The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

sphagnum

puerto rico sphagnum

Habit Plants moderate-sized, pale brown and shiny, capitulum well defined. Plants moderate-sized to often quite robust, ± weak-stemmed, lax; green, bluish green, green and brown to dark golden brown, often speckled in appearance; found submerged in shallow water, stranded along shore lines in loose carpets.
Stem(s)

leaves triangular, 0.7–0.9 mm, appressed to stem;

apex apiculate;

hyaline cells efibrillose and nonseptate.

leaves 1.1 × 1 mm; rarely hemiisophyllous;

hyaline cells non-ornamented, frequently septate.

Branches

moderately tapering, leaves only moderately larger at branch tips.

clavate and rounded at distal end.

Branch leaves

ovate-lanceolate, 1–1.4 mm; straight;

stiff, not undulate and slightly recurved;

margins entire;

hyaline cells efibrillose, convex surface with 1 pore per cell at cell apex, on concave surface with round wall thinnings in the cell ends and angles; chlorophyllous cells triangular in transverse section and well enclosed to just reaching concave surface.

broadly ovate, 2.4 × 1.7 mm;

hyaline cells on convex surface with numerous round pores along the commissures, comb-lamellae on hyaline cell walls where overlying chlorophyllous cells; chlorophyllous cells broadly triangular in transverse section and well-enclosed on the convex surface.

Sexual condition

unknown.

dioicous.

Capsule

with pseudostomata.

Spores

unknown.

22–29 µm; finely papillose on both surfaces;

indistinct triradiate ridge on distal surface;

proximal laesura 0.5–0.6 spore radius.

Branch

fascicles with 2 spreading and 2 pendent branches.;

branch stems green;

cortex enlarged with conspicuous retort cells.

fascicles with 2 spreading and 2 pendent branches.;

branch stems with hyaline cell comb-lamellae visible on interior cortex wall, cortical cell end walls with conspicuous funnel projections more than 1/2 length of cell, superficial cortical wall aporose.

Sphagnum splendens

Sphagnum portoricense

Habitat Moderate elevations Stream channels, shallow ponds, coniferous and hardwood swamps and pocosins
Elevation low to moderate elevations
Distribution
from FNA
QC; Known only from the type locality
from FNA
AL; FL; LA; NC; NJ; NY; SC; TX; Mexico; South America; West Indies
Discussion

Sporophytes of Sphagnum splendens are unknown. The lack of any fibrils in the branch leaf hyaline cells gives it an unusually glossy appearance that should make it readily identifiable in the field. The facts that it differs from S. fallax in only one character and that it is known only from the type locality make S. splendens questionably distinct to some observers. More investigation is needed.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Sphagnum portoricense is normally very easily distinguished because of its wet growing habit and strongly clavate branches.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 27, p. 76. FNA vol. 27, p. 54.
Parent taxa Sphagnaceae > Sphagnum > sect. Cuspidata Sphagnaceae > Sphagnum > sect. Sphagnum
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. rubroflexuosum, S. russowii, S. sitchense, 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
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. 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
Synonyms S. sullivantianum
Name authority Maass: Bryologist 70: 193, figs. 1–4. (1967) Hampe: Linnaea 25: 359. (1852)
Web links