of EKING AND CLOSING OF THE PASSTON-FtOW KKv J(]1(^ 



Totundi/olia perennis and longlfolia pereimis liaVe, I am in- 

 clinedf to believe, been properly plait'<r by Suiith, Miller, 

 &c. under drosera rotundifo/ia hih\ hvgifolia; although I 

 find myself unable to account lor the stuieuieut ^iven in hi* 

 work, by VVillisell^ that sonie of the plants were annua], 

 and others perennial. Is there no mistake in this account ? 



P. 8. 'Siijce I finished tiiese observations, I have procuYed Dr. rtJntt^.r/ 

 Dr. Smith's small but txt-ei lent Co wpen^mm /^/o7« i>Vi^/|"^^^'?'^^^ 

 tanmcce; and find thitt, after describing the d. anjj^lica, thtis being a s^e- 

 Dr. adds, ** Anne variefasf^ wlTich' plainly shows, that )he ^^^t' ..... ^ ^ 

 entertained some suspicions, as to iis beins^ a distinct spe- 

 cies. I hope ray former remarks will afford sulBcient an- 

 swer to the question. 



N. B. It is proper to add, that many of my experiments, 

 regarding the irritability of the drcsera, related in- vol. , 

 XXIV, p. 2()3 &c., of your Journal, were mad* upon the 

 drosera antjlica formerly so called. 



d^-^ 



V. 



Remarks on the Expansion and Closiug of (he Flowers of iht: 

 Passifiora cocrulea, or Passion-^Fipuer. Bythesifime* J , 



>^OME very curious and interestiny; p'nenomena present ^, 



„ . 1 ni Phenomena <4 



themselves, from the time that the iio;vers ot the passi8»ra the passion 



coerulea, (passion-flower) begin to open, till the period at ^^^'^'■• 



which they coHJpleteiy close. As I have nowhere met with 



a description of these phenomena, I have been induced to 



communicate a few observations relative to the subject* » • 



Before entering upon the immediate topic of vlhis paper, . . 



I may remark, that the corolla of the pas&iflora coerulea con- it opens. 



sists of five petals, and that the cali/x is formed by five 



leaves, all of them terminated by crooked spines, ^V'hich *e» 



main in contact, during the infantile state of the flower, or 



indeed till the flower is ready to burst. On the day that , 



, rt • II t J- •• • 1 ; I • '^' ITJOde of 



the flower is to open, all the divisions ot the calyx oegm expanding. 

 either to part at once or alternately, and afterward expand 

 considtirably; when the petals of the corolla separate in a 



loDgitiiduij^L 



