432 BAKER S NORTH YORKSHIRE. 
Genus lo. Helicodontium Schwacg: i species. 
,, II. Habrodon Schimp. i species. 
12. Myurella Br. Schimp. 2 species. 
13. Heterocladium .Vr/fiw/. 2 species and var. 
Genus 14. Hylocomlum {Ehrh.) Br. Schimp. 9 species 
and var. 
Genus 15. Campylium {Sull.) Mitt 2 species and var. 
16. Ctenidium {Schimp.) Miff. 2 species and var. 
17. Hyocomium Schitnp. i species. 
18. Ptilium (Sulliv.) Dc Not. i species. 
19. Sematophyllum Mitt. 2 species. 
20. Stereodon (i^r/V/.) il////. 14 species and var. 
21. Isopterygium Miff. 6 species and varieties. 
. 22. Plagiothecium Schimp. 6 species and var. 
23. Acrocladium Mitt. \ species and varieties. 
24. Entodon [La Pyl.) Lindb. i species. 
Fam. 20. Neckerace^e. 
Genus i. Porotrichum [Brid.) Mitt. 2 species. 
2. Ho mall a Brid. i species. 
3. Neckera Hedw. 4 species and varieties. 
4. Aisia Sulliv. I species. 
5. Climacium Web. Mohr. i species. 
6. Font! nails [Dill.) L. 7 species and varieties. 
7. Antitrichia Brid. i species and variety. 
8. Leu cod on Schwaeg. i species. 
9. Cryphaea Web. Mohr. 2 species. 
10. Hedwigia Ehrh. 2 species and varieties. 
A Supplement with additions of 36 mosses of recent 
discovery in the British Islands. 
The following pages contain the names and localities of all 
mosses known up to the present time in North Yorkshire, 
which I have been able to record by the help of several kind 
friends, who have investigated various districts, and sent me 
specimens, to all of whom I tender my oest thanks. 
