26 i 
XXIV. Thongs. Crypt. Algae. 
Heaths, January, P. very Rare. 
Amp thill. 
Obs : 
Crust very unev^, 
870. Pierced Liver-zvort. — L, pertusus. 
Crust with smooth warts, set chequer-wise, 
pierced with i or 2 cylindrical perforati- 
ons. — Dillenius. XVlII. 9. Flora Danica. 
766. 
Trees, January, P. Common. 
871. Tellow-red Liver-zvort. — L. fxavo-ru- 
bescens. 
Crust greenish ash-color, tubercles orange- 
red. — Flora. Danica. 955. 1. 
Tress, January, P. Common. 
872. Rusty Liver-zvort. — Iv. vernal is. 
Crust whitish, tubercles roundish, rust-co- 
lored. — Dillenius. LV. 8. 
Rails, Posts, January, P. Common. 
Obs: 
Crust ashy ‘ white, 
^ * Liver- worts bearing shields. 
873. Rugged Liver-zvort. — L. ater. 
Crust, vvhitish, wrinkled, shields black, mar- 
gin white, rather scolloped. — Dillenius. 
XVlII. 15. A. 
Walls, 
