- rent 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.
Sandy places, rare; Belfast, Yorkshire, Sussex. X. XI.
144. T. flexicaule. Br. & S. St. 1-3in. flexuose, cæspitose, with fastigiate branches; l. longer and more setaceous than in last, flexuose, concave, usually secund, nerve broad, excurrent, toothed at apex; caps. erect, small, ovate-oblong; annulus present; per. teeth long irregular.
Scotch and Derbyshire mountains (calcareous). VI.
var. β. densum. densely cæspitose; l. straighter.
