192 



SYNOPSIS OF BRITISH MOSSES. 



mate. Caps, oblong, almost horizontalj lid conical, 

 without beak. Dioicoas. 



Ben Lawers. Barren. Autumn. 



449. H. heteropterum, Brvch. St. procumbent, more 

 or less pinnate, often rooting at apex; st. 1. from an 

 obovate base, acuminate ; br. 1. ovate-acuminate, small, 

 all more or less secund, serrulate, somewhat papillose 

 at back, nerved singly half way, or short and forked. 

 ParaphyUia ovate-acuminate, serrate. Caps, oblong, 

 scarcely curved, almost horizontal, lid with a long beak. 

 Dioicous. 



Moist rocks near waterfalls. November. 



Ireland, Wales, Lancashire, &c. 



109. THTIIDIUM, Schp. 

 a. Gradlia. 

 St. prostrate. Br. pinnate and bipinnate. St. 1. 

 cells all rotund-hexagonal. Caps, horizontal, lid con- 

 vexo-conical. Monoicous. 



450. T. decipiens, Be Not. {H. rigidulum, Ferg.). 

 St. 2 — 4 inches, rigid, villous, with short, attenuate 

 branches; st. 1. distant, subsquarrose, deltoid- ovate, 

 suddenly acuminate, auricled, concave, serrate, papillose 

 on both sides, sometimes secund above ; br. 1. smaller, 

 crowded, ovate or ovate-lanceolate, spreading or secund, 

 nerved half way or more, areolae large, hexagonal, and 

 pellucid at base, above oval-elongate, confused (Fer- 

 gusson). 



Springs and streams. 



Ben Lawers (Dr. Stirton), 1866; Clova, 2800 feet 

 (Fergusson), 1868; Auchinblae, 800 feet (Sim and 

 Fergusson) ; Glas Mheal, Perthshire, 2500 feet (G. E. 

 Hunt). All barren. 



