124 ILLUSTRATIONS ORJNPIAN BOTANY. 



Polypetala?, Perigynae and Epigynse; ^ndLiEpigynse antlieria'^^connatis.sx^^Sd. Corollifl 



l&ijuivaleut ta^ Monopetalae hypogyna, and 4th. Monochlamydeoe^ including all those orders 

 xn which the corolla isrwanting^ It is the third* of these sub-classes we axe now about 

 to consider which includes,*-in his work, a coatimious series of. yearly 40 orders, without 

 imb-dimion or firrouDinfftQ assist us in referring anv unknown nlant to thft nrrlpr'^^ x^a.x^v. 



9m^^ Eadlicher and Meisnenaboth follow -Jussieu in assigning a high -■value to the corolla 

 their leading divisions in the distribution oL their groups being, Apetalous, Monopetalous' 



aud Polypelalous. 



Lindley, on the other hand, in his last 



Kingd 



rejecta the form of the corolla' as an elemenFin his general arrangement, adopting in- 

 sertion ^aW as his bads, three ^^f^his^ four sub-classes of Exogens being respectively 



r> J t:^ -r, ., superstructure of which is 



4esigna,ted Hypogynous JP 

 -^ ^f/'AIIiances** " 



group of orde 



wCisiiV^ 



monopetalous and polypetalous families combine to form his circle, if the term be allowable! 



How far science is to be benefited by this change 



As it 



^Z^'^tJ^jtSf'}?^^''^^!^ A ^"^J ^"^ .,^'ik^. .""> e b^ingby »; mean, 



fall, as artificial as il 



ment, and liable to nearly as great variations, even in the same orders, while many of 

 the alhances mclude orders greatly at ' variance with their essential characters. -^^- See, for 

 ZTil\f.'ri'^ ^iT^''' ^^^ «till, as such defects seem unavoidable, in the pre- 

 !^1^ f . H'T^'^^'' ^ *^^ ^^^ ^"^^^^ °^«^^ importance to them and view his 

 SITZ: * ""'^"^'^ "' "./''"' '^'^ ''^■^^' "g^* Sirecfion, and have no doubt 

 cW oThTd Lr:r1%''-^ more perfect' distribution by leading to the dis- 

 ^e^t^^^'^^^l'^!'.^''.^^^^- --truct our\atural^ystem, and 



( 



aJJIt t. ^.r \ — " ''^'' """^® eaince now stands. 



reasons wish and Tnff^dT'^/' CandolleV ^rraiigement as my guid^ and, for obvious 



tS^Tabol^f 1^^^^^^^ he has not thought fit to lighten 



nto mYno rlur X^^^ 1 this ^ extensive"' sub- class by distributing them 



study to suS'out^^n. ^ff 'I "^^'''^^' ^ ^^P^^^' ^^ ^^J ^f introduction to its 



occasionally leading to dfferent results tE. fi f' ""^ somewhat^different principles and 

 of Botan/ in Glasgow, the otlr ly tysd^f ^''' ^"' ^''^^''^ ^^ I^^' Amott, Professor 



babl7mLJSIy^L':a^^Serire^'y-"^!^"^^^ ^ beinglifi^t, ^may pro- 



to wKTch anv unWn ll.f !ir_ !^_^>¥^.J!!R joung Botantsl to'' determine th/ order 



to Dr. Arnott's 'arraniement, f is necessa^^'t^v' ^^'' *- ^'^ ^^'^ published. In regard 

 ing the reader to suppose for a r^nrr/ A .^T^ ^^^^»«^ compromising him by allow- 

 -'- -- ^ ' one. He thuT wrItTs ''The n^^^^ '\' ^^^''"^Pli^M Author ccJiisTders it a 



divide Coro^Morc^ So I 'n?^!!i "^ pesent^ adopt in my syllabus for 



perfect 



students [the thing' wanted here! PerhaS f \ ^f'v ^^ ^'^^^ artificial, but of great use to 

 more time to study. I drew ud thVS \ I ^""^^ ^^ ^^^^^ °»"ch of it when I have 

 when much hurried.%,: „ .. ?^ ^^' '^^'*= characters to chalk on the board last summer 



In recrar^i fn r^:J^J^^^^^ ^" '^*- 



Jndkn oJders^'^ '' ^ '''''"'^'^^ ^^^^^^^ -<lers 



ness tf fc4-.^^yX^^^^ will show^^fh-^ ■^-•^-I 



FLoiir na « u!" ^ ,^^ ^om the coroUaJ we finmo;;i„ 



d 



in the groups. Mine only includes the 





L Fn/'it-'^"'^^^^ i^to minor Souprto fa.^,^^^^^^^^ .^^ «^<i«^« ^'l»«h it is necessary 

 tion. For this purpose, apparentlv nf Vn.n^Il"^'*"*^ '^^k ix^vestigation and discrimioa- 



as fi,rni'«v '"^^^ investigat 



as turmshing more obvioaa characters, Dr. Arnott 



