Sphagnum fimbriatum |
Sphagnum carolinianum |
|||||
---|---|---|---|---|---|---|
fringe bogmoss, fringe peat-moss, sphagnum |
Carolina sphagnum |
|||||
Habit | Plants typically small and slender, larger and compact in the Arctic, capitulum small to moderate-sized, often with a conspicuous terminal bud; green, yellowish brown to brown; without metallic lustre when dry. | Plants moderate to large, erect to floating, green to dark brown; capitulum large, well defined and flat-topped. | ||||
Stem(s) | leaves spatulate to broad-spatulate, 0.8–1.5(–2) mm, strongly lacerate across the broad apex and often part way down the margins, border scarcely to strongly broadened at base (0.25 width of base or less); hyaline cells rhomboid, efibrillose and often 1–2-septate. |
leaves lingulate to lingulate-triangular, 0.7–1.5 mm (to 3 mm in isophyllous forms), apex erose; hyaline cells mostly 1–septate but in a few cells with 2–3 parallel septations, efibrillose to fibrillose throughout, pores present in hemiisophyllous and isophyllous forms. |
||||
Branches | not 5-ranked, quite terete, long, and slender Branch fascicles with 1– 2 spreading and 1–2 pendent branches. |
straight to somewhat curved, with spreading leaves. |
||||
Branch leaves | ovate to ovate-lanceolate; 1.1–1.5(–2) mm, slightly concave, straight; apex involute; margins entire; hyaline cells on convex surface with numerous pores along the commissures grading from small pores near leaf apex to large pores at base, concave surface with large round pores at leaf apex and along margins. |
variable, broadly ovate to ovate-lanceolate, 1.3–5 mm; straight, hyaline cells on the convex surface with 4–8 µm round to elliptic pores in nearly continuous rows along the commissures, the concave surface aporose or with some porosity as on the convex surface. |
||||
Sexual condition | often monoicous. |
unknown. |
||||
Capsule | not seen. |
|||||
Spores | 20–27 µm, finely papillose on both surfaces; proximal laesura less than 0.5 spore radius. |
not seen. |
||||
Branch | fascicles with 2 spreading and 2 pendent in emergent forms, these reduced in aquatic forms to 2 per fascicle. |
|||||
Sphagnum fimbriatum |
Sphagnum carolinianum |
|||||
Habitat | Forming wet often floating carpets in pools in weakly minerotrophic mires | |||||
Elevation | low to moderate elevations | |||||
Distribution |
North America; South America; Eurasia; Pacific Islands (New Zealand)
|
AL; DE; FL; GA; LA; MA; ME; MO; MS; NC; NJ; NY; SC; TN; TX; VA; NF |
||||
Discussion | Subspecies 2 (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
The sporophytes of Sphagnum carolinianum are unknown. In its apparent restriction to the coastal plain, this species is most similar distributionally to such species as S. macrophyllum, S. fitzgeraldii, and S. tenerum. When forming carpets, S. carolinianum macrospically most resembles S. atlanticum but its branch leaves are not as elongate as those of the latter and its stem leaves have a much more obtuse apex. When growing aquatically, S. caroliniaum can resemble S. cribrosum, but in the latter species the hanging branches are not different from the spreading branches and may even be lacking. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
||||
Key |
|
|||||
Source | FNA vol. 27, p. 92. | FNA vol. 27, p. 79. | ||||
Parent taxa | Sphagnaceae > Sphagnum > sect. Acutifolia | Sphagnaceae > Sphagnum > sect. Subsecunda | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | S. subsecundum var. carolinianum | |||||
Name authority | Wilson & Hooker: in J. D. Hooker, Fl. Antarct., 398. (1847) | R. E. Andrus: Bryologist 86: 257, figs. (1983) | ||||
Web links |