HENFRETS BOTANY. 77 



not " achlamydeous," as our author states them to be (p. 90) ; 

 generally they are not even apetalous. 



In the botanical sense of the word, and as it is employed in 

 the same sentence (p. 93), the petals of the vine cannot be 

 said " to cohere above." The valvate petals are merely cadu- 

 cous for the most part before expanding, just as is more de- 

 cidedly the case in many Araliacece. In passing, we remark 

 that a valvate aestivation of the corolla in the latter is much 

 less distinctive than our author supposes (p. 311). Aralia 

 itself has the petals imbricated in the bud. 



It is becoming common to regard the tube of a so-called 

 superior calyx as a cup-like receptacle ; and there appears to 

 be reason for it in Cactacece and some other cases. Professor 

 Henfrey would seem to apply this view universally ; " for ex- 

 ample, in Rosacem, Vmhelliferce^ Cucurhitacece, Compositce,^* 

 [I] etc. But if applied to Rosa, why not to the Sanguisorhece 

 and to other Hosacece with a calyx-tube lined with a disk 

 bearing the stamens, etc. ? And is the cup a receptacle in 

 those Melastomacece which have an adnate ovary, but a calyx 

 when the ovary is free ? And how is it when the ovary and 

 cup cohere only by the nerves of the latter ? 



For palece Professor Henfrey coins an English word, " pales " 

 (p. 110), of which the singular would probably be " pale." 

 We would propose to call them " palets." 



There are convincing reasons why the perigj-nium of Carex 

 cannot be regarded as a perianth, as our author takes it to be 

 (p. 111). 



It is not correct to say that the false dissepiments of Datura 

 are formed " while the seeds are ripening " (p. 124) ; they 

 equally exist in the ovary. And we doubt if the transverse 

 false septa in Cathartocarpus and other Leguminosce are 

 " placental developments." 



We are pleased to find that our author prefers to consider 

 placentae as belonging to the carpels rather than to the axis, 

 although the close of paragraph 226 appears to imply the 

 contrary. 



We cannot agree that, " externally the campylotropous 

 ovule resembles the anatropous, except that there is no 



