186 SYNOPSIS OP BRITISH MOSSES. 



Trunks of trees and rocks. April, May. 



429. [N. Philippeanaj 8chp. Primary stem creeping, 

 densely pinnate, secondary ascending, remotely pinnate. 

 L. densely imbricate, complanate, strongly and ele- 

 gantly undulate, ovate-lanceolate, sharply narrowed 

 into a longer or shorter flexuose apiculus, nerveless, 

 areolae small, linear. Bry. Eur., v. 445.] Probably 

 only a barren form of N. pumila. Schp. Syn., ed. 2, 

 p. 668. 



Bark of a young ash tree. 



Valley of Hirnant, Bala, N. Wales (Eev. H. H. 

 Higgins), July, 1872, barren ; Scotland. 



430. H. orispa, Linn. St. 4 — 6 inches, pinnate, from 

 a creeping rhizome. L. complanate, undulate, ovate- 

 oblong or ovate-lingulate, somewhat obtuse and pointed, 

 serrulate at apex, faintly and shortly 2-nerved or singly 

 nerved half way. Caps, ovate elliptical, erect, lid 

 with a long, oblique beak. Dioicous. 



Mountainous rocks, trees. Spring. 



431. N. complanata, Linn. St. 1 — 2 inches, pinnate. 

 Br. short, crowded, attenuate. L. complanate, not 

 undulate, obliquely ovate-oblong, suddenly apiculate 

 from broadish apex, faintly and shortly 2-nerved, apex 

 serrulate. Caps, roundish, elliptical, tapering below, 

 erect, lid large, obliquely rostrate. Dioicous. 



Trunks of trees, walls, &c. Spring. 



97. HOMALIA, Brid. 



432. H. tricliomanoides, Schreb. St. about 1 inch, 

 irregularly pinnate. L. crowded, subsecund, subfalcate, 

 complanate, oval, serrulate, apex obtuse, apiculate, 

 faintly nerved half way. Caps, small, subcylindrical, 

 suberect, lid with an oblique beak. 



