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Published In: Bibliotheca Botanica 87: 34. 9 f. 2. 1916. (Biblioth. Bot.) Name publication detailView in Biodiversity Heritage Library

Project Name Data (Last Modified On 2/16/2011)
Acceptance : Accepted
Project data     (Last Modified On 2/16/2011)

Leptodontium filicola is a small species that superficially resembles L. flexifolium in size, leaf shape, and marginal dentation. Bartram (1928) reported the first Costa Rican collections of it as L. filescens (Hampe) Mitt. (= L. flexifolium) and later described them as L. flexifolium var. denticulatum. Plants of L. filicola are larger and, as noted by Bartram (1928), coarser than L. flexifolium due to its leaves that are stiffly erect-incurved when dry. In contrast, the leaves of L. flexifolium are erect-flexuose to erect-appressed when dry. Leptodontium flexifolium further differs from L. filicola in lacking a stem hyalodermis, having leaf cells with c-shaped papillae, and having obovoid gemmae borne along the stem rather than clustered at the stem tips.

Illustrations: Herzog (1916, Fig. 9 2); Bartram (1931, Figs. 1–7); Zander (1972, Figs. 5, 16, 172–178); Churchill and Linares (1995, Fig. 155 e–h). Figure 42.
Habitat: On humus; 2000–2730 m.
Distribution in Central America: EL SALVADOR. Chalatenango: Sipman et al. 37669 (MO, NY). COSTA RICA. Alajuela: Valerio 284 (FH); Cartago: Croat 35420F (MO); San José: Standley 42777 (FH).
World Range: Central America; Western, Northern, and Southern South America, Brazil.


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Leptodontium filicola Herz., Biblioth. Bot. 87: 34. 1916.

Protologue: Bolivia. An einem Baumfarn zwischen San Mateo und Sunchal, ca. 1800 m, [Herzog] No. 4512, mit Leptotheca boliviana

Leptodontium filescens (Hampe) Mitt. var. denticulatum Bartr., J. Wash. Acad. Sci. 21: 289. 1931. Protologue: Costa Rica. Southern slope of the Volcán de Turralba, near the Finca del Volcán de Turralba, Costa Rica, alt. 2000–2400 m., Feb. 22, 1924, P. C. Standley no. 35160a

Plants small, densely tufted, yellow- to dark-green, to 3 cm high. Stems red, erect or laxly ascending, hyalodermis present, sparsely radiculose. Leaves distantly spaced, erect-incurved when dry, patulous to squarrose when wet, oblong-lanceolate, 2–3 mm long, keeled above, weakly sheathing at base, decurrent; apices broadly acute to obtuse, mucronate; margins recurved in lower 1/2–2/3, dentate in upper 1/3; costa subpercurrent; upper leaf cells quadrate, subrectangular to triangular, thick-walled, 5–10 x 5–7.5 μm, pluripapillose, papillae simple to bifid, basal cells short-rectangular to rectangular, firm-walled, not bulging, 15–50 x 5–12.5 μm, pluripapillose, alar cells not differentiated. Obovoid gemmae with transverse and vertical walls borne on short stalks branches clustered on the apical parts of the stem. Dioicous. Sporophytes not seen. Setae 1–4 per perichaetium, 14–17 mm long, yellowish brown. Capsules erect, cylindrical, 0.3–0.4 x 1.5–2.0 mm; exothecial cells rectangular, 30–45 x 65–100 μm; opercula conic-rostrate, 1 mm long; annuli of about 2 rows of cells; peristome teeth linear, 400–500 μm long, reddish orange, obliquely striate. Spores 11–13 μm, lightly papillose. Calyptrae 2.5–3.0 mm long. (Zander 1972).



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