Bryophytes (Mosses, Liverworts, and Hornworts) •

Henry'S Sphagnum

(Sphagnum henryense)



Plants moderate-sized to robust, capitulum typically flat, - 5-radiate and with terminal bud slightly visible; green, pale green, to pale pinkish brown tinged with brown to reddish brown; forming carpets or low hummocks. Stems pale green to brown; superficial cortical layer with spiral reinforcing fibrils clearly visible, usually 4 or more pores per cell, comb-fibrils lacking on onterior wall. Stem leaves to 1.9 - 1 mm; rarely hemiisophyllous; hyaline cells non-ornamented, nonseptate or septate. Branches - tapering to a point, leaves spreading to moderately imbricate. Branch fascicles with 2 spreading and 2 pendent branches. Branch stems with hyaline cells non-ornamented; funnel-like projections absent from interior end walls, large round pores on superficial walls. Branch leaves ovate, to 2.7 - 1 mm; hyaline cells on convex surface with numerous small round pores along the commissures, cell walls overlying chlorophyll cells often with a network of irregular worm like ridges although they may be lacking; chlorophyllous cells isosceles-triangular to narrowly ovate triangular in transverse section and just enclosed on convex surface,end wall not thickened. Sexual condition dioicous. Capsule with numerous pseudostomata. Spores 24-29 -m; surface finely papillose to nearly smooth.oor to medium fens, common in wooded fens and pond margins; low to moderate elevations; B.C., Nfld. and Labr. (Nfld.), N.S., P.E.I.; Ala., Alaska, Ark., Calif., Conn., Del., D.C., Fla., Ga., Ill., Ind., La., Maine, Md., Mass., Mich., Miss., Mo., N.H., N.J., N.Y., N.C., Ohio, Okla., Oreg., S.C., Tenn., Tex., Vt., Va., W.Va., Wis.; Asia.

Taxonomic tree:

Kingdom: Plantae
Phylum: Bryophyta
Class: Sphagnopsida
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