Trematodon laetevirens Hakelier ...

• Main Authors: Belkina, Olga A., Vilnet, Anna A.
• Format: Text
• Language: unknown
• Published: Zenodo 2019
• Subjects: Biodiversity; Taxonomy; Plantae; Bryophyta; Bryopsida; Dicranales; Bruchiaceae; Trematodon; Trematodon laetevirens; Chukotka
• Online Access: https://dx.doi.org/10.5281/zenodo.7822107; https://zenodo.org/record/7822107

Trematodon laetevirens Hakelier & J.-P. Frahm Lindbergia 3: 223 (1976). DESCRIPTION Gametophytes 2-3 mm in height; Leaves 1.0- 1.8 mm long and 0.3-0.6 mm wide, erect spreading or contorted (in Chukotka specimen – leaves slightly falcate and concave), oblong-lanceolate, gradually tapering or on some shoots (in Norwegian, Swedish, Rasvumchorr specimens) rather suddenly narrowed in upper part; leaf margins flat and unistratose, cells in lower part of leaf thin walled, elongate or short-rectangular, 20-60 µm × 12-17 µm, becoming longer and narrower on margins (to 80-100 µm in length) and shorter and quadrate towards the apex (15-35 µm). Costa About 100 µm wide (in Norwegian sample – 150 µm, in Kuel’porr – up to 175 µm), occupying¹�₃ of leaf lamina base (in Rasvumchorr sample – some wider, in Chukotka’ – much wider, about ½ of leaf width), ending in and completely filling the apex, without stereids, in cross section with ventral (adaxial) row of large cells, smaller cells on abaxial side and with equal or ... : Published as part of Belkina, Olga A. & Vilnet, Anna A., 2019, Trematodon laetevirens Hakelier & J. - P. Frahm and T. brevicollis Hornsch. (Bruchiaceae, Bryophyta) in Russia, pp. 247-258 in Cryptogamie, Bryologie 20 (19) on page 251, DOI: 10.5252/cryptogamie-bryologie2019v40a19, http://zenodo.org/record/7822080 ...