131 



adduced reasons for the belief that Hylomecoiij Maxim., and 

 Dicranostigma, Hook. f. & Thorns., may conveniently be 

 included in Stylophoruni, Nutt. In the Pflanzenreich all three 

 are once more regarded as distinct genera. The relationship to 

 each other of Papaver, Linn., Meconopsis, Vig., and Cathcartia, 

 Hook, f., resembles that which subsists between the other three 

 genera mentioned. The afterthought which has led Dr. Fedde 

 to refrain from formally including Cathcartia in Meconopsis tluis 

 has the advantage of according similar treatment to two parallel 



groups of types. 



When Viguier, in 1814/ first segregated Meconopsis from 

 Papaver, in which it had been included by Linnaeus, he did so 

 because the ovary of Meconopsis has a style but no apical disk. 

 The latter consideration was from the first a subordinate one, 

 because certain species of Papav-er in which there is no proper 

 disk were already known. Now, we have become acquainted 

 with species of Meconopsis which possess a well-developed apical 

 disk, and with others in which the style is obsolete. So' com- 

 13letely have the individual characters originally relied upon for 

 the discrimination of these two genera broken down, that one 

 competent authority has formally reunited Meconopsis with 

 Papaver A Nevertheless, by the use of the salient differential 

 characters in combination, instead of individually, it is still 

 possible to keep Meconopsis and Papaver apart. 



When Hooker in 1851 first established the genus Cathcartiat its 

 separation from Meconopsis was easy. No Meconopsis then 

 known has a sessile or sub-sessile stigma; every Meconopsis then 

 known has a capsule which opens when ripe only bv short apical 

 yalves liJ 



cent at 



ike those of every PapaveT in ^vliicli the capsule is dclns- 

 ..^o <,. all. The most striking difference bet^-een tlie species on 



wliicli ihe ffenns Meconopsis was based and tliat wliicli conshtntos 



^ - ^ -' •' ' ^ — -'ii. ,*« ii stigmas. 



ub- 



the type of the genus Cathcartia is met with m their sti^ 

 The stigma of that Meconopsis is clavate with decurreut 

 contiguous rays; the stigma of the original Cathcartia is depressed 

 with "stellately divaricate rays situated on the margins of com- 

 pressed laminae. This Cathcartia stigma is comparable witli the 

 Papaver disk; the difference between the two is that m Cathcarfm 

 the disk segments are plicate, in Papaver they are explanate. 

 Prom the first, however, this difference m stigma was a sub- 

 ordinate featm4 in ihe diagnosis of Cathcartia ^^.^^f^'V^!^ 

 The latter genus -already included a species ^/. svmplicifoha^ii^i 

 a stigma of the Catheakia typej though at the apex -f « ^^-t "^^ 

 style in place of subsessile as m Cathcartia villosa. No%s.otlier 

 five species of Meconopsis are known ^^^ P°f f j^ .^j^f ,,f .^^f^^ 

 occurs^ in Cathcartia; two of these have a style ^^^f «^;^* ^/ ^ f^ 

 simplicifolia, the other three 1-ve.no s^le In 1^6 on. of the 



p> 



, * Hist. Pav. Diss. p. 20. 

 t Groene in Pittonia, vol. i. p. IbS. 



xwvii. fior. l'2l on p- 2P1. 



X -2 



