52 



2 pyriforme Hedw. 



464 Hypnum Hedw. 



1 abietinum L. 



2 confertum Dicks. 



3 Cooleyanum Spreng. 



4 crista-castrensis L. 



5 cupressiforme Hook. 



6 cuspidatum L? 



7 denticulatum L. 



8 dimorphuin Brid. 



9 filicinum L. 

 10 fragile Brid. 

 1 L hians MuhJ. 



12 imponens Hedw. 



13 lutescens Schreb. 



14 proliferum. 



15 riparium Hook. 



16 serpens L. 



17 striatum Schreb. 



18 tenax? Hedw. 



19 Torreyanum Spreng. 



20 triquetrum L. 



465 Leskea Spreng. 



1 acuminata Hedw. 



2 curvata Voit. Sugar Loaf. Rarely producing fruit in this 

 country, or in Europe. 



3 obscura Hedw. 



466 Leucodon Schwaegrichen. 

 1 sciuroides Schwaeg. Deerfield. 



467 Neckera Hedvv. 



1 minor Beauv. 



2 pennata Hedw. »^ 



468 Orthotrichum Hedvv. 



1 afnne Hook, and Tay. 



2 anomalum Hedw. 



3 crispum Hook, and Greville. 



4 cupulatum Hoffm ? 



5 Drummondi Hook, and Grev. 



