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Published In: Deutschland Flora 2: 22. 1796. (Deutschl. Fl.) Name publication detail
 

Project Name Data (Last Modified On 3/22/2011)
Acceptance : Accepted
Project data     (Last Modified On 3/23/2011)
Discussion:

Sphagnum cuspidatum grows in shallow water, often in mere puddles subject to drying. The plants are very soft and weak when wet. The branches are noticeably tapered, especially when the plants are drawn from the water. The leaves are somewhat wavy-margined when dry. The branch leaves have hyaline cells with pores few, small, and easily overlooked.

Illustrations: Crum (1980, Fig. K 1–6); Crum and Anderson (1981, Fig. 10 H–S); Crum (1984, Fig. 16).
Habitat: 2500–2600 m.
Distribution in Central America: COSTA RICA. Alajuela: Wilbur 8700 (DUKE); Cartago: Bumby 40-1 (CR); San José‚: Crosby 2579B (DUKE). PANAMA. Bocas del Toro: Davidse et al. 25422 (MO).
World Range: Eastern and Western Canada, North-Central, Northeastern, and Southeastern U.S.A.; Central America; Western South America; Northern, Southwestern and Middle Europe; Eastern Asia; Indo-China, Malesia.

 

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Sphagnum cuspidatum Ehrh. ex Hoffm., Deutschl. Fl. 2: 22. 1796.

Plants normally submerged, slender, flaccid, especially when wet, bright green to yellow; wood cylinder yellow-green; cortical cells more or less distinctly differentiated in 2 layers, long, more or less thick-walled, not inflated, without pores. Stem leaves concave, ovate to ovate-deltoid, blunt or acute, broadly bordered below; hyaline cells not divided, with or without fibrils above, on the outer surface with small end pores, on the inner surface largely resorbed near the leaf apex, the gaps decreasing in size below and at the leaf sides. Branches normally in fascicles of 4 (2 spreading), slenderly tapered; cortical cells with retort cells differentiated. Branch leaves slightly wavy when dry, long-lanceolate, involute-concave, bordered by 2–4 rows of linear cells; hyaline cells slightly convex on the inner surface, on both surfaces with few, small, inconspicuous end and corner pores; green cells in section broadly trapezoidal, more broadly exposed on the outer surface.
 

 

 
 
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