Scientific Intelligence. 



will bring away , 



I piece 



of pollen of 



corresponding size; oi 



ne of larger 



surfiiee, like tlie tin of th 



e finger or t: 



be head of a fly, brint 



rs away the 



Tvhole mass of pollen of o 





cells. In the wild pla 



ntswefind 



that the pollen is . 



often cai 



rrilfUeitht 



;r bodily or piece-meal. 



Thestig- 



ma is rather concf 



ive than 



convex, and 



is sliffhtly viscid. 





InC.pubcscens, 



lyarvifi 



oru7n and spectahile, t'he whole poll 



en (equally 



exposed by the ck 





n of the face 



of the anther after de 



ihiscence) is 



pulpy but very litl 



tle'glu'ti) 









^vitt^ulxtAn^'"' 





i'mpossible th 



lat fertilization should 



be efi-ected 





raid.'' 



Tl)at aid ma 



y perhaps be given in 

 !i C. speclabile), that is 



the manner 



tTatMr.Danvi'n" 



upposes 



(but hardly i 



'Jr^z 



insect inserting its 

 base of the labellii 



i probos 



cis into either of the lateral entra: 





m, under the anther, 



and so thrusting some 



"of'tlLpol- 



]en forwards to th< 



J stigma 



, or more lik< 



Ay carrying some awa) 



' to another 



flower, and leaving it on ii 



ts stigma whi 



le attempting to gathe 



r the slight 



hy one lateral opening, and so take a load of pollen upon the back of t 

 head as they pass under the anther, which they would rub against t 





they would cf 

 nted. But, alt 



irry oft' some of its pollen 



totl 



leriowerofthe 



next^antvi; 



bouch we have 



i not been al 



>let 





^^cti.'^llyat_.^ 



'ork, we confi 



dently gather 



from their 





es, and from a 





:ts which we c 







tht 



y ordinarily go 



inbydjefroi 



It entrance (e' 



lenln cZcaul 



e), crawl un 



der 



the ample face 



of the stigma 



.as they feed, 



where they c, 



annot well : 



ivoid rubbing their 



heads or bacl 



:s against the. 



.tigma,andpa. 



sing on, ma 



ketl 



lieirexit byone 



of the lateral 





di now become 



visible to t 



hen 



1, almost inevi- 



tably carrying oft- pollen on 



their head or i 



shoulders as 



the' 



, escape, which 



pollen they v 



vould convey 



to the stigma 



of the next 



flo' 



,ver. Now the 



stigma offers 



no slight ic 



mfirraation'of 



this hypothesis, 



in a structure 



^vhich has n 



ever before b 



een noticed, b 



ut which is 



ver} 



^ striking in C. 



spectabile, &c. 



., and most admirably adapte 



d to the end 



1 in 



view. That IS, 



the broad stic 



Cma, instead of beina smearc 



!d witii glut 





:s matter, as m 



ordinary Orel) 



nds. is closely 



beset with mini 



.crigidtsh. 



!S 



pointed FPjlte, 



back (to which alone it could be expected to adhere) would be neatly 

 carded off by and left upon the stigma. The beauty of these adaptations 

 can be appreciated only by actual inspection of the parts or of a series o 

 ' We "cannot close without an evnrP....ion of gratitude to Mr. Darwin 



, impossible often to hud 

 ! apt to be hazarded upon 



