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Published In: Annals of Botany 2(3): 540. 1806. (Ann. Bot. (König & Sims)) Name publication detail
 

Project Name Data (Last Modified On 12/15/2011)
Acceptance : Accepted
Notes     (Last Modified On 12/13/2011)
general taxon notes:
There are about 40 species of Ulota in the world (Crosby et al. 2000). Eight species are known in China.
 

 

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8. Ulota D. Mohr  卷叶藓属   juan ye xian shu
Ann. Bot. (König & Sims) 2: 540. 1806. Orthotrichum subgen. Ulota (D. Mohr) Boulay, Musc. France, Mousses 342. 1884. Orthotrichum sect. Ulota (D. Mohr) Müll. Hal., Syn. Musc. Frond. 1: 711. 1849.
 
Plants small to medium-sized or rather large, dark green, yellowish green to brown or black, in loose tufts or dense mats. Stems elongate, prostrate or erect-ascending, with erect reproductive branches, simple or forked; rhizoids dense, brown. Leaves crisped or twisted when dry, erect-spreading or squarrose when moist, narrowly lanceolate with ovate base or linear-lanceolate; margins entire, often inflexed; costae single, strong, mostly subpercurrent; upper leaf cells hexagonal; lower cells narrowly elongate, yellow; basal marginal cells often differentiated into several rows of quadrate, thin-walled, hyaline cells. Gemmae usually present on leaves. Autoicous, rarely dioicous. Perichaetial leaves not or only slightly differentiated. Setae very short to elongate; capsules erect, ovoid, oblong-ovoid or cylindrical, symmetric, with 8 furrows, often forming ridges when dry; opercula convex or flat conic, with long, straight rostrate apices; annuli often persistent; stomata present in lower part of capsules; peristome usually double, rarely absent; exostome teeth 16, lanceolate, often united in pairs; endostome segments usually 8, rarely 16 or rudimentary. Calyptrae mitrate or rarely cucullate, lobed at the base, with golden hairs, rarely naked. Spores spherical, finely papillose to papillose.
 

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1. Peristome absent......................................................................................................................... 2. U. gymnostoma
1. Peristome present.................................................................................................................................................... 2
2. Endostome segments 16; calyptrae cucullate.................................................................... 5. U. morrisonensis
2. Endostome segments 8, rarely rudimentary; calyptrae mitrate........................................................................ 3
3. Endostome segments rudimentary or not clear; setae ca. 6 mm long............................................. 8. U. robusta
3. Endostome segments well developed; setae often less than 4 mm long............................................................. 4
4. Capsule urns ovoid; setae 0.8–1.1 mm long......................................................................... 6. U. perbreviseta
4. Capsules urns elongate-ovoid to cylindrical; setae 1.5–4.0 mm long............................................................. 5
5. Plants usually ca. 2 cm tall or taller; capsules indistinctly furrowed when dry, without forming longitudinal bands......................................................................................................................................... 4. U. macrocarpa
5. Plants usually ca. 1 cm or less than 2 cm tall; capsules distinctly furrowed when dry, often forming longitudinal bands..................................................................................................................................................... 6
6. Leaves ovate-lanceolate, scarcely rounded at the base............................................................... 3. U. japonica
6. Leaves linear-lanceolate, often rounded at the base.......................................................................................... 7
7. Stems erect, usually simple, or sparsely branched; endostome segments in 2 rows of cells......... 1. U. crispa

7. Stems prostrate, often branched; endostome segments in a single row of cells............................ 7. U. reptans
 
 
 
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