DECOMPOSITE ORGANS. CHAP, f, 



leaf are enclosed within the margins of another, 

 as in Pink, Valerian, Sage. 4thly, The Convolute 

 (PL VIII. Fig. 7.), in which the leaf is rolled up in 

 the form of a scroll, the one margin being in the cen- 

 tre and the other in the circumference, as in Arum, 

 the Apricot, and many of the Grasses. 5thly, 

 The Imbricated, in which the several leaves overlap 

 and infold one another in the manner of tiles, as in 

 Privet, Spurge, and Laurel. 6thly, Conduplicate 

 (PL VIII. Fig. 8.), in which the leaf is folded up 

 into two parallel halves, extending from the midrib 

 to the margin, as in the Oak, Beach, and Cherry. 

 7thly, The Equitant (PL VIII. Fig. Q.), in which 

 the leaves are conduplicate but enclosing others, as 

 in Iris, Acorus, and Carex. Sthly, The Plaited 

 (PL VIII. Fig. 10.), in which the leaves are doubled 

 up like the folds of a fan, as in Alchemilla vulgaris 

 or Ladies' Mantle. Qthly, The Reclined, in which 

 the leaves are bent back towards the foot-stalk, as in 

 Aconitum, Adoxa, Anemone. lOthly, The Cir- 

 cinal (PL VIII. Fig. 11.), in which the leaves are 

 rolled in spirally, as in the Ferns, and some of the 

 Palms. 



Orflowers, If tne scales of a flower bud are taken and stripped 

 off, and the remaining part carefully opened up, it 

 will be found also to consist of the rudiments of an 

 incipient flower, exceedingly small and minute, but 

 complete in all its parts. This operation was per- 

 formed in the month of January by Du Hamel, on 

 the bud of a Pear-tree, and the following was the 



