Fissidens subbasilaris


Sp. Musc. Frond., 155, plate 39, figs. 6–9. 1801,.

Treatment appears in FNA Volume 27. Treatment on page 342. Mentioned on page 335.

Plants to 12 × 1.5–3.5 mm. Stem branched; axillary hyaline nodules absent; central strand present. Leaves as many as 28 pairs, sometimes ± undulate, oblong, obtuse-apiculate to acute, to 2.4 × 0.3–0.4 mm; dorsal lamina narrowed proximally, ending before or at insertion; vaginant laminae 1/2–2/3 leaf length, acute, ± unequal, minor lamina ending near margin; margin evenly crenulate-serrulate but irregularly serrate distally; costa ending 6–16 cells before apex, covered and obscured above by chlorophyllose cells, taxifolius-type; lamina cells irregularly 2-stratose, smooth, bulging, firm-walled, irregularly rounded-hexagonal, 7.5–10 µm. Sexual condition gonioautoicous and cladautoicous; perigonia gemmiform, axillary, and on short branches; perichaetia on short axillary branches near proximal ends of stem. Sporophytes 1 per perichaetium. Seta 1.5–5.5 mm. Capsule theca 0.8–2.1 mm, erect, radially symmetric or nearly so; peristome taxifolius-type; operculum long rostrate, 0.6–0.9 mm. Calyptra cucullate, smooth, 1.5 mm. Spores 13–18 µm.

Habitat: Particularly around bases of trees, also rocks, mostly limestone, infrequently decaying wood


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Ont., Que., Ala., Ark., Fla., Ga., Ill., Ind., Iowa, Kans., Ky., La., Maine, Md., Mass., Mich., Miss., Mo., N.H., N.Y., N.C., Ohio, Okla., Pa., S.C., Tenn., Tex., Va., W.Va., Wis., Mexico (San Luis Potosí, Tamaulipas).


Fissidens subbasilaris is distinguished, even in the field, by a costa obscured by chlorophyllose cells distally, and short perichaetial branches in the axils of proximal leaves. The plants are typically dark-green and often tinged with red.

Selected References


Lower Taxa

... more about "Fissidens subbasilaris"
Ronald A. Pursell +
Hedwig +
Ont. +, Que. +, Ala. +, Ark. +, Fla. +, Ga. +, Ill. +, Ind. +, Iowa +, Kans. +, Ky. +, La. +, Maine +, Md. +, Mass. +, Mich. +, Miss. +, Mo. +, N.H. +, N.Y. +, N.C. +, Ohio +, Okla. +, Pa. +, S.C. +, Tenn. +, Tex. +, Va. +, W.Va. +, Wis. +, Mexico (San Luis Potosí +  and Tamaulipas). +
Particularly around bases of trees, also rocks, mostly limestone, infrequently decaying wood +
Sp. Musc. Frond., +
Moenkemeyera +  and Octodiceras +
Fissidens subbasilaris +
Fissidens +
species +