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Trematodon

Trematodon
Family: Bruchiaceae
Trematodon image
  • FNA
  • Resources
Richard H. Zander in Flora of North America (vol. 27)
Leaves usually contorted when dry, lanceolate to broadly subulate from an ovate or oblong sheathing base, 1.5-4 mm, apex acute to narrowly obtuse, margins entire or with a few teeth apically; costa subpercurrect to excurrent as a subula; distal laminal cells subquadrate or short-rectangular. Perichaetial leaves distinctly larger than the cauline, convolute-sheathing. Seta elongate, 0.5-1.5 mm. Capsule long-exserted, cylindric with neck strongly differentiated, conic to long-cylindric; peristome absent or present, of 16 simple, forked or perforate teeth, vertically barred on external surface; operculum differentiated, obliquely long-rostrate. Calyptra cucullate. Spores medium-sized, 20-30 µm, papillose.

Trematodon is clearly in need of revision, with more than 80 correct binomials extant but only about 25 species commonly accepted as well characterized. It clearly intergrades with Bruchia. Within the genus, only T. ambiguus and T. longicollis have strumose capsules.

Trematodon ambiguus
Media resource of Trematodon ambiguus
Map not
Available
Trematodon boasii
Media
not available
Map not
Available
Trematodon brevicollis
Media
not available
Map not
Available
Trematodon laetevirens
Media
not available
Map not
Available
Trematodon longicollis
Media resource of Trematodon longicollis
Map not
Available
Trematodon montanus
Media
not available
Map not
Available
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This project was made possible in part by the Institute of Museum and Library Services [MG-70-19-0057-19].

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