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olive peat-moss, sphagnum
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| Plants moderate-sized to robust, fairly weak-stemmed, lax in submersed forms, ± sprawling in emergent froms; golden brown to dark brown; capitulum weakly 5-radiate, branches straight to strongly laterally curved. |
leaves triangular-lingulate, 0.8–1.4 mm, spreading to appressed; apex acute to narrowly obtuse, hyaline cells nonseptate and fibrillose near apex. |
unranked or weakly 5-ranked, straight to strongly curved, leaves moderately elongated at distal end. |
ovate-lanceolate to narrowly ovate-lanceolate, 1.8–3.4 mm; straight to strongly subsecund; weakly undulate and recurved when dry; margins entire; hyaline cells on convex surface with 1–2 free pores per fibril interval, concave surface aporose or rarely with a few wall thinnings in cell ends and angles; chlorophyllous cells trapezoidal in transverse section and narrowly exposed on concave surface. |
dioicous. |
33–40 µm. |
fascicles with 2 spreading and 1–2 pendent branches.; branch stems green but sometimes reddish at proximal end, with cortex enlarged with conspicuous retort cells. |
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North America; Eurasia |
Subspecies 2 (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
1. Branch leaf hyaline cells on convex leaf surface with 1-2 pores per fibril interval, these usually less than 1/3 the cell diameter. | subsp. majus |
1. Branch leaf hyaline cells on convex leaf surface with 1 pore per fibril interval, these more than 1/3 the cell diameter. | subsp. norvegicum |
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| FNA vol. 27, p. 70. |
| Sphagnaceae > Sphagnum > sect. Cuspidata |
S. affine, S. alaskense, S. andersonianum, S. angermanicum, S. angustifolium, S. annulatum, S. aongstroemii, S. arcticum, S. atlanticum, S. austinii, S. balticum, S. bartlettianum, S. beothuk, S. bergianum, S. brevifolium, S. capillifolium, S. carolinianum, S. centrale, S. compactum, S. contortum, S. cribrosum, S. cuspidatum, S. cyclophyllum, S. fallax, S. fimbriatum, S. fitzgeraldii, S. flavicomans, S. flexuosum, S. fuscum, S. girgensohnii, S. henryense, S. imbricatum, S. inexspectatum, S. inundatum, S. isoviitae, S. jensenii, S. junghuhnianum, S. kenaiense, S. lenense, S. lescurii, S. lindbergii, S. macrophyllum, S. magellanicum, S. mcqueenii, S. mendocinum, S. microcarpum, S. mirum, S. mississippiense, S. molle, S. obtusum, S. oregonense, S. orientale, S. pacificum, S. palustre, S. papillosum, S. perfoliatum, S. perichaetiale, S. platyphyllum, S. portoricense, S. pulchrum, S. pylaesii, S. quinquefarium, S. recurvum, S. riparium, S. rubellum, S. rubiginosum, S. rubroflexuosum, S. russowii, S. sitchense, S. splendens, S. squarrosum, S. steerei, S. strictum, S. subfulvum, S. subnitens, S. subsecundum, S. subtile, S. talbotianum, S. tenellum, S. tenerum, S. teres, S. torreyanum, S. trinitense, S. tundrae, S. viride, S. warnstorfii, S. wilfii, S. wulfianum |
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| S. cuspidatum var. majus |
| (Russow) C. E.O. Jensen: in Botaniske Forening København, Festskrift, 106. (1890) |
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