Grimmiace^.] 68 ■ [Orthotrichim. 



surface, papillose at back; cells at base quadrate at margin, more 

 elongated in the middle, gradually becoming rounded upward, with 

 strongly incrassate walls and a large projecting papilla which is some- 

 times bifurcate ; nerve vanishing below apex. Perich. bracts broader, 

 thinner, subvaginant, sulcate. Caps, j^ellow, deep orange at mouth, 

 just immersed, oval or pyriform with the neck longer than sporangium, 

 abruptly narrowed at base into a very short pedicel, contracted below 

 the mouth and furrowed when dry, bands 8, not prominent, composed 

 of two rows of quadrate cells ; stomata superficial ; calyptra conic- 

 campanulate, naked, brown paler at margin, covering the sporangium, 

 roughish at apex, lid conic with an orange point. Teeth of per. 8 

 bigeminate, orange, obtuse at point, more or less lacunose in the 

 divisural line, densely and finely papillose ; cilia 8, shorter than the 

 peristome, yellow, of two rows of papillose cells. Male plants with 

 the female or in separate tufts, more slender. 



Hab. — On elms and oaks, rare and barren. 



Near York (Wilson 1856). Near Cheltenham {Bea:h 1851). Chipping Campden and 

 Mickleton, Glos. {Kirk 1857) ! ! Stratford-on-Avon and Harbury (Bagnall) ! ! Wytham 

 wood, Oxon. (Sosit'./Z). Near Buckingham (ffo/m^i 1884.) ! ! Kettering (D(,roH 1885). 

 Pencombe, Perrystone and Hentland, Herefjrd (Rev. A.. Ley 18S6). 



This moss has not been found with fruit here, but is readily known by 

 the subclavate branches with broad obtuse leaves, erect at margin. 



Another closely allied species (0. gvmnostomum Bruch) is found with this 

 on the continent and should be looked for here, especially as Dr. \''enturi 

 informs me that a specimen was sent to him by Jaeger from the collection 

 of M. Sickenberger labelled, " England, Yorkshire." In this species the 

 capsule is oblong and gymnostomus, the leaves ligulate, involute at margin, 

 with rhomboidal cells. 



** Endostome of 8 slender smooth or punctate cilia, sometimes wanting. 



2. ORTHOTRICHUM RTIPESTRE. SMeich. 



Autoicous ; laxly pulvinate, dichotomous. Leaves oblong-lanc, 

 revolute at margin. Caps, immersed, oblong, 8-striate, gradually 

 defluent into the pedicel, teeth 8, bigeminate, pale, papillose rugulose, 

 cilia 8 ; calyptra campanulate, fuscous, hairy. (T. LV, B.) 



Sv^^.—Ortliolrichum rupestre Scleich. Crypt, helv. exs. Cent. Ill, n. 24 (1806). Schwaeg. 

 Suppl. I, P. II, 27, t. 53 (1816). Brid. Mant. no (1819), Bry. univ. i, 279 (1826). 

 FuNCK Moost. 35, t. 23(1821). Hook. Grev. Edin. Journ. Sc. 1824, p. 121. Wallr. 

 Fl. cr. germ, i, 209 (1831). Hartm. Skand. fl. 366. Hueben. Muse. germ. 369(1833). 

 Br. Sch. Bry. eur. fasc. 2—3, p. ig, t. 9 (1837). De Not. Syllab. 152 (1838), Epil. 304 

 (1869). Rabenh. Deutsch. kr. fl. ii, S. 3, 181 (1848). C. Muell. Synops. i, 707 (1849). 

 Hammar Mon. orthot. suec. 20 (1852). WiLs. Bry. br. 181, t. 34 (1855). Carringt. 



