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long-neck moss, trematodon moss

Leaves

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

costa percurrent or ending before the apex.

Seta

long, 10–30 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.

Trematodon longicollis

Phenology Capsules mature spring–summer.
Habitat Soil, sand
Elevation low to 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)
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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.
Parent taxa Bruchiaceae > Trematodon
Sibling taxa
T. ambiguus, T. boasii, T. brevicollis, T. laetevirens, T. montanus
Synonyms T. ambiguus var. longicollis
Name authority Michaux: Fl. Bor.-Amer. 2: 289. (1803)
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