Sphagnum capillifolium |
Sphagnum mcqueenii |
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common red peat-moss, small red peat moss, 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 robust and weak-stemmed; yellow to light brown; capitulum flat-topped and with ± conspicuous terminal bud. |
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 equilateral triangular, 0.8–1.1 mm; often spreading; apex more or less obtuse; leaves often spreading; hyaline cells usually septate and often fibrillose in proximal half of leaf. |
Branches | not 5-ranked, terete. |
unranked, ± straight, leaves moderately elongated at distal end. |
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, less than 2.2 mm, straight; undulate and sharply recurved when dry; margins entire; hyaline cells on convex surface with 0–1 apical pores and often with pseudopores, concave surface with to 12 round wall thinnings in cell angles and sometimes along commissures; chlorophyllous cells triangular in transverse section, just enclosed on the concave surface and broadly exposed on the convex surface. |
Sexual condition | dioicous. |
unknown. |
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. |
not seen. |
Branch | fascicles with 2 spreading and 1–2 pendent branches. |
fascicles with 2 spreading and 1–2 pendent branches.; branch stems green, with cortex enlarged with conspicuous retort cells. |
Sphagnum capillifolium |
Sphagnum mcqueenii |
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Phenology | Capsules mature 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 | Habitat poorly understood, but known from floating mats in poor fen habitats |
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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ME; NH; PA; VT; NF |
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.) |
Sporophytes of Sphagnum mcqueenii are unknown. Sphagnum torreyanum and S. atlanticum both have longer, narrower, and less sharply recurved branch leaves than does S. mcqueenii. Both S. cuspidatum and S. viride have acute stem leaves as compared to the obtuse stem leaves of this species. Sphagnum pulchrum has 5-ranked branch leaves and apiculate stem leaves, which contrast strongly with the unranked branch leaves and obtuse stem leaves of this species. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 27, p. 91. | FNA vol. 27, p. 72. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | S. palustre var. capillifolium, S. capillaceum, S. capillifolium var. viride, S. margaritae | |
Name authority | (Ehrhart) Hedwig: Fund. Hist. Nat. Musc. Frond. 2: 86. (1782) | R. E. Andrus: Sida 22: 959, figs. 1–6. (2006) |
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