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Viewing website implies consent to set cookies on your computer. Full details Swaledale and Arkengarthdale Archaeology Group
Registered Charitable Incorporated Organisation Number 1155775
SWAAG Honorary President:
Tim Laurie FSA

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 *****SWAAG_ID***** 437
 Date Entered 24/01/2012
 Updated on 30/01/2012
 Recorded by Tim Laurie
 Category Flower / Plant Record
 Record Type Botanical HER
 Site Access Army Range
 Record Date 15/01/2012
 Location Bellerby Moor. Small calcareous stream falling to Park Gill Head.
 Civil Parish Bellerby
 Brit. National Grid SE 092 932
 Altitude 310m
 Geology Faulted Namurian Strata above Richmond Cherts. Calcareous stream in shallow valley some 400m below spring head.
 Record Name Bellerby Moor. Rough Stonewort (Chara aspera) in stream at Park Gill Head.
 Record Description First noticed by Mrs Ann Russell during the recent SWAAG archaeological survey on Bellerby Moor. Chara spp. are non flowering herbs with a stem composed entirely of cellular tissue in a class of their own, Charaphytes. Chara spp are classified as algae and are not flowering plants. The interest in this plant lies, firstly, in the fact that it can form dense mats in shallow lakes and has the ability to excrete surplus calcium carbonate after fertilisation of the spore capsules. The fine grains of calcium carbonate which are excreted on the spore capsulrs of chara form economic deposits of lacustrine marl present in many lakes. Secondly the cellular structure is of interest in that the cells are very large and can be used to study cell development. Finally Chara absorb nutrients through their cell walls and are indicators of high quality water quality. It follows that any change to the water quality will severely affect the survival of Chara here. This is the first identification of Chara sp on Bellerby Moor and it will be interesting to determine whether the distribution is local or extensive in the calcareous streams of this locality. For information on the structure and importance of Chara, see
 Dimensions See photos
 Geographical area Wensleydale
 Species Rough Chara
 Scientific Name Chara aspera
 Additional Notes My grateful thanks to Mrs Ann Russsell for finding chara at Park Gill Beck Head and to Mrs Linda Robinson for the correct identification of this plant as Chara sp. (The identification of this Chara as Chara aspera is my own and is Provisional until confirmed.) Chara spp are algae and do not appear in the regional floras of today.
 Image 1 ID 2183         Click image to enlarge
 Image 1 Description Rough Chara, (Chara aspera, identified from Sowerby 1876) in Park Gill Head Beck.
 Image 2 ID 2184         Click image to enlarge
 Image 2 Description Rough chara. (Chara aspera, identified from Sowerby 1876.) in Park Gill Head Beck.
 Image 3 ID 305         Click image to enlarge
 Image 3 Description Park Gill Head from burnt mound at Park Gill
 Image 4 ID 2140         Click image to enlarge
 Image 4 Description Rough chara. (Chara aspera.) as James Sowerby's English Botany 3rd Edition,1886. Vol 12. Plate 1919.
 Image 5 ID 2141         Click image to enlarge
 Image 5 Description Rough chara. (Chara aspera.) as James Sowerby's English Botany 3rd Edition,1886. Vol 12. Plate 1919.
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