140. T. flavo-virens. Bruch. Müller. St. short, with innovations from summit (interruptedly comose); l. oblong-ligulate, obtuse mucronate, margins entire undulate incurved; fruit-stalk red, slightly flexuose; thick nerve prolonged into a short mucro; caps. oblong-cylindrical pale yellowish brown, with a red mouth; per. t. elongate, regular, in pairs. Lid acuminate, half as long as caps. with an oblique beak.
Shoreham, Sussex; Plymouth (Holmes), Malahide (Dr. Moore). [W. Mitten. Jour. Bot., VI., p. 97.]
141. T. littorale. Mitten. St. elongate, tufted, more or less interruptedly comose; l. erecto-patent, oblong-ligulate obtuse, channelled, recurved towards apex, with nerve excurrent into a short mucro; basal cells hyaline oblong and rectangular.
Ireland; Whitsand Bay, Cornwall; Hastings, (loc. cit. p. 99.)
142. T. (Ditrichum) tenue. Hedw. Dwarf, branched. L. from an erect base, patent or secund, narrowly lanceolate, uppermost lanceolate-subulate; per. l. sheathing half their length, quite entire; caps. oblong erect or a little curved, lid conic rostrate.
Carn Lochan and Mael Girdy, 1863 (Crombie); Clova (Fergusson). [Dr. Braithwaite, Jour. Bot. VIII. 228.]
β. glaciale. in long broad tufts with broader erecto-patent leaves. (This is Ditrichum zonatum Lorenz.)
Sect. II. L. subulate from a lanceolate base.
A. dioicous.
143. T. tortile. Schrad. St. ¼in. gregarious, sub-flexuose; l. mostly secund, somewhat falcate, margin reflexed, nerve excurrent into the slightly toothed apex; caps. small cylindrical, erect, regular or curved; lid conical, slightly rostrate; per. teeth irregular, purplish red.