A Synopsis of the British Mosses / Containing Descriptions of All the Genera and Species, (With Localities of the Rarer Ones) Found in Great Britain and Ireland, Based Upon Wilson's "Bryologia Britannica," Schimper's "Synopsis," Etc.

by Charles C. P. Hobkirk

46. G. microstomum. Hedw. St. ⅛ to ¼in. densely tufted; l. linear-lanceolate, acute, upper ones longest, nerve excurrent; capsule elliptical, sometimes oblique and gibbous, olive-brown, much contracted, lid with a longish curved beak.

Fields, &c. Spring.

var. β. obliquum. caps. oblong, oblique, lid sub-rostrate. γ. brevirostre. caps. oblong symmetrical, lid short conical. δ. brachycarpum. caps. roundish, gibbous. ε. elatum. innovations overtopping fruit, caps. roundish small, lid sub-rostrate.

b. Caps. scarcely contracted; sporangium not adherent.

47. G. tortile. Schw. St. ⅛–¼in. densely tufted with fastigiate branches; l. oblong-lanceolate, spreading or sub-erect curved, obtuse, pointed with the excurrent nerve; caps. elliptical, with a purple mouth and an inclined beaked lid.

Limestone rocks. Spring.

var. β. subcylindricum. l. linear-lanceolate, caps. oblong.

6. WEISSIA. Hedw.

a. Monoicous.

48. W. controversa. Hedw. St. ⅛–¼in. branched; l. lower lanceolate, upper linear-lanceolate, margin incurved, with a slightly excurrent nerve; caps. oval, erect, lid conical, beak half-length of capsule; barren fl. gemmiform.