Flora of North America species comparison

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Sphagnum rubroflexuosum

sphagnum
Habit Plants small, soft, fairly weak-stemmed; pale green to pale yellow brown; capitulum not 5-radiate or only weakly so, may be tinged with red; loose to somewhat compact.
Stem(s)

leaves 0.7–1 mm (to 1.2 mm in hemiisophyllous forms) elongate-triangular to triangular-lingulate, apex obtuse-erose, to apiculate; usually fibrillose at least apically; in hemiisophyllous forms spreading and in anisophyllous forms appressed;

hyaline cells often septate at base.
Branches

moderately long and tapering, unranked to weakly 5-ranked, leaves not much elongated at distal end.
Branch leaves

1–1.7 mm, ovate-lanceolate, undulate and recurved when dry;

hyaline cells on convex surface with 3–10 round pores per cell in the cell angles and free, on concave surface with round wall thinnings in the ends and angles.
Sexual condition

unknown.
Spores

not seen.
Branch

fascicles with 2 spreading and 2–3 pendent branches.;

branch stem cortex enlarged and with conspicuous retort cells.

Sphagnum rubroflexuosum
Habitat Forming carpets in weakly minerotrophic fens
Elevation moderate elevations
Distribution
from FNA
MD; PA
Discussion

Sporophytes are unknown in Sphagnum rubroflexuosum. Compared to the closely related S. flexuosum, this species is paler and may have a reddish stem. Otherwise, identification must be made microscopically on the basis of branch leaf porosity. Although we have not seen this species in the field, it should be separable from S. majus, the only other large, aquatic species of sect. Cuspidata, in its range by traits of stem leaves and its color. Sphagnum majus is also typically a much darker brown.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 27, p. 76.
Parent taxa Sphagnaceae > Sphagnum > sect. Cuspidata
Sibling taxa
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. majus, 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. 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
Name authority R. E. Andrus: Bryologist 91: 364, figs. 1–8. (1988)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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