Difference between revisions of "Buckiella"
Novon 11: 55, figs. 1, 2. 2001.
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Revision as of 22:17, 16 December 2019
Plants large, in thin to loose mats, light green or whitish, sometimes yellowish, dull or somewhat glossy. Stems creeping or sometimes erect, sparingly and irregularly branched, occasionally simple; hyalodermis present, sometimes indistinct, central strand sometimes present; pseudoparaphyllia absent. Stem and branch leaves similar, imbricate, somewhat contorted, strongly undulate, especially near apex, ovate to ovate-lanceolate, rarely oblong-lanceolate, not plicate; base weakly decurrent; margins plane, entire or usually serrulate to serrate at apex; apex acute to acuminate, rarely somewhat obtuse; costa double, ending just beyond base, rarely one branch reaching 1/3 leaf length; alar cells differentiated, rectangular; laminal cells papillose, papillae minute, granular, cuticular, much more abundant on abaxial surface. Specialized asexual reproduction absent. Sexual condition dioicous; perichaetial leaves narrowly ovate- to oblong-lanceolate, apex acute to acuminate. Seta dark red, reddish, or light brown. Capsule inclined to pendulous, cylindric, arcuate or sometimes straight, wrinkled and contracted below mouth when dry; annulus 1- or 2-seriate, deciduous, cells large; operculum conic to rostrate; peristome double; exostome teeth with fine striations between lamellae proximally, papillose distally; endostome basal membrane rather high, segments broad, keeled, cilia 2 or 3, as long or nearly as long as segments. Calyptra naked. Spores globose to ovoid, smooth or minutely papillose.
Distribution
North America, Europe, Asia, Pacific Islands (Hawaii, New Guinea).
Discussion
Species 2 (1 in the flora).
Buckiella occurs in terrestrial habitats in temperate, boreal, and rarely tropical woods. Buckiella draytonii (Sullivant) Ireland is endemic to the Hawaiian Islands.
Selected References
None.