Sphagnum capillifolium |
Sphagnum flavicomans |
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common red peat-moss, small red peat moss, sphagnum |
sphagnum |
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Habit | Plants small to moderate-sized, compact to fairly slender, normally stiff and erect; capitulum typically hemispherical; in exposed sites red, mottled red and green, in shaded sites green forms are common; without metallic lustre when dry. | Plants normally robust, sometimes moderate-sized, stiff and erect, capitulum large and typically hemispherical, usually deep reddish brown, frequently with a faint metallic purplish sheen when dry. |
Stem(s) | green to red; superficial cortical cells aporose Stem leaves lingulate-triangular, 1.2–1.6(–1.8) mm, apex ± involute; border entire and broadened to about 0.25 the width of the base; hyaline cells S-shaped, 0–1-septate, usually fibrillose in distal portion of leaf. |
leaves narrowly triangular-lingulate, 1.5–2 mm, apex right-angled to apiculate, border moderately strong and greatly broadened at the base (more than 0.25 width); hyaline cells rhombic, 0–1-septate, normally fibrillose near apex. |
Branches | not 5-ranked, terete. |
not 5-ranked, terete, long and tapering. |
Branch leaves | ovate-lanceolate, 1–1.4 mm, imbricate to moderately spreading, concave, straight, strongly involute near apex; hyaline cells on convex surface with elliptic pores along commissures, concave surface with large round pores away from commissures in proximal portions of leaf. |
ovate-lanceolate, 1.5–2.3 mm, straight, concave, apex strongly involute; margins entire; hyaline cells on convex surface with elliptic pores along the commissures, grading from moderate-sized pores near leaf apex to large pores at leaf base, concave surface with large round pores in proximal marginal regions of leaf. |
Sexual condition | dioicous. |
dioicous. |
Spores | 20–28 µm; finely papillose on both surfaces, with distinct raised Y-shaped sculpture on distal surface; proximal laesura 0.5 spore radius or more. |
27–32 µm, finely papillose on both surfaces; proximal laesura less than 0.5 spore radius. |
Branch | fascicles with 2 spreading and 1–2 pendent branches. |
fascicles with 2 spreading and 1–2 pendent branches. |
Sphagnum capillifolium |
Sphagnum flavicomans |
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Phenology | Capsules mature mid summer. | Capsules mature early to mid summer. |
Habitat | Ombrotrophic, broad range of acidic environments, also forming dense mats and carpets over wet, acidic rocks and peat, especially at higher elevations, less frequent in forested fen vegetation | Ombrotrophic to weakly minerotrophic and hygrophytic, forming hummocks on margins of ponds and in poor fens where some shade is available and carpets in wet forests along coast |
Elevation | low to high elevations | low to moderate elevations |
Distribution |
AK; CA; CT; ID; IL; IN; KY; MA; ME; MI; MN; MT; OH; OR; PA; RI; SD; TN; VA; VT; WA; WV; WY; AB; BC; MB; NB; NF; NS; NT; NU; ON; PE; QC; SK; YT; Greenland; Europe
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CT; DE; MA; MD; ME; NC; NH; NJ; NY; PA; RI; VA; NB; NF; NS; PE; QC |
Discussion | Sporophytes are fairly common in Sphagnum capillifolium. This species is most common and abundant in ombrotrophic heath vegetation associated with S. angustifolium, S. fallax, S. fuscum, S. magellanicum, S. rubellum, Polytrichum commune, and P. juniperinum. It can be distinguished from most other red species of sect. Acutifolia with which it co-occurs by its lack of 5-ranking in the branches. Sphagnum subtile is a forest and non-hummock forming species that has a distinctly shorter and more triangular-lingulate stem leaf. The stem leaf border on S. subtile is also more strongly bordered. Sphagnum tenerum, which geographically overlaps S. capillifolium only very minimally, has much more turgid branches and a generally more robust look. The stem leaf of S. tenerum is triangular-lingulate as compared to the lingulate- triangular stem leaf of S. capillifolium. See also discussion under 84. S. subnitens and 87. S. tenerum. The names Sphagnum acutifolium Schrader and S. nemoreum Scopoli (doubtful name) have also been used for this taxon. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
The sporophytes of Sphagnum flavicomans are uncommon. It is associated with S. cuspidatum, S. papillosum, S. rubellum, S. pulchrum, and S. torreyanum. This species is the ecological replacement for S. fuscum in much of the Atlantic coastal plain; compared to that species, S. flavicomans is substantially more robust and has a larger stem leaf with a more pointed apex. See also discussion under 83. S. subfulvum. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 27, p. 91. | FNA vol. 27, p. 93. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | S. palustre var. capillifolium, S. capillaceum, S. capillifolium var. viride, S. margaritae | S. acutifolium var. flavicomans, S. plumulosum var. flavicomans, S. subnitens var. flavicomans, S. subnitens var. obscurum, S. subnitens var. viride |
Name authority | (Ehrhart) Hedwig: Fund. Hist. Nat. Musc. Frond. 2: 86. (1782) | (Cardot) Warnstorf: in H. G. A. Engler, Pflanzenr. 51[III]: 79. (1911) |
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