Hypnace.e.'J 47 [Amblystegium. 



incurvo-cernuous or suberect, subarcuate cylindraceous, contracted 

 below mouth, orange-brown; annulus of 3 rows of cells; peristome 

 yellowish, processes entire. 



Hab. — Damp stony places and banks in subalpine districts. Fr. 6. 



Four sheets of specimens are in the Linnean herbarium which consist 

 entirely of this species, and are named adimcum in Linnaeus's own hand- . 

 writing, so that there cannot be a doubt that this is what he intended to be 

 the type, and seeing how many different mosses have passed under the name 

 o{ aduncum, it will greatly simplify the nomenclature to restore the name to its 

 rightful owner. It adorns the tops of old walls with its neat glossy tufts in 

 m.any northern glens, e.g., the south side of Loch Tay— Glen Fender, &c., 

 and in a sterile state ascends as high as the summit of Ben Lawers, nearly 

 4,000 ft. 



Var. p. plumulosum Bv. Sck. 



Small, slender, intricate and prostrate, with denser branches. Leaves 

 much smaller, less acuminate, scarcely at all serrulate. Capsule smaller. 



Syn. — Leskea Deinbollii Swartz MSS. 



Hyj>. conttguum Nees in Hueben. Muse. germ. 676. Milde Bry. siles. 347. 

 Hypnum uncinatum Var. plumulosum Br. Sch. Bry. eur. 



Hab. — Trunks of trees and mountain districts, not common. Snowdon 

 (Dixon). Hebden Bridge, Yorkshire (Needham 1897) ! ! Glen Fender, 

 Blair Athol {BraithwaiU). 



28. AMBLYSTEGIUM EXANNULATUM {Guemh.) De Not. 



Dioicous ; slender, elongated, incurved at apex, pinnate-branched, 

 often purplish. Leaves falcate, elongate lanceolate, slightly sulcate, 

 cells very narrow, vermicular, at base oblongo-rhombic, at the auriculate 

 angles inflated, hyaline. Capsule cylindraceous oblong, erect or 

 incurved. (T. XCIV, B.) 



Syn. — Muscus pahistris terrestri similis, foliolis crassis obscure virentibus, mucronibus aduncis 

 unam partem spectantibus. Ray Synops. 2 ed. 38, li. 13 (1696). 



Hypnum palustre erectum, summitatibus aduncis. Dill, in Ray Synops. 3 ed. p. 82, n. 15 

 (1724), Hist. muse. 292, t. 37, fig. 26 (1741). 



Hypnum aduncum HuDS. FI. angl. 424 (1762). Swartz Muse. suec. 56 (1799). Web. 

 MoHR Hot. Tasch. 360 (1S07). Hueben. Muse. germ. 693 (1833). WiLS. Bry. brit. 

 381 (1855). Berk. Handb. br. m. 120 (1863). Hobk. Synops. 167 (1873). 



Hypnum exannulatum Guemb. Bry. eur. fase. 57 — 61, p. 34, t. 23 (1854). Schimp." Synops. 

 608 (i860), 2 ed. 733. Milde Bry. siles. 349 (1869). Hobk. Synops. 2 ed. 217 (1884). 



Amblystegmm exannulatum De Not. Epilogo 142 (i86g). 



