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Published In: Bulletin de l'Académie Internationale de Géographie Botanique 16: 40. 1905. (Bull. Acad. Int. Géogr. Bot.) Name publication detailView in Biodiversity Heritage Library

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Distinguishing features of L. brachyphyllum include its stem hyalodermis, costa usually with a single layer of ventral stereids, small upper leaf cells with simple to bifid papillae scattered over the cell lumina, and short, non-porose inner basal leaf cells. Leptodontium filicola is similar to L. brachyphyllum in most of these features but it is a smaller plant (3 vs 6 cm high) with stiffly incurved to falcate-incurved, oblong-lanceolate leaves, broadly acute to obtuse leaf apices, and propagula clustered at the stem apex. Although Zander (1972) figured propagula for L. brachyphyllum  he did not describe them in either of his treatments of the species (1972, 1994). All Central American material of L. brachyphyllum examined lacked propagula. Leptodontium pungens differs from L. brachyphyllum in having 2–4 layers of ventral stereids in its costa and smooth, linear, often porose inner basal leaf cells. Leptodontium brachyphyllum is similar to L. capituligerum in having somewhat differentiated outer/inner basal leaf cells, and both species have unistratose, quadrate-celled enations from basal leaf cells at their leaf insertions. Leptodontium capituligerum differs from L. brachyphyllum in having smooth inner basal leaf cells that are very strongly differentiated from the outer basal cells, and complex, coroniform leaf cell papillae. Leptodontium longicaule is also somewhat similar to L. brachyphyllum but it is a more robust species with complex, coroniform papillae centered over the lumina of the upper leaf cells.

Illustrations: Thériot (1906, Figs. 1–8); Zander (1972, Figs. 130–135); Magill (1981, Fig. 52 17–24); Sharp et al. (1994, Fig. 197 f–i). Figure 38.
Habitat: On tree trunks and dry bank; 2550–4000 m.
Distribution in Central America: GUATEMALA. San Marcos: Steyermark 35789 (F, MICH); Totonicapán: Standley 83135 (F, MICH, NY).
World Range: Central America; Western and Northern South America; Southern Africa.


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Leptodontium brachyphyllum Broth. & Thér. in Thér., Bull. Acad. Int. Géogr. Bot. 16(196): 40. 1906 [1905]. Protologue. Colombia. Leg. F. Apollinaire-Marie, Nova-Granada, Bogota, 1904. 

Plants small to medium-sized in loose tufts, yellow-green to green, to 6 cm high. Stems red, erect or laxly ascending, hyalodermis present, sparsely radiculose. Leaves moderately spaced, erect and spirally twisted to contorted when dry, patulous, squarrose or squarrose-recurved when wet, ovate-lanceolate, 2–3 mm long, keeled above, weakly sheathing at base, decurrent; apices acute; margins recurved in lower 1/2–2/3, dentate in upper 1/3; costa percurrent to subpercurrent; upper leaf cells quadrate to hexagonal, 5–10 x 7–10 μm, firm-walled, pluripapillose, papillae simple to bifid, scattered over the lumina, inner basal cells short-rectangular to rectangular, 17.5–42.5 x 5–10 μm, pluripapillose, firm-walled, not bulging, outer basal leaf cells similar to upper leaf cells, basal leaf cells at insertion often with unistratose enations of quadrate cells, alar cells not differentiated. Sporophytes not seen. “Apparently dioicous. Setae about 13 mm long, yellowish brown; capsules about 2.5 mm long, cylindrical; annulus of about 4 layers of cells; operculum conic-rostrate, 0.5–0.7 mm high; peristome teeth inserted below the annulus, bifid to the base but more or less anastomosed below, the divisions linear, red, essentially smooth. Spores 13–15 μm, papillose.” (Zander 1994a).



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