Curly Leaved Ulota MossThe Curly-leaved Ulota, Ulota crispa, Brid.
Habit and habitat.-In small dense round cushions, yellow-green on the surface and rust-colour within. Common in mountain woods on trunks and branches of trees, especially beeches, firs and birches.
Name.-The specific name from the Latin crispus, curled; refers to the special curling of the dry leaves.
Plant (gametophyte).-Small, erect.
Leaves.-Linear, lance-shaped from an enlarged oval concave base; apex narrow or hair-like, curled when dry; cells at base long and narrow, wormlike, thick-walled, on the margin enlarged and 4-sided.
Habit of flowering.Male and female flowers on same plan (monoicous) ; male flowerclusters bud-like.
Veil (calyptra).-Yellow, bell-shaped, split at the base, plaited lengthwise and covered with soft hairs.
Spore-case.-Pale-green or light-brown, thin-walled, pearshaped, narrowed end extending almost to the base of the pedicel, constricted under the mouth and deeply grooved when dry and empty.
Pedicel (seta).-Short and erect.
Lid (operculum).-With a comparatively short beak.
Teeth (peristome).-The outer of eight pairs, at first spreading, then recurved, the inner eight, rarely sixteen.
Spores.-Mature in August.