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Herbarium specimen: Carex nigra x elata = C. x turfosa

Taxon:Cyperaceae: Carex nigra x elata = C. x turfosa Fr.
uncertain identification by Stephen Lemon 12/2/2016

There are good indications that this and the same specimens on the associate sheet are a hybrid with Carex nigra (lack of fibrillae, variable bract length).

Other name:Cyperaceae: Carex elata All. ("Tufted-sedge")
det. Almquist

"Carex stricta, var.-probably" Dr. Almquist in litt. to A.Bennett, on the same plant colld 21.6.1885, bearing, I believe Mr Bennett's number 138. (My number 211)

Filed in taxon folder:Cyperaceae: Carex elata All. ("Tufted-sedge")
Collected by:Mr William Hadden Beeby
Collection date:11/7/1886
Locality:Great Britain, VC17 Surrey, Hedgecourt Lake, TQ3540, The plant forms large, dense, tufts; but I can detect no fibrillae at the base of stem. The plant is usually submerged, + Mr Alfred Fryer thinks that when this is the case, the fibrillae are often absent. If the further specimens enable a definite opinion
ex herb:Mr William Hadden Beeby
Institution:South London Botanical Institute (SLBI)
Image:Carex nigra x elata = C. x turfosa herbarium specimen from Hedgecourt Lake, VC17 Surrey in 1886 by Mr William Hadden Beeby.Carex nigra x elata = C. x turfosa herbarium specimen from Hedgecourt Lake, VC17 Surrey in 1886 by Mr William Hadden Beeby.
collector's number:240 (or 211?)
notes:Propter margines foliorum siccitaterevolutus haec forma ad C. strictam est referena; fructuo habitusque, E. Goodenoughiis in memoriam revocantur, var. turfosum (Fr. p[ro] p[arte]) Almqu. indicant. At maxime memorabilis, quod, quamquam caespitose crescit, fibrillae desunt, quod non nisi in solitariis specimenibus vidi. Num in loco natali transitus in C. strictam typicam invenire liceat – [??] hybrida stricta x goodenowi visenda - Hac res in vivo exploranda. S. Almquist [Because the margins of the leaves in a dried state are revolute, this form is referable to C. stricta [= C. elata]; the fruits and habit, recalling C. Goodenowii [C.nigra], indicate var. turfosum (Fr. p.p [= pro parte, in part)] Almqu[ist]] . But then, most memorably [noticeably], although it is growing in tufts, fibrils are lacking, which I have seen only in solitary specimens. Whether in its place of origin a transition to typical C. stricta may be allowable – and the hybrid stricta x goodenowii is to be discovered - this issue is to be explored in living material. S. Almquist]
Filing note:Carex hudsonii

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Associated records

Other specimen entries from this sheet.
+Carex nigra x elata = C. x turfosaGB, VC17 Surrey, Hedgecourt LakeWilliam Hadden Beeby21/6/1885SLBI

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Documented by stephen lemon on 19th July 2016.

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