Yorkshire Naturalists at Harwood Dale. 



Mosses and Hepatics. — Mr. Wm. Ing-ham, B.A., writes : — 

 The richest ground traversed for these plants was Breaday Gill, 

 but far too little time was given to it to disclose all the moss 

 treasures that I think will be found there. The most interesting 

 plant found here is Cephalozia ciirvifolia, one of the most 

 beautiful of the liverworts or hepatics. This is a rare plant, 

 known for some time as growing by the Lakes of Killarney, in 

 Naddle Forest, Westmorland, and in several places in Scotland. 

 Another rare hepatic here is Cephalozia lumilcp.folia. The 

 dominant mosses of the district are Ceratodon purpureus, 

 Hypmwi ciipressiforme. Milium hornum, Dicranum scoparium, 

 D. majus, and Hylocomiiun triquetriim, H. splendens, H. squar- 

 rosum, the last three (members of the same genus) occurring in 

 association on the g-rassy banks descending- into Harwood Dale, 

 the first named being the dominant partner. This association 

 among- the mosses may be cortipared with the association of 

 Lastrcea dilatata, Luzula sylvatica, and Pteris aquilina among 

 the higher plants observed in the Oak wood on the top of the 

 moor. Appended is a list of the plants observed. 



I. — Hepatics or Liverworts. 



Lepidozia reptans (L. )• Lophocolea hidentata (L.). 



Kantia trichomanis (L. ). Lophocolea heteropliylla (Schrad.). 



Cephalozia lunulcefolia Dum. Plagiochila asplenioides (L.). 



Cephalozia bicuspidata (L.). Jiingermania inflata Huds. 



Cephalozia ciirvifolia (Dicks.). Pellia epiphylla (L.). 



Scapania tindiilafa {L.). Metzgeria piibescens {Schrank.). 



Diplophyllum albicans (L.). Conocephalus conicus L. 



Of the above Diplophyllum albicans is the dominant one, 

 being abundant on banks and ditch sides everywhere. 



II. — Sphagna or Peat Mosses. 



Sphagnum acutifoliiim Russ. & Warnst. Sphagnum recurviim Russ. &Warnst. 



Vslv. plavo-riibellum 3indwKr. viride. Sphagnum violluscuvi Bruch. 



Sphagnum cuspidatum'Ruiis.Si.'W'd.rniyi. Spliagjium cornpactuvi DC. 



Var, submersuni Schimp. Sphagnum papillosum Lindb. 



Of these peat mosses Sphagnum recurvum is the most 

 abundant and most widely spread, and S. compacium comes 

 next in frequency. 



III. — Mosses (Musci veri). 



Tel rapliis pcUncida Hedw. Dicranella squarrosa Schimp. 



Polylrir/iiini aloidcs Hedw. Campylopus jiexiiosus Brid. 



PolylricliHui Jioiipcriniim VVilld. Dicranum Bonjeani DeNot. 



Polyhichuui commiDw L. Dicranum Scoparium Hedw. 



Cera/odoii purpureus Brid. Dicranum majus Turn. 



DicrancUa lie! croinalla Schimp. Leucobtyum glaiicum Schimp. 



Naturalist, 



