Seeds - Specimen details

Seeds - Specimen details

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Catalogue Number: 50001

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Plant Name 106.00 APOCYNACEAE Strophanthus eminii Entry Book Number
Artefact Name Seeds Vernacular Name
Iso Country Tanzania TDWG Region Tanzania
Parts Held Seeds Geography Description Tanzania
Uses SeedsUse: User: Not defined TDWG use
Storage Bottles, boxes etc Related Items
Donor Imperial Institute Donor No 2939
Donor Date 00/00/1928 Donor Notes
Collector Collector No
Collection Notes Collection Date
Exhibition Expedition
Number Components Publication
Notes: Label source: Envelope containing packets of Strophanthus eminii, hispidus, kombe from Herb specimens. Opuscular source: Letter dated Sept 4 1928 - Dear Sir, I beg to acknowledge the receipt of your letter of Aug 24 (Ref. No. 629) accompanied by specime, ns of Strophanthus seeds from Tanganyika. On examination these seeds were found to agree outwardly with seeds of Strophanthus eminii Asch. & Pax. in our Herbarium collection. Yours faithfully Director. Note M558-28. Seeds from Tanganyika. Director, Imper, ial Inst. Ref D.629 A number of the seeds from Tanganyika and some seeds of Strophanthus kombe and S. hispidus have been tested with sulphuric acid, dry sections and concentrated acid being used. In S.kombe and S.hispidus a strong green colour appeared i, n the andosperm almost at once after adding the acid, but was not seen in any of the seeds from Tanganyika. The endosperm and cotyledons of the latter turned yellow at first, and, in most cases, reddish or purple after some time. When a strong purple tint, had been reached, rinsing in water removed the red colour and revealed a pale greenish colour in the cotyledons. In S.kombe and S.hispidus, sulphuric acid eventually turned the cotyledons reddish or purple or greenish. The strong green colour maybe overl, ooked in the endosperm of these two species if the sections are examined soon enough after adding the sulphuric acid, as the tissue becomes almost black after a time. The seeds from Tanganyika should be referred to the Herbarium for an opinion as to the, ir identity LAB 30.8.28 Seeds to Herbarium 31.viii.28 JHH Mr Dallimore - Miss Moss reports that the seeds match those of S.eminii Asch. & Pax. 3.9.25.

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