136 



The Naturalist. 



blossom about midsummer, and ripen their fruit six to eight months 

 afterwards. Eypnum Crista-castrensis requires sixteen to twenty-one 

 months to ripen its fruit, Polytrichum commune thirteen months, and 

 so forth. This will explain the meaning of the figures in the second 

 column. All the mosses given in the list are British species, except 

 Dicranum undulatmn, but many are rare or seldom found in fruit in 

 this country, and so I would suggest for our own observations that 

 the following common species be added to the list : — Sphagnum cymhi- 

 folium, Ehrh. ; JFeissia viridula, Brid. ; Dicranella Jieteromalla, Hedw. ; 

 Didymodon ruhellus, B. & S. ; Barhula muralis^ L. ; G?'immia pulvinata, 

 Dill. ; Bryum ccespiticium, L. ; B. argenteum, L. ; Mnium hornum, L. ; 

 Pogonatum aloides, L. ; Fissidens bj-yoideSy Hedw. ; Brachythecium popu- 

 leum, Hedw. 



THE AUTUMN FLOEA OF WHERNSIDE : 

 AN ACCOUNT OF AN EXCUESION IN SEAECH OF MOSSES. 



By F. a. Lees, F.L.S., and W. West. 



We left Dent Station one morning last August during a heavy 

 shower of rain, and took our way towards the marble works, 

 collecting the following as we went : — Blindia acuta, Bitrichum Uexi- 

 caule, OrtJiotricJium cupulatum, Ulota Bruchii, Targionia hypophylla, 

 Galium Molliigo, and Rom tomentosa, var. scabriuscula. From the 

 marble works we crossed the wet meadow upland to Great Blake 

 Gill, both sides of which we hastily worked. (We believe this little 

 gill would well repay a thorough working.) We found here Gym- 

 nodomum rupjesire, Ziena julacea, Plagiothecium pulchellum, Bryum 

 p^eudo-triquetrum, Breutdia arcuata, &c. 



We now ascended the north-eastern shoulder to the spring, where 

 the water rushes out of the hillside with great force at an altitude of 

 1800 feet, picking up in the ascent (as we trod on Ruhus Ghamcemorus) 

 Hyiocomium loreum, Sphagnum intermedium, S. papillosum, and Aulacom- 

 nion turgidum ; specimens of this latter moss were determined by Mr. 

 Boswell at the end of August, and we should have announced it ere 

 this but for an arrangement we had made to work the same route in 

 November, when we hoped to bring away a fair quantity of the moss 

 for distribution, as unfortunately we only found a small quantity 

 of it among the mosses we had collected that day, but unforeseen 

 circumstances have postponed our intended journey. We have since 

 learnt that it has been collected by Prof. Barker also on a north-east 



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