3.
Trematodon longicollis
Michaux, Fl. Bor.-Amer. 2: 289. 1803.
Trematodon ambiguus
var.
longicollis
(Michaux) Arnott
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.
Capsules mature spring-summer. Soil, sand; low to moderate elevations; Ala., Ark., Fla., Ga., Ky., La., Md., Miss., N.J., N.C., Ohio, Okla., Pa., S.C., Tex., Va.; Mexico; West Indies (Cuba, Puerto Rico); Central America; South America; Asia (China, Japan, Papua New Guinea); Pacific Islands (New Caledonia).
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.
