346 Dr. GnEviLLE's Account of a Collection of 
This fine Bryum, which I have named after a naturalist daily 
rising in public estimation (Mr. David Don, Librarian to the 
Society), has at first sight the aspect of short specimens of 
B. ventricosum, especially in the character of its fruit; but the 
much broader leaves, the very thickened margin, excurrent 
nerve, and quite different kind of innovationary branches, are 
abundant marks of distinction. I am not aware of any other 
species with which it is likely to be confounded. 
8. B. ligulatum. Schreb. Lips. p. 84. Hook. et Tayl. Musc. Brit. 
E 30. 
Genus 33. BARTRAMIA. 
1. B. pomiformis. Hedw.Sp. Musc. p.164. Hook. et Tayl. Musc. 
| Brit. 4.33. | 
(Seta lateralis.) 
Genus 34. LEucopox. 
1. L. Morensis. Schwægr. Suppl. i. 2. p. 2. et Suppl. ii. t. 25. 
Genus 35. PTEROGONIUM. 
1. P. gracile. Swartz. Musc. Suec. p.26. Hook. e: Tayl. Musc. 
Brit. t. 14. 
2. P. Smithii. Swartz. in Schrad. Journ. ii. p. 173. Hook. et 
Tayl. Musc. Brit. t. 14. | 
Genus 36. FONTINALIS. 
1. F. squamosa. Linn. Sp. Pl. p. 1571. Hook. et Tayl. Musc. 
Brit. RIR 
| Genus 37. Hypnum. 
1. H. riparium. Linn. Sp. Pl. p. 1595. Hook. et Tayl. Musc. 
Brit. t. 94. 
2. H. confertum. Dicks. Crypt. fasc. iv. Dit. IE BM 
Hook. et Tayl. Musc. Brit. t. 26. 
3. H. te- 
