Two bark samples - one marked poison - Specimen details
| Catalogue Number: 53783 | |||||
|---|---|---|---|---|---|
| No Image | Plant Name | 84.01 RUBIACEAE Corynanthe sp | Entry Book Number | ||
| Artefact Name | Two bark samples - one marked poison | Vernacular Name | |||
| Iso Country | Cameroon | TDWG Region | Cameroon | ||
| Parts Held | Two bark samples - one marked poison | Geography Description | Cameroons | ||
| Uses | Two bark samples - one marked poisonUse: User: Not defined | TDWG use | |||
| Storage | Bottles, boxes etc | Related Items | |||
| Donor | African Association Ltd | Donor No | |||
| Donor Date | 07/05/1919 | Donor Notes | |||
| Collector | Collector No | ||||
| Collection Notes | Collection Date | ||||
| Exhibition | Expedition | ||||
| Number Components | Publication | ||||
| Notes: | Label source: Yohimbe in commerce by Prof James Small DSC. The Chemist and Druggist, April 1st, 1922, pp 48-50 and 'Yohimbe' its history and identification in commerce- same paper to be printed in full later Pharm Journ April.1.1922 p 266 One sampl, e says 'Poison - not good', other sample says Good. Includes three notes and letters see below. Opuscular source: Two samples of bark from the Cameroons. African Association Ltd, Royal Liver Building, Liverpool. These have been examined but an attemp, t to identify them specifically by the aid of Smalls article on Johimbe bark (Chemist and Druggist) has not been successful. In some characters these sps do not quite agree with any of the 4 sps described by Small, according to the details given by him.L, aB. 8.4.22 (2) - Copy of report of 20.5.19. (Letter 149.1919 xii p 19) - No ready means of distinguishing the barks represented by the two samples can be suggested. Big diff in age of the two samples. In both cases the determination is either Johimbe ba, rk (Corynantha johimbe K. Schum) or the bark of some other, allied sp. 'Good' sample may be Johimbe and the other may be a sample of Corynantha. (3) - Letter from Af Assoc. Liverpool 8 May 1919. - Dear Sir, Our agent in Duala, Cameroons has sent home to, us 2 samples of bark which he says represent an article being purchased for shipment to this country. The samples are posted to you under separate cover. One sample is marked good and the other no good. He goes on to say: 'The former is I understandv, alued at home at about 120 pounds sterling per ton. It is diff to obtain the bark as the services of an expert are necessary. It must not be too young or too old and must be thoroughly dry. If young it may not have attained its medicinal properties and, if too old it may have lost them. There is another bark (marked no good) which in appearence is the same, yet it is deadly poison I believe. You will see therefore how careful one must be in the purchase of the article'. May we ask you to kindly giveus, a report on the two samples and indicate to us how they might be readily distinguished one from the other. (4) Sample reply African Association May 22, 1919. - Inform them in ref to their letter of 8th instant that the 2 samples from the Cameroons submit, ted for identification are probably both Corynantha. No ready means of distinguishing the barks can be suggested, but considering the diff in age of the barks they may be taken as belonging to the same sp. They closely resemble Corynanthe johimbe, the Y, ohimbe of the Cameroons or Endun of the French Congo, from that the alkaloid Yohimbine is obtained. The sp marked good may be true Yohinbe. | ||||