Campylopus nanofilifolius (C.M.) Par.

P. A. Florschütz, 1964, Flora of Suriname, volume VI, part I, Leiden: Brill : 81-32

7. Campylopus nanofilifolius (C.M.) Par. Ind. Bryol. Suppl. 94. 1900.

Dicranum nanofilifolium C.M. Nuov. Giorn. Bot. Ital. N.S. 4: 35. 1897, non C.M. Hedwigia 39: 254. 1900.

Type specimen Germain 1115, Bolivia (NY).

Rather large, soft, yellowish-green plants, growing in dense mats or cushions. Stems up to 6 cm long, interruptedly foliate, rarely sparingly branched. Leaves crowded at regular intervals along the stem, erect to spreading and somewhat flexuous, distant and appressed to the stem between the comose tufts, sometimes more or less falcate-secund at apical tuft. Leaves of the tufts gradually narrowed from a linear-lanceolate, concave base to a very long, slender, somewhat flexuous, sub tubulose, filiform point, up to 1,5 cm long and 0,75 mm wide; lamina in upper part only two rows of cells on each side of the costa. Margin serrate in upper part up to 1/3 down. Costa strong, excurrent, serrate on back in upper part, showing in cross-section a ventral and a dorsal layer of stereids, with a row of guide cells in the centre. Cells at extreme base usually inflated, forming distinct auricles, dark reddish-brown, just above the auricles more or less rectangular, 30-75 µ long and 6-12 µ wide, I'I`0WCI`towards the margin; towards apex irregularly elongate, with thicker, slightly pitted walls, gradually smaller and narrower, at mid-leaf about 20-30 µ long and 3-4,5 µ wide. Leaves between the comose tufts smaller, 3-6 mm long, not auricled, base clasping and point erect. Outer perichaetial leaves with a broad, clasping base, about 1/5 of total length of leaf, rather quickly narrowed to the long, slender point. Inner perichaetial leaves with a much clasping base about 1/3 of total length of leaf, with involute margins, not auricled; cells in the centre of the base more or less rectangular or elongate-rhomboidal, 60-120 µ long and 15 µ wide. Seta curved, up to 2 cm long. Capsule usually a little curved, especially when empty, furrowed when dry, about 1,5 mm long, often with a rather distinct neck, 0,5 mm long. Peristome teeth brown at base, the teeth up to 600 µ long, finely vertically striate below, forked to about the middle, forks slender, very finely papillose. Annulus large. Lid long-rostrate, about 0,6 mm long. Calyptra cucullate, not ciliate at base. (Fig 24)

Distribution: Bolivia.

On stems and branches of trees, on decaying wood, occasionally on rocks. Apparently confined to the higher altitudes (mossy forest). Emma Range, Wilhelmina Mountains, including Tafelberg; all between 600 and 1200 m. Not collected in British or French Guiana.

Specimens examined: B.W. 5796, 7137A, 7149A; Maguire 24458M (NY, U, 35 C. filifolius ): Daniels & Jonker 970, 1058, 1145, 1284; Wessels Boer 1485F; Schulz 10246C, 10321A.

The long, filiform leaves with a double layer of stereids in the costa, the interruptedly-foliate stems and the not ciliate calyptra characterize this species well. To avoid confusion I have not used the name C. humilis Mont. in the sense of Williams (N. Amer. Fl. 15: 145. 1913). Montagne described the calyptra as ciliate. The type specimen (Blanchet 103, Brazil, PC) does not have a calyptra. See also Crum & Bartram (Surv. Moss. Fl. Jamaica 13. 1958). The type of C. nanofilifolius does not have and has not been described as having a ciliate calyptra.