MB. BEISfTHAM OK lOGAXIACEiB. 



ten) of the lobes of the corolla and of the stamens 



75 



calyx is four 



But all the other 



characters are too near to those of Fagraa to justify its removal 

 into another tribe, more especially as, according to Blume, Fagrwa 

 itself has occasionally six or seven lobes to the corolla. 



America; at least I 



jcies of Potalia known from 

 find no difference between 



Martin's Cavenne 



ifi 



ruce's Rio Negro ones, corresponding with Martins 



Both 



are 



Tding 



shrubs (1 to 3 feet high 

 igh according to Spruce), 



flowering branches are said to wither 



with the inflorescences, as is the case with a great 



shrubs 



figured in Griffith 



icones Plantarum Asiaticarum/ t. 383. fig. 1, aa a Potalia, appears 

 to be a species of Ehretia allied to JE. longijlora, Champ. 



18. Akthocleista, Afz. 



The great difference between this African genus and Pofalia 

 consists m the greater development and singular arrangement of 

 tte placentae, weU figured in Hooker's Icones, t. 793, 794 (Niger 

 ■Flora, t. 43, 44). They appear to be two parietal placentae twice 

 bifid and connected together by a spurious dissepiment dividing 

 the ovary ii^to two cells, thus giving the appearance of two pairs 



distance 



two 



dissepiment. This diffi 



different species of Fag. 



placentation 



certainly have considered it as 



^ ^ _ 



a second species of Potalia. * 



On a further examination, I see no reason to alter the opinion 



Hooker 



nohilis and macrophyll 



Don, and A. Vogelii of Planchon, are in fact but one, the di- 



variation 



same specimen. 



. 19. Stbtchkos, Linn. 



r 



The genus Strychnos appears to have no very exact parallel in 

 either of the allied families Bvhiacea or Apocyne<B. In the former, 

 the combination of a succulent indehiacent many-seeded fhiit with 





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