34 



ME. BENTHAM's synopsis 



stances considered as quite exceptional. The case of the Phryma 

 leptostachya has long been known, and is mentioned by Alph. De 

 Candolle in his enumeration of what he terms esjpeces disjointes, 

 which may be rendered by discontinuous or dissevered species. He 

 also alludes to the Saururus cernuus as common to North Ame- 



■ 



rica and China; the very remarkable circumstance of the rare 

 Ti^uhria occurring at once in the eastern United States and m 

 the Himalayas, was alluded to by Dr. Lindley, in a paper recently 

 read to the Society ; and we may now mention, as additional m- 

 stances of perfect identity, the Osmorhiza brevistyljis and Mono- 

 tropa uniflora^ common to these widely distant regions. My 

 AmpJiicarpcea Edgworthii^ from the Himalaya, is so closely allied 

 to the common North American A, monoica^ that the trifling dif- 

 ferences observed in the few specimens examined would probably 

 disappear in other specimens. And in such genera as ScJiizanthuSy 



PodopJiyUvm^ Thermop 

 Turpinia^ Strej. 



although the 



tical 



Mexican and Himalay 



containing 



almost 



geographical distribution 



The 



% Wall., a common Khai 

 with the original (7. Mar 



America. AVhen I gave a diagnosis of Wallich's plant m the 

 * PlantsB Junghuhnianse,' this similarity did not strike me, owing 

 to the greater luxuriance of the Indian specimens, their larger 

 stipules, more pointed leaflets and calyx lobes, &c., frequent re- 

 sults of luxuriance in allied snpm'ps • whilst thft few American 



dry 



grow 



Having 



before me a large number of specimens from a great variety ol 



found, when I came to draw 



racters for the two supposed species, that several of the more 



luxxuiant American ones from Texas and Mexico 



Indian plant. 



The C.macrophylla, Wall., from Tavoy and Java, only known by a 

 small number of specimens, still remains a detached East Asiatic re- 

 presentative of a considerable American type ; a fact which calls to 

 mind how frequently large American genera (such as Evpatonurn 

 Aster, Solidago, Solanum, &c.) are represented in Eastern Asia 

 by a small number of species, which gradually diminish or dis- 



■-.*.. 



1 ^. J j- 



-: ■ ^^, 



I ' 



