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

261. Z. viridissimus. Brid. St. ½–1in., fastigiate, radiculose below; l. much spreading recurved, widely lanceolate, somewhat contorted when dry, nerve sometimes slightly excurrent; caps. obovate obscurely eight-striate; lid with a long oblique beak: dioicous.

Trees and rocks. III. IV.

B. Peristome present.

1. Inner perist. fugacious.

262. Z. conoideus. Dicks. St. very short, cæspitose, fastigiate, densely radiculose; l. somewhat spreading, not recurved, widely lanceolate, with plane margins, and nerved nearly to apex; caps. pyriform, tapering below, eight-striate, lid with a long straight beak; perist., outer eight short recurved teeth, inner eight yellowish cilia, often absent: dioicous.

Trees. S. I. E. V.

2. Inner perist. persistent.

263. Z. Forsteri. Dicks. St. ¼–½in. densely tufted, with whitish radicles; l. erecto-patent, elliptic-lanceolate, nerved to apex or slightly excurrent; areolæ hexagonal (not as in all the previous ones, dot-like), oblong and diaphanous at base; caps. pyriform, striate; lid with a long inclined beak; perist., outer eight acute bi-geminate teeth, inner eight alternating cilia: monoicous.

Trees. South of England, rare. Spring.

264. Z. gracilis. Wils. MS. St. 1in. or more, tufted, branched; l. lanceolate twisted when dry, with plane margins, and denticulate near the apex; areolæ close and punctate above, large and pellucid below.