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Herbarium specimen: Alnus glutinosa

Taxon:Betulaceae: Alnus glutinosa (L.) Gaertn. ("Alder")
Filed in taxon folder:Betulaceae: Alnus glutinosa (L.) Gaertn. ("Alder")
Collected by:Mr Harold Stuart Thompson
Collection date:9/12/1933
Locality:Great Britain, VC6 North Somerset, Pensford, ST66, Chew bank above Pensford
ex herb:Mr Harold Stuart Thompson
Institution:University of Birmingham (BIRM)
Image:Alnus glutinosa herbarium specimen from Pensford, VC6 North Somerset in 1933 by Mr Harold Stuart Thompson.
fruits/flowers:buds/immature flowers
notes:rotundifolia. kept in water indoors a month & then put in press, during which time the female spikes had developed, but the male catkins lengthened only slightly HST Jan 6 1934. Nor had the youmg leaf or buds on the other twig developed appreciably. Taken out of press 10 Feb 1934
Less than a week after another twig had been in the glass topped flower case at the museum the male catkins had opened well, & were shedding pollen, they had lengthened greatly probably owing to the warmer and ?purer air of the museum flower case HST

Inferred details are marked.

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Associated records

Other specimen entries from this sheet.
+Alnus glutinosaGB, VC6 North Somerset, PensfordHarold Stuart Thompson14/3/1936BIRM

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Documented by nacs12 on 9th June 2010.

Checked by oldnick

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