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Ingham: Moss-Flora of Arkengarthdate. 



At the foot of the highest ridge of the limestone cliffs, 

 between Farngill and Reeth, I found a moss new to Yorkshire, 

 viz., Grimmia montana B.&S. It grows in small, round, flat, 

 black patches on the large boulders at the foot of the cliff. 

 Mr. Bagnall confirms my naming. 



I was interested to see Xeckera crispa var. falcata Boul. on 

 the same cliffs, and our geological friends may take it that this 

 is a strong proof that the cliffs are limestone, if any other proof 

 were needed. I have found the same moss on the Hambleton 

 Hills, Kilburn, and in the Jackdaw Crag Quarry, Tadcaster, and 

 I imagine the moss would not appear on anything but limestone. 

 Another interesting moss of Farngill is the vivid green one 

 Leptodontium ji ex i folium Hpe., my first find of this moss. 



On the second day Hellwith produced for me Eurhynchium 

 crassinervium B.&S., a rather rare moss, but which we meet 

 with oftener in Yorkshire than elsewhere. It is identical with 

 the same moss that I gathered at the Strid, Bolton Woods, and 

 behind Hardraw Scaur, Hawes. In a fast stream on Hurst 

 Moor I found the rare moss Fontinalis squamosa L., and in the 

 best condition, for it is in rich fruit, a very rare condition to be 

 in. Surely the fast stream under which it was submerged could 

 not have been the normal condition. No doubt after fruiting 

 the moss became submerged by the swollen stream caused by 

 the recent heavy rains. 



In the same stream a small-leaved and chocolate-brown form 

 of Hypnum ochraceum is quite at home. Its companions are 

 Brachytheciiun rivulare and Dichodontium flavescens Ldb. 



On the third day in Little Punchard's Gill ravine, in spite of 

 the heavy rain, I was able to find some interesting mosses, and 

 two not hitherto recorded. My chief finds here were: — Weisia 

 rupestris, in abundant fruit; Polytrichum alpinum L. c.fr. ; a very 

 tall growth of Zygodon Mongeotii B.&S.; Plagiobryum Zierii 

 Ldb. c.fr. ; Orthothecium intricatum B.&S., the large leaved, and 

 well-developed condition; Plagiothecium pulchellum B.&S., in 

 nice fruit; Hypnum ochraceum Turn., with abundant $ flowers, 

 but no capsules formed. Dicranella heteromalla var. interrupta 

 B. & S. , a new record, on a ledge close by a waterfall. Eurhynchium 

 murale var. complanatum B.&S., a new record, on a ledge near 

 a waterfall in the upper part of the gill. Except for the green 

 apices of the stems, the whole moss was steeped in the finest 

 black dust. It is a beautiful and distinct variety, quite different 

 in areolation, in branching, and habit from type. Mr. Bagnall 

 confirms my naming. 



Naturalist, 



