Paulo: Ubatuba , 16 February 2004, Yano et al. 26946 ( SP) . Pernambuco: Cabo , 14 November 1984, Yano & Porto 9180 ( SP) . Espírito Santo: Santa Tereza , 23 November 1982, Yano et al. 4911 ( SP) . PANAMÁ. Chiriquí: Boquete , 3 September 1940, Svilha 425 ( NY) . VENEZUELA. Táchira: Parque Nacional El Tamá, 02 March 1976, Schuster & Ruiz-Terán 76-2294 ( F) .