DiCRANACiE.j ii6 [Seligeria. 



The pretty little species which constitute the genus Seligeria have a 

 great resemblance to each other and require care to discriminate. Besides 

 our native species there are also found in Europe S. crassinervis Lindb. — 

 diversifolia Lindb. and subimmersa Lindb. from Scandinavia, with 5. polans 

 Berggr. from Spitzbergen ; the two latter have colored angular cells as in 

 Dicranum, and form the transition to the genus Blindia. 



Clavis to the Species. 



I. SELIGERIA DONII (Sm.) C. Muell. 



Autoicous ; leaves lanceolate, subulate, minutely serrate at base. 



Capsule erect, truncate, ovate, gymnostomous ; lid broadly conic. 



(T. XVI, G.) 



Syn. — Gymnostomum Donianum Sm. Eng. Bot. t. 1582 (1806). Hook Tayl. Muse. Br. 13, t. 7 

 (1818). Gray Nat. arr. Br. pi. i, 716 (1821). Hook. F1. scot. P. 2, 123 (1821) ; Br. FI. 

 ii, 10 (1833). Brid. Biy. univ. i, 66 (1826). Schwaegr. Suppl. HI, P. I, 6, t. 207 

 (1827). 

 Anodus Donianus Br. Schimp. Bry. eur. fasc. 33-6, p. 3, t. i (1846). Rabenh. Deutsch. 

 Kr. fl. ii, S. 3, 131 (1848). WiLS. Bry. br. 56, t. 7 (1855). Schimp. Synops. 112 (i860); 

 et 2 ed. 124 (1876). Berk. Handb. br. m. 287 (1863). Hoek. Syn. br. m. 38 (1873). 



Seligeria Doniana C. Muell. Syn. i, 420 (1849). Hartm. Skand. fl. 5 ed. 397 (1849). 

 Spruce in Ann. Mag. Nat. hist. 2 ser. iii, 479 (1849). Juratz. Laubm. Oester.-Ung. 

 68 (1882). 



Seligeria Donii Lindb. in Oefver. K. Vet. akad. Foerhand. 1864, p. 187. MiLDE Bry. 

 Siles. 86 (i86g). De Not. Epil. Bri. ital. 656 (1869). 



Autoicous ; very small, gregarious, yellowish-green ; stem very 

 short, simple. Leaves erect, straight, from an ovate-oblong serrulate 

 base, lanceolate-subulate, deeply channelled, acute, crenulate ; nerve 

 occupying all upper part of subula; cells of base rectangular, incrassate, 

 pellucid, upper smaller quadrate, chlorophyllose. Perich. bracts more 

 obtuse, semivaginant at base; capsule on a straight yellowish seta, 

 erect, minute, truncate-ovate, with a short tumid neck, pale olivaceous, 

 leptodermous, gymnostomous, exannulate ; lid broadly conic, sub- 

 oblique, columella exserted after the lid falls. Male infl. on a basal 

 branch, without paraphyses, bracts oblongo-lanceolate nerveless. 

 Hab. — On limestone and sandstone rocks. Fr. 8. 



