260 N. BRYHN. BRYOPHYTA. 



Explicatio tabularum. 



Tab. I. 



1. Folia Gywinostomi Iceois (40 X !)• 



2. Fissidens arcticus (40X1)- 



3. Folium Polytrichi fragilis (20 X !)• 



4. Folium (40X1) et i"ete foliare Orthothecii acuminati (150 XI)- 



Tab. II. 



1. Folium Brachythecii salebrosi p binervuU (25 X !)■ 



2. Folia Hypni tundrce (20 X !)• 



3. Folia Hypni hyperborei (25 X I)- 



4. Rete basilare ejusdem (150 X !)• 



