DICRANACE^.] 120 [Seligena. 



of subula ; perich. bracts broader at base with shorter points ; cells 

 rectangular pellucid. Capsule light brown, on a longish pale yellow 

 seta, pachydermous, narrowly elliptic, occasionally somewhat asym- 

 metric with a small mouth, slightly cernuous ; lid pale red, with a long 

 slender slightly oblique pale beak ; teeth of per. purple, lanceolate, 

 remotely articulate. Male infl. at base, bracts three, short. 

 HAB. Detached chalk blocks partially imbedded in soil, rare. Fr. 5 6. 



On brick rubbish, Wetherby, Yorks. (Dickson) \ On chalk, north side of S. Downs, Sussex. 

 Stanmer (Jenncr 1840) ! ! Woolsonbury hill (Mitten) ! Lewes (Unwin) ! ! Box hill, 

 Surrey (Mitten). Dunton Green, Kent (Holmes). 



Schimper recognized original specimens of Dickson's B. paucifolium to 

 be this plant, yet he makes no reference to it in his publications, though 

 Mr. Carruthers has given a clear history of the species in his paper in Journ. 

 Bot. Dickson's figure is very incomplete, and it is probable that he distri- 

 buted for B. paucifolium, other small mosses which resembled it. It is best 

 distinguished by the elongated capsule, which becomes darker and more 

 pyriform when old. 



6. SELIGERIA CALCAREA (Dicks.) Br. Sch. 



Autoicous ; resembling S. pusilla. Leaves ovate at base, narrowly 

 lanceolate, rather obtuse. Capsule larger, turbinate. (T. XVII, B.) 



SYN. Bryum calcareum DICKS. PI. cr. Brit. fasc. II, 3, t. 4, f. 3 (1790). RELH. Fl. Cant. Suppl. 



3, p. 9 (1793). SM. Eng. Bot. t. 191 (1794). WITH. Bot. arr. br. veg. 3 ed. iii, 812 (1796). 



ABBOT Fl. Bedf. 243 (1798). HULL Br. Fl. P. 2, 257 (1799). 

 Grimmia calcarea SM. Fl. Brit, iii, 1187 (1804). TURN. muse. hib. 25 (1804). 

 Weissia calcarea HEDW. Sp. muse. 66, t. n, f. i 5 (1801). BRID. Sp. muse. I, 115 (1806), 



Mant. 43 (1819), Bry. univ. i, 351 (1826). SCHWAEGR. Suppl. I, P. I, 115 (1811). ROEHL. 



Deutsch. Fl. iii, 50 (1813). HOOK. TAYL. Muse. Brit. 47, t. 15 (1818). FUNCK Moost. 



13, t. 9 (1821). GRAY Nat. arr. Br. pi. i, 732 (1821). NEES HORNSCH. Bry. germ. 



ii, 2, p. 10, t. 31, f. 24 (1831). HUEBEN. Muse. germ. 144 (1833). HOOK. Br. Fl. ii, 



23 (1833)- 

 Seligeria calcarea BR. SCH. Bry. Eur. fasc. 33 36 p. 4, t. i (1846). RABENH. Deutsch. 



Kr. Fl. ii, S. 3, 132 (1848). C. MUELL. Syn. i, 419 (1849). WILS. Bry. Brit. 54, t. 15 



(1855). SCHIMP. Synops. 114 (1860) et 2 ed. 125 (1876). BERK. Handb. Br. m. 288, t. 



24, f. 2 (1863). LINDB. in Oefv. v. ak. Forh. 1864, p. 188. MILDE Bry. siles. 87 (1869). 



HOBK. Syn. Br. m. 38 (1873). HUSN. Mouss. nord-ouest 45 (1873). 



Autoicous ; densely gregarious, dull blackish green. Stem very 

 short. Leaves short, broad, lower ovato-lanceolate. upper from an 

 oval oblong base, abruptly narrowed into a rather obtuse shortish 

 curved subula, quite entire ; nerve flattish, faint at base, stronger 

 toward apex and occupying all upper part ; cells at base shortly 

 rectangular, thin pellucid, upper quadrate, incrassate, highly chlorophyl- 

 lose. Perich. bracts subvaginant, from a broadly oval base, longly 

 acuminate, of laxer texture and with thinner nerve. Capsule on a 

 thicker yellowish-brown seta, larger, more solid, the lid more shortly 

 rostrate ; teeth of per. broader and more obtuse, more densely articu- 

 late ; spores larger. Male infl. with longer bracts. 

 HAB. Chalk cliffs and calcareous rocks. Fr. 4 5. 



