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BFNA | Family List | BFNA Vol. 2 | Theliaceae

Myurella Schimper in P. Bruch, W. P. Schimper & W. Gümbel, Bryol. Eur. 6: 39. 1853.
[referring to the smoothly cylindric, mouse-tail appearance of branches]

Dale H. Vitt

Plants thread-like. Branches simple to irregularly branched, erect-ascending to creeping; paraphyllia absent. Leaves imbricate and erect to wide-spreading and widely spaced, concave, ovate, blunt, and sometimes apiculate; margins erect, subentire to serrulate; laminal cells rhomboidal, firm-walled, nearly smooth to strongly 1-papillose abaxially; costa short, single, double, weak or almost absent; alar cells not differentiated. Sexual condition dioicous. Sporophytes rare. Capsule erect to nearly horizontal, cylindric, smooth; peristome double, well-developed. Calyptra cucullate.

Species 9 (3 in the flora); worldwide except Antarctica . Small, slender plants of calcareous rock shelves and calcareous moist soils, mostly in boreal and Arctic zones.

1 Leaf cells with one, large stout papilla abaxially.   Myurella sibirica
+ Leaf cells smooth or prorulose abaxially.   (2)
2 (1) Leaves imbricate, erect, rounded-obtuse to occasionally short-apiculate.   Myurella julacea
+ Leaves distant, wide-spreading, shortly acuminate-apiculate.   Myurella tenerrima

Lower Taxa

Related Synonym(s):


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Flora of North America  
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