366 



MORPHOLOGY. 



must be carefully distinguished all those dependent organs which have 

 also been termed the accessory corolla, as, for example, the corona of 

 the Narcissus (fig. 214, h.), and the so-called accessory corolla of the 



214 



Asclepiadacetz, which are for the most part only remarkable forms of the 

 filament and the connective of the stamens (see fig. 220.). 



All the remaining foliar organs of the flower, from the outermost 

 circle in which the stamens are developed, to the germen, may be embraced 

 under the general term of accessory stamens. A definitive separation 

 of them is impossible, since their forms are continually passing into one 

 another. The scales in the flower of Pimelea (fig. 215.) may serve as 

 an example. 



Here the history of the development is still too imperfect, especially 

 in the forms which produce the so-called inferior annulus, to allow 

 of our distinguishing those arising from a circle of leaves from those 

 which are a simple extension of the floral axis. In the first case, 



e e e, three stamens ; /, a stigma. , The two coherent perianthial leaves, with two 

 nerves (palea superior, Auct. ). C, Pistil, surrounded at the base by the two weakly 

 coherent accessory petals : h h, squamulee, Auct. ; g, germen ; /, one stigma ; the other 

 is cut off. 



J14 Narcissus l&tus. Flower, a, Peduncle ; b, spathe ; c, bud ; d, pedicel ; e, inferior 

 germen ; f, tube of the perianth ; g, limb of the perianth, appearing as six free leaves ; 

 h, corona, formed of six coherent ligules of the perianthial leaves. 



