Macromitrium pellucidum Mitten 1869

Macromitrium pellucidum Mitt. Jour
Linn. Soc. 12: 203. 1869.
Macromitrium laevifolium Mitt. Jour. Linn. Soc. 12: 203. 1869.
Plants with the general habit of Craspedophyllum mucronifolium, but more robust, dark green throughout; secondary stems short, up to 1 cm. or more long, branching; leaves appressed and slightly contorted when dry, occasionally reaching 2 mm. in length, elongatelingulate, the apex recurved, shortly apiculate by the excurrent costa, longitudinally plicate, the margins plane, entire; upper leaf -cells rounded, the marginal circular, minute, those nearer the costa elongate, short-oblong, incrassate, up to 29 n long, gradually more elongate downwards to a large basal area of narrowly linear cells; perichaetial leaves narrowly acute, the upper cells all much elongate; seta smooth, up to 8 mm. long; capsules oblong-cylindric, the urn up to 2 mm. long (specimens examined old and other characters of the sporophyte lacking) ; operculum subulate, calyptra sparsely hairy, according to Mitten.
Type locality: On trees, Panure, Uaupes River, Colombia {Spruce 80; type in herb. N. Y. Bot. Gard.).
Distribution: Trinidad (Fendler); Venezuela (Spruce 103); Brazil (Ynez Mexia 6038); British

Macromitrium pellucidum là một loài Rêu trong họ Orthotrichaceae. Loài này được Mitt. mô tả khoa học đầu tiên năm 1869.