Flora of North America species comparison

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Trematodon longicollis

Trematodon boasii

long-neck moss, trematodon moss

boas' trematodon moss
Leaves

ovate-lanceolate to long-subulate from an ovate or obovate base, serrulate at apex;

costa percurrent or ending before the apex.

long-lanceolate, weakly dentate at apex;

costa excurrent.
Seta

long, 10–30 mm.

short, 1–4 mm.
Capsule

inclined, curved;

neck 2–3 times as long as urn when dry, long-cylindric, strumose at base;

peristome teeth 2-fid or irregularly perforate, not fragile, commonly persistent;

annulus compound, revoluble.

erect, straight;

neck short, slightly longer than the urn, tapering-conic;

peristome teeth undivided, not fragile, commonly persistent;

annulus simple, persistent.

Trematodon longicollis

Trematodon boasii
Phenology Capsules mature spring–summer. Capsules mature probably summer.
Habitat Soil, sand Late snowbed site
Elevation low to moderate elevations moderate elevations
Distribution
from FNA
AL; AR; FL; GA; KY; LA; MD; MS; NC; NJ; OH; OK; PA; SC; TX; VA; Mexico; Central America; South America; West Indies (Cuba, Puerto Rico); Asia (China, Japan, Papua New Guinea); Pacific Islands (New Caledonia)
[WildflowerSearch map]
from FNA
BC; NF
Discussion

Trematodon longicollis is much like T. ambiguus but differs in the relative lengths of capsule urn and neck when dry, and is clearly more southern in distribution. The peristome may occasionally adhere to the operculum on dehiscence and the capsule may then falsely appear gymnostomous.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 27, p. 438. FNA vol. 27, p. 438.
Parent taxa Bruchiaceae > Trematodon Bruchiaceae > Trematodon
Sibling taxa
T. ambiguus, T. boasii, T. brevicollis, T. laetevirens, T. montanus
T. ambiguus, T. brevicollis, T. laetevirens, T. longicollis, T. montanus
Synonyms T. ambiguus var. longicollis
Name authority Michaux: Fl. Bor.-Amer. 2: 289. (1803) W. B. Schofield: Bryologist 69: 204, figs. 1–14. (1966)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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