GRIMMIACE^.] 84 [Orthotrichum. 



Congleton Cloud (Wilson 1832)! Leicestershire (Rylands 1842)! Dailly, Ayrshire 

 (Hunt 1865) ! ! 



The typical form resembles 0. affine in habit, but is smaller with more 

 acuminate leaves, and the hairy vaginula, yellow calyptra, and orange caps, 

 with immersed stomata at once distinguish it. 0. patens is only a slight 

 variety having narrower ribs, and the capsule shorter and less tapering at 

 the base. 



14. ORTHOTRICHUM SCHIMPERI Hamm. 



Autoicous; in small irregular tufts. Leaves broadly oblong- 

 lanceolate. Capsule immersed, ovate, ventricose, with a short 

 shrivelled neck, and 8 broad orange stria? ; teeth 8, bigeminate, 

 recurved when dry, cilia 8, short, calyptra hemispheric, companulate, 

 naked. (T. LVII, E.) 



SYN. Orthotrichum pumilum (non Swartz) DICKS. PI. crypt, fasc. IV, 5 (1801). SM. Fl. brit. 

 1264 (1804). Eng. Dot. t. 2168. TURN. Muse. hib. 98 (1804). WEB. MOHR. Bot. 

 Tasch. 232 (1807). SCHWAEG. Suppl. I, P. II, p. 22, t. 50, p.p. (1816). HUEBEN. Muse, 

 germ. 358 (1833). HARTM. Skand fl. BR. SCH. Bry. eur. fasc. 2 3, p. 14, t. 5, f. i 

 (1837). RABENH. Deutsch. kr. fl. ii, S. 3, 179 (1848). C. MUELL. Synops. i, 696 (1849). 

 WILS. Bry. br. 178, t. 45 (1855). 



Orthot. affine j3. pumilum p.p. HOOK. TAYL. Muse. br. 74 (1818). HOOK. GREV. in Edin. 

 J. Sc. 1824, p. 121. GRAY Nat. arr. br. pi. i, 746 (1821). HOOK. Fl. scot. P. 2, 137(1821). 



Orthotrichum Schimperi HAMMAR Mon. Orthot. suec. 9 (1852). BOULAY Fl. cr. de 1'Est, 



611 (1872). JURATZ. Laubm. oester.-ung. 208 (1882). VENTURI in HUSN. Muse. gall. 



178, t. 48 (1887). 

 Orthotrichum fallax SCHIMP. Synops. 264 (1860), 2 ed. 327. BERK. Handb. br. m. 221 



(1863). MILDE Bry. siles. 173 (1862). DE NOT. Epil. 312 (1869). HOBK. Syn. br. m. 



Qi (1873). 

 Dorcadion Schimperi LINDB. Muse, scand. 28 (1879). 



Autoicous; in small dense dark green cushions, stems very short, 

 fastigiate. Leaves imbricated when dry, recurved from the base when 

 wet, then patent, oblong-lanceolate, obtuse or acuminate at point, 

 entire or erose and sometimes decoloured, nerve vanishing below point ; 

 cells at base quadrate at margin, elongate next the nerve, passing 

 gradually upward to rounded or hexagonal, with thin walls and very 

 small papillse, margin revolute in lower half and then recurved to some 

 distance below summit. Caps, small, immersed, rarely emergent, oval- 

 oblong with a swollen neck, suddenly narrowed into a very short pedicel, 

 bands 8, orange, of 4 5 series of quadrangular cells with thick lateral 

 walls, descending to middle of capsule, when dry and empty, contracted 

 and furrowed ; stomata immersed, the border cells covering a large part 

 of the stomatic cells ; vaginula naked. Annulus persistent, of 23 

 rows of compressed cells. Teeth 8, bigeminate, small orange yellow, 

 finely papillose, rarely perforated to the middle, when dry recurved to 



