Yoi'ksJiirc Naturalists at Bowes. 369 



these weeds of cultivation cease to appear after the ploui^h is 

 put aside, and proves how necessary the assistance of man is to 

 enable them to live ; when left to themselves they are soon 

 overcome by stronger and more aggressive neighbours. Doubt- 

 less there are large quantities of the seeds of these plants lying 

 dormant under the beautiful green carpet that surrounds Bowes, 

 and if ever the sod is turned again the probability is that they 

 will re-appear, many of them in large numbers, for the vitality 

 of the seeds of many species of plants is very remarkable. 



Not a single Potamogeton was noted ; this maybe accounted 

 for by the non-existence of ponds or slow-running streams. 



The Sedges, too, were equally scarce, so far as I know not 

 one was seen ; these are facts that require solving. Many other 

 instances of absence could be adduced, but I hope I have said 

 sufficient to provide food for a little thought which ma}- produce 

 fruit at future meetinsfs. 



(Appendix D.) 

 MOSSES AND HEPATICS OF BOWES AND DISTRICT. 



WILLIAM INGHAM. B.A. 



The week-end excursion to Bowes has proved a very great 

 success with these plants. 



It is of interest to note that the Harpidioid Hypna were 

 entirely absent from the routes traversed, and that the Sphagna 

 or bog mosses were seen only in crossing over the moor from 

 Sleightholme Beck. Even these latter were scarce and of four 

 species only, viz., Sphagnum cynibifolium, S. acutifolhim van 

 viride, S. fiinbriatum, and S. reciwzmm var. mucronatum. It 

 will be of advantage if I give the mosses and hepatics in classes, 

 according to the routes traversed. They are as follows : — 



I. Walls near Bowes. — Barbula unguicuLata Hedw. , B. 

 revoluta Brid., TortuLa intermedia Berk.. T. muralis Hedw., 

 Grimmia pulviiiata Sm., Orthotrichtim aiioiiialuiii var. saxatile 

 Milde, Bryurn capillare L., B. ccespiticium L., Rhacomitriutn 

 canescens Brid., Encalypta streptocarpa Hedw., Neckera com- 

 pLanata Hiibn., Pleuropus sericeus Dixon, occurring in very large 

 masses everywhere around Bowes, and forming the dominant 

 moss of the district. I believe that nowhere in Yorkshire is 

 this moss found in such abundance as at Bowes ; Amblystegium 

 Jilicinum DeNot and Aj7ib. serpens B.&S. by the road-side, and 

 Hypmim cupressiforme L. , next in abundance to Pleuropus 

 sericeus. 



1903 Septembei' i. Z 



